diff --git a/filesys/confirmeddir.go b/api/filesys/confirmeddir.go
similarity index 100%
rename from filesys/confirmeddir.go
rename to api/filesys/confirmeddir.go
diff --git a/filesys/confirmeddir_test.go b/api/filesys/confirmeddir_test.go
similarity index 94%
rename from filesys/confirmeddir_test.go
rename to api/filesys/confirmeddir_test.go
index b8cc2e29d..9cdb55a09 100644
--- a/filesys/confirmeddir_test.go
+++ b/api/filesys/confirmeddir_test.go
@@ -1,11 +1,13 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package filesys
+package filesys_test
 
 import (
 	"path/filepath"
 	"testing"
+
+	. "sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestJoin(t *testing.T) {
@@ -27,7 +29,8 @@ func TestJoin(t *testing.T) {
 }
 
 func TestHasPrefix_Slash(t *testing.T) {
-	d, f, err := MakeFsInMemory().CleanedAbs("/")
+	fSys := MakeFsInMemory()
+	d, f, err := fSys.CleanedAbs("/")
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
diff --git a/filesys/file.go b/api/filesys/file.go
similarity index 100%
rename from filesys/file.go
rename to api/filesys/file.go
diff --git a/filesys/fileinmemory.go b/api/filesys/fileinmemory.go
similarity index 100%
rename from filesys/fileinmemory.go
rename to api/filesys/fileinmemory.go
diff --git a/filesys/fileondisk.go b/api/filesys/fileondisk.go
similarity index 100%
rename from filesys/fileondisk.go
rename to api/filesys/fileondisk.go
diff --git a/filesys/filesystem.go b/api/filesys/filesystem.go
similarity index 100%
rename from filesys/filesystem.go
rename to api/filesys/filesystem.go
diff --git a/filesys/fsinmemory.go b/api/filesys/fsinmemory.go
similarity index 100%
rename from filesys/fsinmemory.go
rename to api/filesys/fsinmemory.go
diff --git a/filesys/fsinmemory_test.go b/api/filesys/fsinmemory_test.go
similarity index 98%
rename from filesys/fsinmemory_test.go
rename to api/filesys/fsinmemory_test.go
index c99ee577a..3611599ee 100644
--- a/filesys/fsinmemory_test.go
+++ b/api/filesys/fsinmemory_test.go
@@ -1,12 +1,14 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package filesys
+package filesys_test
 
 import (
 	"bytes"
 	"reflect"
 	"testing"
+
+	. "sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestExists(t *testing.T) {
diff --git a/filesys/fsondisk.go b/api/filesys/fsondisk.go
similarity index 100%
rename from filesys/fsondisk.go
rename to api/filesys/fsondisk.go
diff --git a/filesys/fsondisk_test.go b/api/filesys/fsondisk_test.go
similarity index 98%
rename from filesys/fsondisk_test.go
rename to api/filesys/fsondisk_test.go
index 1db88c218..b3513c2a5 100644
--- a/filesys/fsondisk_test.go
+++ b/api/filesys/fsondisk_test.go
@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package filesys
+package filesys_test
 
 import (
 	"io/ioutil"
@@ -10,6 +10,8 @@ import (
 	"path/filepath"
 	"reflect"
 	"testing"
+
+	. "sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func makeTestDir(t *testing.T) (FileSystem, string) {
diff --git a/filesys/rpath.go b/api/filesys/rpath.go
similarity index 100%
rename from filesys/rpath.go
rename to api/filesys/rpath.go
diff --git a/hasher/hasher.go b/api/hasher/hasher.go
similarity index 100%
rename from hasher/hasher.go
rename to api/hasher/hasher.go
diff --git a/hasher/hasher_test.go b/api/hasher/hasher_test.go
similarity index 95%
rename from hasher/hasher_test.go
rename to api/hasher/hasher_test.go
index 95ee3624b..327a945b6 100644
--- a/hasher/hasher_test.go
+++ b/api/hasher/hasher_test.go
@@ -6,7 +6,7 @@ package hasher_test
 import (
 	"testing"
 
-	. "sigs.k8s.io/kustomize/v3/hasher"
+	. "sigs.k8s.io/kustomize/v3/api/hasher"
 )
 
 func TestSortArrayAndComputeHash(t *testing.T) {
diff --git a/kustapiversion/main.go b/api/kustapiversion/main.go
similarity index 92%
rename from kustapiversion/main.go
rename to api/kustapiversion/main.go
index 87a7982c7..f90bef1dd 100644
--- a/kustapiversion/main.go
+++ b/api/kustapiversion/main.go
@@ -8,7 +8,7 @@ import (
 	"fmt"
 	"os"
 
-	"sigs.k8s.io/kustomize/v3/provenance"
+	"sigs.k8s.io/kustomize/v3/api/provenance"
 )
 
 // TODO: delete this when we find a better way to generate release notes.
diff --git a/pkg/kusttest/kusttestharness.go b/api/kusttest/kusttestharness.go
similarity index 93%
rename from pkg/kusttest/kusttestharness.go
rename to api/kusttest/kusttestharness.go
index 6a98e056b..31d2ff7a3 100644
--- a/pkg/kusttest/kusttestharness.go
+++ b/api/kusttest/kusttestharness.go
@@ -9,6 +9,7 @@ import (
 	"strings"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/transformer"
@@ -20,10 +21,12 @@ import (
 	"sigs.k8s.io/kustomize/v3/pkg/target"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config/defaultconfig"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
-// KustTestHarness helps test kustomization generation and transformation.
+// KustTestHarness is an environment for running a kustomize build,
+// aka a run of MakeCustomizedResMap.  It holds a file loader
+// presumably primed with an in-memory file system, a plugin
+// loader, factories to make what it needs, etc.
 type KustTestHarness struct {
 	t   *testing.T
 	rf  *resmap.Factory
@@ -36,12 +39,12 @@ func NewKustTestHarness(t *testing.T, path string) *KustTestHarness {
 		t, path, loader.RestrictionRootOnly, plugins.DefaultPluginConfig())
 }
 
-func NewKustTestPluginHarness(t *testing.T, path string) *KustTestHarness {
+func NewKustTestHarnessAllowPlugins(t *testing.T, path string) *KustTestHarness {
 	return NewKustTestHarnessFull(
 		t, path, loader.RestrictionRootOnly, plugins.ActivePluginConfig())
 }
 
-func NewKustTestNoLoadRestrictorHarness(t *testing.T, path string) *KustTestHarness {
+func NewKustTestHarnessNoLoadRestrictor(t *testing.T, path string) *KustTestHarness {
 	return NewKustTestHarnessFull(
 		t, path, loader.RestrictionNone, plugins.DefaultPluginConfig())
 }
diff --git a/pluglib/envfortest.go b/api/kusttest/plugintestenv.go
similarity index 73%
rename from pluglib/envfortest.go
rename to api/kusttest/plugintestenv.go
index eef203ab2..acf4d470c 100644
--- a/pluglib/envfortest.go
+++ b/api/kusttest/plugintestenv.go
@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package pluglib
+package kusttest_test
 
 import (
 	"io/ioutil"
@@ -15,9 +15,10 @@ import (
 	"sigs.k8s.io/kustomize/v3/pkg/plugins"
 )
 
-// EnvForTest manages the plugin test environment.
-// It sets/resets XDG_CONFIG_HOME, makes/removes a temp objRoot.
-type EnvForTest struct {
+// PluginTestEnv manages the plugin test environment.
+// It sets/resets XDG_CONFIG_HOME, makes/removes a temp objRoot,
+// manages a plugin compiler, etc.
+type PluginTestEnv struct {
 	t        *testing.T
 	compiler *plugins.Compiler
 	workDir  string
@@ -25,30 +26,30 @@ type EnvForTest struct {
 	wasSet   bool
 }
 
-func NewEnvForTest(t *testing.T) *EnvForTest {
-	return &EnvForTest{t: t}
+func NewPluginTestEnv(t *testing.T) *PluginTestEnv {
+	return &PluginTestEnv{t: t}
 }
 
-func (x *EnvForTest) Set() *EnvForTest {
+func (x *PluginTestEnv) Set() *PluginTestEnv {
 	x.createWorkDir()
 	x.compiler = x.makeCompiler()
 	x.setEnv()
 	return x
 }
 
-func (x *EnvForTest) Reset() {
+func (x *PluginTestEnv) Reset() {
 	x.resetEnv()
 	x.removeWorkDir()
 }
 
-func (x *EnvForTest) BuildGoPlugin(g, v, k string) {
+func (x *PluginTestEnv) BuildGoPlugin(g, v, k string) {
 	err := x.compiler.Compile(g, v, k)
 	if err != nil {
 		x.t.Errorf("compile failed: %v", err)
 	}
 }
 
-func (x *EnvForTest) BuildExecPlugin(g, v, k string) {
+func (x *PluginTestEnv) BuildExecPlugin(g, v, k string) {
 	lowK := strings.ToLower(k)
 	obj := filepath.Join(x.compiler.ObjRoot(), g, v, lowK, k)
 	src := filepath.Join(x.compiler.SrcRoot(), g, v, lowK, k)
@@ -62,7 +63,7 @@ func (x *EnvForTest) BuildExecPlugin(g, v, k string) {
 	}
 }
 
-func (x *EnvForTest) makeCompiler() *plugins.Compiler {
+func (x *PluginTestEnv) makeCompiler() *plugins.Compiler {
 	// The plugin loader wants to find object code under
 	//    $XDG_CONFIG_HOME/kustomize/plugins
 	// and the compiler writes object code to
@@ -81,7 +82,7 @@ func (x *EnvForTest) makeCompiler() *plugins.Compiler {
 	return plugins.NewCompiler(srcRoot, objRoot)
 }
 
-func (x *EnvForTest) createWorkDir() {
+func (x *PluginTestEnv) createWorkDir() {
 	var err error
 	x.workDir, err = ioutil.TempDir("", "kustomize-plugin-tests")
 	if err != nil {
@@ -89,7 +90,7 @@ func (x *EnvForTest) createWorkDir() {
 	}
 }
 
-func (x *EnvForTest) removeWorkDir() {
+func (x *PluginTestEnv) removeWorkDir() {
 	err := os.RemoveAll(x.workDir)
 	if err != nil {
 		x.t.Errorf(
@@ -97,12 +98,12 @@ func (x *EnvForTest) removeWorkDir() {
 	}
 }
 
-func (x *EnvForTest) setEnv() {
+func (x *PluginTestEnv) setEnv() {
 	x.oldXdg, x.wasSet = os.LookupEnv(pgmconfig.XdgConfigHome)
 	os.Setenv(pgmconfig.XdgConfigHome, x.workDir)
 }
 
-func (x *EnvForTest) resetEnv() {
+func (x *PluginTestEnv) resetEnv() {
 	if x.wasSet {
 		os.Setenv(pgmconfig.XdgConfigHome, x.oldXdg)
 	} else {
diff --git a/kv/kv.go b/api/kv/kv.go
similarity index 99%
rename from kv/kv.go
rename to api/kv/kv.go
index 973bd4e4d..562699838 100644
--- a/kv/kv.go
+++ b/api/kv/kv.go
@@ -14,8 +14,8 @@ import (
 	"unicode/utf8"
 
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 var utf8bom = []byte{0xEF, 0xBB, 0xBF}
diff --git a/kv/kv_test.go b/api/kv/kv_test.go
similarity index 96%
rename from kv/kv_test.go
rename to api/kv/kv_test.go
index dba73ce92..152b07c9f 100644
--- a/kv/kv_test.go
+++ b/api/kv/kv_test.go
@@ -7,10 +7,10 @@ import (
 	"reflect"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	ldr "sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func makeKvLoader(fSys filesys.FileSystem) *loader {
diff --git a/provenance/provenance.go b/api/provenance/provenance.go
similarity index 100%
rename from provenance/provenance.go
rename to api/provenance/provenance.go
diff --git a/pkg/gvk/gvk.go b/api/resid/gvk.go
similarity index 95%
rename from pkg/gvk/gvk.go
rename to api/resid/gvk.go
index 93ee10362..fa50a47a0 100644
--- a/pkg/gvk/gvk.go
+++ b/api/resid/gvk.go
@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package gvk
+package resid
 
 import (
 	"strings"
@@ -22,10 +22,10 @@ func FromKind(k string) Gvk {
 	}
 }
 
-// FromString makes a Gvk with a string,
+// GvkFromString makes a Gvk with a string,
 // which is constructed by String() function
-func FromString(s string) Gvk {
-	values := strings.Split(s, separator)
+func GvkFromString(s string) Gvk {
+	values := strings.Split(s, fieldSep)
 	g := values[0]
 	if g == noGroup {
 		g = ""
@@ -50,7 +50,7 @@ const (
 	noGroup   = "~G"
 	noVersion = "~V"
 	noKind    = "~K"
-	separator = "_"
+	fieldSep  = "_"
 )
 
 // String returns a string representation of the GVK.
@@ -67,7 +67,7 @@ func (x Gvk) String() string {
 	if k == "" {
 		k = noKind
 	}
-	return strings.Join([]string{g, v, k}, separator)
+	return strings.Join([]string{g, v, k}, fieldSep)
 }
 
 // Equals returns true if the Gvk's have equal fields.
diff --git a/pkg/gvk/gvk_test.go b/api/resid/gvk_test.go
similarity index 99%
rename from pkg/gvk/gvk_test.go
rename to api/resid/gvk_test.go
index ed0dc8b16..8957ae53a 100644
--- a/pkg/gvk/gvk_test.go
+++ b/api/resid/gvk_test.go
@@ -14,9 +14,11 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package gvk
+package resid
 
-import "testing"
+import (
+	"testing"
+)
 
 var equalsTests = []struct {
 	x1 Gvk
diff --git a/pkg/resid/resid.go b/api/resid/resid.go
similarity index 91%
rename from pkg/resid/resid.go
rename to api/resid/resid.go
index 335fb9211..28310e8f3 100644
--- a/pkg/resid/resid.go
+++ b/api/resid/resid.go
@@ -5,14 +5,12 @@ package resid
 
 import (
 	"strings"
-
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
 // ResId is an identifier of a k8s resource object.
 type ResId struct {
 	// Gvk of the resource.
-	gvk.Gvk `json:",inline,omitempty" yaml:",inline,omitempty"`
+	Gvk `json:",inline,omitempty" yaml:",inline,omitempty"`
 
 	// Name of the resource before transformation.
 	Name string `json:"name,omitempty" yaml:"name,omitempty"`
@@ -26,18 +24,18 @@ type ResId struct {
 
 // NewResIdWithNamespace creates new ResId
 // in a given namespace.
-func NewResIdWithNamespace(k gvk.Gvk, n, ns string) ResId {
+func NewResIdWithNamespace(k Gvk, n, ns string) ResId {
 	return ResId{Gvk: k, Name: n, Namespace: ns}
 }
 
 // NewResId creates new ResId.
-func NewResId(k gvk.Gvk, n string) ResId {
+func NewResId(k Gvk, n string) ResId {
 	return ResId{Gvk: k, Name: n}
 }
 
 // NewResIdKindOnly creates a new ResId.
 func NewResIdKindOnly(k string, n string) ResId {
-	return ResId{Gvk: gvk.FromKind(k), Name: n}
+	return ResId{Gvk: FromKind(k), Name: n}
 }
 
 const (
@@ -64,7 +62,7 @@ func (id ResId) String() string {
 
 func FromString(s string) ResId {
 	values := strings.Split(s, separator)
-	g := gvk.FromString(values[0])
+	g := GvkFromString(values[0])
 
 	ns := values[1]
 	if ns == noNamespace {
diff --git a/pkg/resid/resid_test.go b/api/resid/resid_test.go
similarity index 72%
rename from pkg/resid/resid_test.go
rename to api/resid/resid_test.go
index b74f2be39..ec2cf8404 100644
--- a/pkg/resid/resid_test.go
+++ b/api/resid/resid_test.go
@@ -5,18 +5,16 @@ package resid
 
 import (
 	"testing"
-
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
-var stringTests = []struct {
+var resIdStringTests = []struct {
 	x ResId
 	s string
 }{
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+			Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 			Name:      "nm",
 		},
 		"g_v_k|ns|nm",
@@ -24,7 +22,7 @@ var stringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{Version: "v", Kind: "k"},
+			Gvk:       Gvk{Version: "v", Kind: "k"},
 			Name:      "nm",
 		},
 		"~G_v_k|ns|nm",
@@ -32,7 +30,7 @@ var stringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{Kind: "k"},
+			Gvk:       Gvk{Kind: "k"},
 			Name:      "nm",
 		},
 		"~G_~V_k|ns|nm",
@@ -40,34 +38,34 @@ var stringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{},
+			Gvk:       Gvk{},
 			Name:      "nm",
 		},
 		"~G_~V_~K|ns|nm",
 	},
 	{
 		ResId{
-			Gvk:  gvk.Gvk{},
+			Gvk:  Gvk{},
 			Name: "nm",
 		},
 		"~G_~V_~K|~X|nm",
 	},
 	{
 		ResId{
-			Gvk:  gvk.Gvk{},
+			Gvk:  Gvk{},
 			Name: "nm",
 		},
 		"~G_~V_~K|~X|nm",
 	},
 	{
 		ResId{
-			Gvk: gvk.Gvk{},
+			Gvk: Gvk{},
 		},
 		"~G_~V_~K|~X|~N",
 	},
 	{
 		ResId{
-			Gvk: gvk.Gvk{},
+			Gvk: Gvk{},
 		},
 		"~G_~V_~K|~X|~N",
 	},
@@ -77,8 +75,8 @@ var stringTests = []struct {
 	},
 }
 
-func TestString(t *testing.T) {
-	for _, hey := range stringTests {
+func TestResIdString(t *testing.T) {
+	for _, hey := range resIdStringTests {
 		if hey.x.String() != hey.s {
 			t.Fatalf("Actual: %v,  Expected: '%s'", hey.x, hey.s)
 		}
@@ -92,7 +90,7 @@ var gvknStringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+			Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 			Name:      "nm",
 		},
 		"g_v_k|nm",
@@ -100,7 +98,7 @@ var gvknStringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{Version: "v", Kind: "k"},
+			Gvk:       Gvk{Version: "v", Kind: "k"},
 			Name:      "nm",
 		},
 		"~G_v_k|nm",
@@ -108,7 +106,7 @@ var gvknStringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{Kind: "k"},
+			Gvk:       Gvk{Kind: "k"},
 			Name:      "nm",
 		},
 		"~G_~V_k|nm",
@@ -116,34 +114,34 @@ var gvknStringTests = []struct {
 	{
 		ResId{
 			Namespace: "ns",
-			Gvk:       gvk.Gvk{},
+			Gvk:       Gvk{},
 			Name:      "nm",
 		},
 		"~G_~V_~K|nm",
 	},
 	{
 		ResId{
-			Gvk:  gvk.Gvk{},
+			Gvk:  Gvk{},
 			Name: "nm",
 		},
 		"~G_~V_~K|nm",
 	},
 	{
 		ResId{
-			Gvk:  gvk.Gvk{},
+			Gvk:  Gvk{},
 			Name: "nm",
 		},
 		"~G_~V_~K|nm",
 	},
 	{
 		ResId{
-			Gvk: gvk.Gvk{},
+			Gvk: Gvk{},
 		},
 		"~G_~V_~K|",
 	},
 	{
 		ResId{
-			Gvk: gvk.Gvk{},
+			Gvk: Gvk{},
 		},
 		"~G_~V_~K|",
 	},
@@ -161,7 +159,7 @@ func TestGvknString(t *testing.T) {
 	}
 }
 
-func TestEquals(t *testing.T) {
+func TestResIdEquals(t *testing.T) {
 
 	var GvknEqualsTest = []struct {
 		id1        ResId
@@ -173,12 +171,12 @@ func TestEquals(t *testing.T) {
 		{
 			id1: ResId{
 				Namespace: "X",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			id2: ResId{
 				Namespace: "X",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			gVknResult: true,
@@ -188,12 +186,12 @@ func TestEquals(t *testing.T) {
 		{
 			id1: ResId{
 				Namespace: "X",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			id2: ResId{
 				Namespace: "Z",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			gVknResult: true,
@@ -203,11 +201,11 @@ func TestEquals(t *testing.T) {
 		{
 			id1: ResId{
 				Namespace: "X",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			id2: ResId{
-				Gvk:  gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:  Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name: "nm",
 			},
 			gVknResult: true,
@@ -217,12 +215,12 @@ func TestEquals(t *testing.T) {
 		{
 			id1: ResId{
 				Namespace: "X",
-				Gvk:       gvk.Gvk{Version: "v", Kind: "k"},
+				Gvk:       Gvk{Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			id2: ResId{
 				Namespace: "Z",
-				Gvk:       gvk.Gvk{Version: "v", Kind: "k"},
+				Gvk:       Gvk{Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			gVknResult: true,
@@ -232,12 +230,12 @@ func TestEquals(t *testing.T) {
 		{
 			id1: ResId{
 				Namespace: "X",
-				Gvk:       gvk.Gvk{Kind: "k"},
+				Gvk:       Gvk{Kind: "k"},
 				Name:      "nm",
 			},
 			id2: ResId{
 				Namespace: "Z",
-				Gvk:       gvk.Gvk{Kind: "k"},
+				Gvk:       Gvk{Kind: "k"},
 				Name:      "nm",
 			},
 			gVknResult: true,
@@ -246,11 +244,11 @@ func TestEquals(t *testing.T) {
 		},
 		{
 			id1: ResId{
-				Gvk:  gvk.Gvk{Kind: "k"},
+				Gvk:  Gvk{Kind: "k"},
 				Name: "nm",
 			},
 			id2: ResId{
-				Gvk:  gvk.Gvk{Kind: "k"},
+				Gvk:  Gvk{Kind: "k"},
 				Name: "nm2",
 			},
 			gVknResult: false,
@@ -259,11 +257,11 @@ func TestEquals(t *testing.T) {
 		},
 		{
 			id1: ResId{
-				Gvk:  gvk.Gvk{Kind: "k"},
+				Gvk:  Gvk{Kind: "k"},
 				Name: "nm",
 			},
 			id2: ResId{
-				Gvk:  gvk.Gvk{Kind: "Node"},
+				Gvk:  Gvk{Kind: "Node"},
 				Name: "nm",
 			},
 			gVknResult: false,
@@ -272,11 +270,11 @@ func TestEquals(t *testing.T) {
 		},
 		{
 			id1: ResId{
-				Gvk:  gvk.Gvk{Kind: "Node"},
+				Gvk:  Gvk{Kind: "Node"},
 				Name: "nm1",
 			},
 			id2: ResId{
-				Gvk:  gvk.Gvk{Kind: "Node"},
+				Gvk:  Gvk{Kind: "Node"},
 				Name: "nm2",
 			},
 			gVknResult: false,
@@ -286,11 +284,11 @@ func TestEquals(t *testing.T) {
 		{
 			id1: ResId{
 				Namespace: "default",
-				Gvk:       gvk.Gvk{Kind: "k"},
+				Gvk:       Gvk{Kind: "k"},
 				Name:      "nm1",
 			},
 			id2: ResId{
-				Gvk:  gvk.Gvk{Kind: "k"},
+				Gvk:  Gvk{Kind: "k"},
 				Name: "nm2",
 			},
 			gVknResult: false,
@@ -331,34 +329,34 @@ func TestEquals(t *testing.T) {
 var ids = []ResId{
 	{
 		Namespace: "ns",
-		Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+		Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 		Name:      "nm",
 	},
 	{
 		Namespace: "ns",
-		Gvk:       gvk.Gvk{Version: "v", Kind: "k"},
+		Gvk:       Gvk{Version: "v", Kind: "k"},
 		Name:      "nm",
 	},
 	{
 		Namespace: "ns",
-		Gvk:       gvk.Gvk{Kind: "k"},
+		Gvk:       Gvk{Kind: "k"},
 		Name:      "nm",
 	},
 	{
 		Namespace: "ns",
-		Gvk:       gvk.Gvk{},
+		Gvk:       Gvk{},
 		Name:      "nm",
 	},
 	{
-		Gvk:  gvk.Gvk{},
+		Gvk:  Gvk{},
 		Name: "nm",
 	},
 	{
-		Gvk:  gvk.Gvk{},
+		Gvk:  Gvk{},
 		Name: "nm",
 	},
 	{
-		Gvk: gvk.Gvk{},
+		Gvk: Gvk{},
 	},
 }
 
@@ -378,7 +376,7 @@ func TestEffectiveNamespace(t *testing.T) {
 	}{
 		{
 			id: ResId{
-				Gvk:  gvk.Gvk{Group: "g", Version: "v", Kind: "Node"},
+				Gvk:  Gvk{Group: "g", Version: "v", Kind: "Node"},
 				Name: "nm",
 			},
 			expected: TotallyNotANamespace,
@@ -386,7 +384,7 @@ func TestEffectiveNamespace(t *testing.T) {
 		{
 			id: ResId{
 				Namespace: "foo",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "Node"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "Node"},
 				Name:      "nm",
 			},
 			expected: TotallyNotANamespace,
@@ -394,7 +392,7 @@ func TestEffectiveNamespace(t *testing.T) {
 		{
 			id: ResId{
 				Namespace: "foo",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			expected: "foo",
@@ -402,14 +400,14 @@ func TestEffectiveNamespace(t *testing.T) {
 		{
 			id: ResId{
 				Namespace: "",
-				Gvk:       gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:       Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name:      "nm",
 			},
 			expected: DefaultNamespace,
 		},
 		{
 			id: ResId{
-				Gvk:  gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
+				Gvk:  Gvk{Group: "g", Version: "v", Kind: "k"},
 				Name: "nm",
 			},
 			expected: DefaultNamespace,
diff --git a/types/configmapargs.go b/api/types/configmapargs.go
similarity index 100%
rename from types/configmapargs.go
rename to api/types/configmapargs.go
diff --git a/types/doc.go b/api/types/doc.go
similarity index 100%
rename from types/doc.go
rename to api/types/doc.go
diff --git a/types/fix.go b/api/types/fix.go
similarity index 100%
rename from types/fix.go
rename to api/types/fix.go
diff --git a/types/garbagepolicy.go b/api/types/garbagepolicy.go
similarity index 100%
rename from types/garbagepolicy.go
rename to api/types/garbagepolicy.go
diff --git a/types/garbagepolicy_string.go b/api/types/garbagepolicy_string.go
similarity index 100%
rename from types/garbagepolicy_string.go
rename to api/types/garbagepolicy_string.go
diff --git a/types/genargs.go b/api/types/genargs.go
similarity index 100%
rename from types/genargs.go
rename to api/types/genargs.go
diff --git a/types/genargs_test.go b/api/types/genargs_test.go
similarity index 94%
rename from types/genargs_test.go
rename to api/types/genargs_test.go
index 01f316447..5698537b2 100644
--- a/types/genargs_test.go
+++ b/api/types/genargs_test.go
@@ -6,7 +6,7 @@ package types_test
 import (
 	"testing"
 
-	. "sigs.k8s.io/kustomize/v3/types"
+	. "sigs.k8s.io/kustomize/v3/api/types"
 )
 
 func TestGenArgs_String(t *testing.T) {
diff --git a/types/generationbehavior.go b/api/types/generationbehavior.go
similarity index 100%
rename from types/generationbehavior.go
rename to api/types/generationbehavior.go
diff --git a/types/generatorargs.go b/api/types/generatorargs.go
similarity index 100%
rename from types/generatorargs.go
rename to api/types/generatorargs.go
diff --git a/types/generatoroptions.go b/api/types/generatoroptions.go
similarity index 100%
rename from types/generatoroptions.go
rename to api/types/generatoroptions.go
diff --git a/types/image.go b/api/types/image.go
similarity index 100%
rename from types/image.go
rename to api/types/image.go
diff --git a/types/inventory.go b/api/types/inventory.go
similarity index 100%
rename from types/inventory.go
rename to api/types/inventory.go
diff --git a/types/kustomization.go b/api/types/kustomization.go
similarity index 100%
rename from types/kustomization.go
rename to api/types/kustomization.go
diff --git a/types/kvpairsources.go b/api/types/kvpairsources.go
similarity index 100%
rename from types/kvpairsources.go
rename to api/types/kvpairsources.go
diff --git a/types/objectmeta.go b/api/types/objectmeta.go
similarity index 100%
rename from types/objectmeta.go
rename to api/types/objectmeta.go
diff --git a/types/pair.go b/api/types/pair.go
similarity index 100%
rename from types/pair.go
rename to api/types/pair.go
diff --git a/types/patch.go b/api/types/patch.go
similarity index 100%
rename from types/patch.go
rename to api/types/patch.go
diff --git a/types/patchjson6902.go b/api/types/patchjson6902.go
similarity index 100%
rename from types/patchjson6902.go
rename to api/types/patchjson6902.go
diff --git a/types/patchstrategicmerge.go b/api/types/patchstrategicmerge.go
similarity index 100%
rename from types/patchstrategicmerge.go
rename to api/types/patchstrategicmerge.go
diff --git a/types/patchtarget.go b/api/types/patchtarget.go
similarity index 74%
rename from types/patchtarget.go
rename to api/types/patchtarget.go
index b3492515c..e2962c8cb 100644
--- a/types/patchtarget.go
+++ b/api/types/patchtarget.go
@@ -3,11 +3,13 @@
 
 package types
 
-import "sigs.k8s.io/kustomize/v3/pkg/gvk"
+import (
+	"sigs.k8s.io/kustomize/v3/api/resid"
+)
 
 // PatchTarget represents the kubernetes object that the patch is applied to
 type PatchTarget struct {
-	gvk.Gvk   `json:",inline,omitempty" yaml:",inline,omitempty"`
+	resid.Gvk `json:",inline,omitempty" yaml:",inline,omitempty"`
 	Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
 	Name      string `json:"name" yaml:"name"`
 }
diff --git a/types/pluginconfig.go b/api/types/pluginconfig.go
similarity index 100%
rename from types/pluginconfig.go
rename to api/types/pluginconfig.go
diff --git a/types/replica.go b/api/types/replica.go
similarity index 100%
rename from types/replica.go
rename to api/types/replica.go
diff --git a/types/secretargs.go b/api/types/secretargs.go
similarity index 100%
rename from types/secretargs.go
rename to api/types/secretargs.go
diff --git a/types/selector.go b/api/types/selector.go
similarity index 89%
rename from types/selector.go
rename to api/types/selector.go
index 76d433e21..f6d45ddd0 100644
--- a/types/selector.go
+++ b/api/types/selector.go
@@ -3,13 +3,15 @@
 
 package types
 
-import "sigs.k8s.io/kustomize/v3/pkg/gvk"
+import (
+	"sigs.k8s.io/kustomize/v3/api/resid"
+)
 
 // Selector specifies a set of resources.
 // Any resource that matches intersection of all conditions
 // is included in this set.
 type Selector struct {
-	gvk.Gvk   `json:",inline,omitempty" yaml:",inline,omitempty"`
+	resid.Gvk `json:",inline,omitempty" yaml:",inline,omitempty"`
 	Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
 	Name      string `json:"name,omitempty" yaml:"name,omitempty"`
 
diff --git a/types/typemeta.go b/api/types/typemeta.go
similarity index 100%
rename from types/typemeta.go
rename to api/types/typemeta.go
diff --git a/types/var.go b/api/types/var.go
similarity index 97%
rename from types/var.go
rename to api/types/var.go
index a856c0013..323bee097 100644
--- a/types/var.go
+++ b/api/types/var.go
@@ -9,7 +9,7 @@ import (
 	"sort"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 const defaultFieldPath = "metadata.name"
@@ -40,13 +40,13 @@ type Var struct {
 // for Var.ObjRef
 type Target struct {
 	APIVersion string `json:"apiVersion,omitempty" yaml:"apiVersion,omitempty"`
-	gvk.Gvk    `json:",inline,omitempty" yaml:",inline,omitempty"`
+	resid.Gvk  `json:",inline,omitempty" yaml:",inline,omitempty"`
 	Name       string `json:"name" yaml:"name"`
 	Namespace  string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
 }
 
 // GVK returns the Gvk object in Target
-func (t *Target) GVK() gvk.Gvk {
+func (t *Target) GVK() resid.Gvk {
 	if t.APIVersion == "" {
 		return t.Gvk
 	}
diff --git a/types/var_test.go b/api/types/var_test.go
similarity index 88%
rename from types/var_test.go
rename to api/types/var_test.go
index f4452901f..10ff62f1d 100644
--- a/types/var_test.go
+++ b/api/types/var_test.go
@@ -9,13 +9,13 @@ import (
 	"testing"
 
 	"gopkg.in/yaml.v2"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 func TestGVK(t *testing.T) {
 	type testcase struct {
 		data     string
-		expected gvk.Gvk
+		expected resid.Gvk
 	}
 
 	testcases := []testcase{
@@ -25,7 +25,7 @@ apiVersion: v1
 kind: Secret
 name: my-secret
 `,
-			expected: gvk.Gvk{Group: "", Version: "v1", Kind: "Secret"},
+			expected: resid.Gvk{Group: "", Version: "v1", Kind: "Secret"},
 		},
 		{
 			data: `
@@ -33,7 +33,7 @@ apiVersion: myapps/v1
 kind: MyKind
 name: my-kind
 `,
-			expected: gvk.Gvk{Group: "myapps", Version: "v1", Kind: "MyKind"},
+			expected: resid.Gvk{Group: "myapps", Version: "v1", Kind: "MyKind"},
 		},
 		{
 			data: `
@@ -41,7 +41,7 @@ version: v2
 kind: MyKind
 name: my-kind
 `,
-			expected: gvk.Gvk{Version: "v2", Kind: "MyKind"},
+			expected: resid.Gvk{Version: "v2", Kind: "MyKind"},
 		},
 	}
 
@@ -61,7 +61,7 @@ func TestDefaulting(t *testing.T) {
 	v := &Var{
 		Name: "SOME_VARIABLE_NAME",
 		ObjRef: Target{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Version: "v1",
 				Kind:    "Secret",
 			},
@@ -82,21 +82,21 @@ func TestVarSet(t *testing.T) {
 			Name: "SHELLVARS",
 			ObjRef: Target{
 				APIVersion: "v7",
-				Gvk:        gvk.Gvk{Kind: "ConfigMap"},
+				Gvk:        resid.Gvk{Kind: "ConfigMap"},
 				Name:       "bash"},
 		},
 		{
 			Name: "BACKEND",
 			ObjRef: Target{
 				APIVersion: "v7",
-				Gvk:        gvk.Gvk{Kind: "Deployment"},
+				Gvk:        resid.Gvk{Kind: "Deployment"},
 				Name:       "myTiredBackend"},
 		},
 		{
 			Name: "AWARD",
 			ObjRef: Target{
 				APIVersion: "v7",
-				Gvk:        gvk.Gvk{Kind: "Service"},
+				Gvk:        resid.Gvk{Kind: "Service"},
 				Name:       "nobelPrize"},
 			FieldRef: FieldSelector{FieldPath: "some.arbitrary.path"},
 		},
diff --git a/docs/plugins/builtins.md b/docs/plugins/builtins.md
index ff557fbe2..74d2bd5f5 100644
--- a/docs/plugins/builtins.md
+++ b/docs/plugins/builtins.md
@@ -33,16 +33,16 @@ be defaulted.  The latter method allows for
 complete plugin argument specification.
 
 
-[types.GeneratorOptions]: ../../types/generatoroptions.go
-[types.SecretArgs]: ../../types/secretargs.go
-[types.ConfigMapArgs]: ../../types/configmapargs.go
+[types.GeneratorOptions]: ../../api/types/generatoroptions.go
+[types.SecretArgs]: ../../api/types/secretargs.go
+[types.ConfigMapArgs]: ../../api/types/configmapargs.go
 [config.FieldSpec]: ../../pkg/transformers/config/fieldspec.go
-[types.ObjectMeta]: ../../types/objectmeta.go
-[types.Selector]: ../../types/selector.go
-[types.Replica]: ../../types/replica.go
-[types.PatchStrategicMerge]: ../../types/patchstrategicmerge.go
-[types.PatchTarget]: ../../types/patchtarget.go
-[image.Image]: ../../types/image.go
+[types.ObjectMeta]: ../../api/types/objectmeta.go
+[types.Selector]: ../../api/types/selector.go
+[types.Replica]: ../../api/types/replica.go
+[types.PatchStrategicMerge]: ../../api/types/patchstrategicmerge.go
+[types.PatchTarget]: ../../api/types/patchtarget.go
+[image.Image]: ../../api/types/image.go
 
 ## _AnnotationTransformer_
 ### Usage via `kustomization.yaml`
diff --git a/internal/loadertest/fakeloader.go b/internal/loadertest/fakeloader.go
index 9dabe4bbb..5c7972f24 100644
--- a/internal/loadertest/fakeloader.go
+++ b/internal/loadertest/fakeloader.go
@@ -7,7 +7,7 @@ package loadertest
 import (
 	"log"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 )
diff --git a/k8sdeps/configmapandsecret/configmapfactory.go b/k8sdeps/configmapandsecret/configmapfactory.go
index 0c834fa63..e00798c2e 100644
--- a/k8sdeps/configmapandsecret/configmapfactory.go
+++ b/k8sdeps/configmapandsecret/configmapfactory.go
@@ -10,7 +10,7 @@ import (
 
 	"github.com/pkg/errors"
 	"k8s.io/api/core/v1"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/types"
 )
 
 func makeFreshConfigMap(
diff --git a/k8sdeps/configmapandsecret/configmapfactory_test.go b/k8sdeps/configmapandsecret/configmapfactory_test.go
index ca3b33391..761c8801d 100644
--- a/k8sdeps/configmapandsecret/configmapfactory_test.go
+++ b/k8sdeps/configmapandsecret/configmapfactory_test.go
@@ -10,11 +10,11 @@ import (
 
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/v3/filesys"
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func makeEnvConfigMap(name string) *corev1.ConfigMap {
diff --git a/k8sdeps/configmapandsecret/factory.go b/k8sdeps/configmapandsecret/factory.go
index 15004afc8..babf07a8d 100644
--- a/k8sdeps/configmapandsecret/factory.go
+++ b/k8sdeps/configmapandsecret/factory.go
@@ -4,8 +4,8 @@
 package configmapandsecret
 
 import (
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // Factory makes ConfigMaps and Secrets.
diff --git a/k8sdeps/configmapandsecret/secretfactory.go b/k8sdeps/configmapandsecret/secretfactory.go
index 3ff954e3b..1852f724a 100644
--- a/k8sdeps/configmapandsecret/secretfactory.go
+++ b/k8sdeps/configmapandsecret/secretfactory.go
@@ -7,7 +7,7 @@ import (
 	"fmt"
 
 	corev1 "k8s.io/api/core/v1"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/types"
 )
 
 func makeFreshSecret(
diff --git a/k8sdeps/configmapandsecret/secretfactory_test.go b/k8sdeps/configmapandsecret/secretfactory_test.go
index 929b729d0..10a5eb4ee 100644
--- a/k8sdeps/configmapandsecret/secretfactory_test.go
+++ b/k8sdeps/configmapandsecret/secretfactory_test.go
@@ -9,11 +9,11 @@ import (
 
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/v3/filesys"
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func makeEnvSecret(name string) *corev1.Secret {
diff --git a/k8sdeps/kunstruct/factory.go b/k8sdeps/kunstruct/factory.go
index ffb48e9a7..3718ea5c7 100644
--- a/k8sdeps/kunstruct/factory.go
+++ b/k8sdeps/kunstruct/factory.go
@@ -12,9 +12,9 @@ import (
 
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/util/yaml"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/configmapandsecret"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // KunstructuredFactoryImpl hides construction using apimachinery types.
diff --git a/k8sdeps/kunstruct/hasher.go b/k8sdeps/kunstruct/hasher.go
index c3f22a35c..838c05d81 100644
--- a/k8sdeps/kunstruct/hasher.go
+++ b/k8sdeps/kunstruct/hasher.go
@@ -9,7 +9,7 @@ import (
 
 	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
-	"sigs.k8s.io/kustomize/v3/hasher"
+	"sigs.k8s.io/kustomize/v3/api/hasher"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
diff --git a/k8sdeps/kunstruct/unstructadapter.go b/k8sdeps/kunstruct/unstructadapter.go
index 85014e2c8..02a35abc5 100644
--- a/k8sdeps/kunstruct/unstructadapter.go
+++ b/k8sdeps/kunstruct/unstructadapter.go
@@ -16,7 +16,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/strategicpatch"
 	"k8s.io/client-go/kubernetes/scheme"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
@@ -45,9 +45,9 @@ func NewKunstructuredFromObject(obj runtime.Object) (ifc.Kunstructured, error) {
 }
 
 // GetGvk returns the Gvk name of the object.
-func (fs *UnstructAdapter) GetGvk() gvk.Gvk {
+func (fs *UnstructAdapter) GetGvk() resid.Gvk {
 	x := fs.GroupVersionKind()
-	return gvk.Gvk{
+	return resid.Gvk{
 		Group:   x.Group,
 		Version: x.Version,
 		Kind:    x.Kind,
@@ -55,7 +55,7 @@ func (fs *UnstructAdapter) GetGvk() gvk.Gvk {
 }
 
 // SetGvk set the Gvk of the object to the input Gvk
-func (fs *UnstructAdapter) SetGvk(g gvk.Gvk) {
+func (fs *UnstructAdapter) SetGvk(g resid.Gvk) {
 	fs.SetGroupVersionKind(toSchemaGvk(g))
 }
 
@@ -332,7 +332,7 @@ func (fs *UnstructAdapter) Patch(patch ifc.Kunstructured) error {
 }
 
 // toSchemaGvk converts to a schema.GroupVersionKind.
-func toSchemaGvk(x gvk.Gvk) schema.GroupVersionKind {
+func toSchemaGvk(x resid.Gvk) schema.GroupVersionKind {
 	return schema.GroupVersionKind{
 		Group:   x.Group,
 		Version: x.Version,
diff --git a/k8sdeps/transformer/patch/conflictdetector.go b/k8sdeps/transformer/patch/conflictdetector.go
index e5d9acf27..4ce9f718d 100644
--- a/k8sdeps/transformer/patch/conflictdetector.go
+++ b/k8sdeps/transformer/patch/conflictdetector.go
@@ -7,15 +7,14 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"k8s.io/apimachinery/pkg/runtime/schema"
-	"k8s.io/client-go/kubernetes/scheme"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
-	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-
-	"github.com/evanphx/json-patch"
+	jsonpatch "github.com/evanphx/json-patch"
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/mergepatch"
 	"k8s.io/apimachinery/pkg/util/strategicpatch"
+	"k8s.io/client-go/kubernetes/scheme"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 )
 
@@ -188,7 +187,7 @@ func MergePatches(patches []*resource.Resource,
 }
 
 // toSchemaGvk converts to a schema.GroupVersionKind.
-func toSchemaGvk(x gvk.Gvk) schema.GroupVersionKind {
+func toSchemaGvk(x resid.Gvk) schema.GroupVersionKind {
 	return schema.GroupVersionKind{
 		Group:   x.Group,
 		Version: x.Version,
diff --git a/kustomize/internal/commands/build/build.go b/kustomize/internal/commands/build/build.go
index 09fd01db1..78e085b56 100644
--- a/kustomize/internal/commands/build/build.go
+++ b/kustomize/internal/commands/build/build.go
@@ -10,7 +10,7 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
diff --git a/kustomize/internal/commands/commands.go b/kustomize/internal/commands/commands.go
index af57e397c..6605c50cd 100644
--- a/kustomize/internal/commands/commands.go
+++ b/kustomize/internal/commands/commands.go
@@ -14,7 +14,7 @@ import (
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/create"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/edit"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/version"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/transformer"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/validator"
diff --git a/kustomize/internal/commands/config/config.go b/kustomize/internal/commands/config/config.go
index c1a4284d2..c73ab3ba5 100644
--- a/kustomize/internal/commands/config/config.go
+++ b/kustomize/internal/commands/config/config.go
@@ -9,7 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config/defaultconfig"
 )
 
diff --git a/kustomize/internal/commands/config/config_test.go b/kustomize/internal/commands/config/config_test.go
index bf5939949..6e872d5be 100644
--- a/kustomize/internal/commands/config/config_test.go
+++ b/kustomize/internal/commands/config/config_test.go
@@ -9,7 +9,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestValidate(t *testing.T) {
diff --git a/kustomize/internal/commands/create/create.go b/kustomize/internal/commands/create/create.go
index 25452e8b5..73f12e8da 100644
--- a/kustomize/internal/commands/create/create.go
+++ b/kustomize/internal/commands/create/create.go
@@ -12,7 +12,7 @@ import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/util"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
 )
diff --git a/kustomize/internal/commands/create/create_test.go b/kustomize/internal/commands/create/create_test.go
index 81561d6f0..469a8194a 100644
--- a/kustomize/internal/commands/create/create_test.go
+++ b/kustomize/internal/commands/create/create_test.go
@@ -8,9 +8,9 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 var factory = kunstruct.NewKunstructuredFactoryImpl()
diff --git a/kustomize/internal/commands/edit/add/addbase.go b/kustomize/internal/commands/edit/add/addbase.go
index fc69e91a6..ab498e24d 100644
--- a/kustomize/internal/commands/edit/add/addbase.go
+++ b/kustomize/internal/commands/edit/add/addbase.go
@@ -10,7 +10,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 type addBaseOptions struct {
diff --git a/kustomize/internal/commands/edit/add/addbase_test.go b/kustomize/internal/commands/edit/add/addbase_test.go
index 672557976..1af5d3b5a 100644
--- a/kustomize/internal/commands/edit/add/addbase_test.go
+++ b/kustomize/internal/commands/edit/add/addbase_test.go
@@ -9,7 +9,7 @@ import (
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 const (
diff --git a/kustomize/internal/commands/edit/add/addmetadata.go b/kustomize/internal/commands/edit/add/addmetadata.go
index cd25f7592..c8985ce8b 100644
--- a/kustomize/internal/commands/edit/add/addmetadata.go
+++ b/kustomize/internal/commands/edit/add/addmetadata.go
@@ -9,9 +9,9 @@ import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/util"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // kindOfAdd is the kind of metadata being added: label or annotation
diff --git a/kustomize/internal/commands/edit/add/addmetadata_test.go b/kustomize/internal/commands/edit/add/addmetadata_test.go
index 5f4157795..446b3ff8f 100644
--- a/kustomize/internal/commands/edit/add/addmetadata_test.go
+++ b/kustomize/internal/commands/edit/add/addmetadata_test.go
@@ -8,9 +8,9 @@ import (
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func makeKustomization(t *testing.T) *types.Kustomization {
diff --git a/kustomize/internal/commands/edit/add/addpatch.go b/kustomize/internal/commands/edit/add/addpatch.go
index 00c8667f3..a6952484c 100644
--- a/kustomize/internal/commands/edit/add/addpatch.go
+++ b/kustomize/internal/commands/edit/add/addpatch.go
@@ -10,7 +10,7 @@ import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/util"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/patch"
 )
 
diff --git a/kustomize/internal/commands/edit/add/addpatch_test.go b/kustomize/internal/commands/edit/add/addpatch_test.go
index 3e58aba01..4bb39df03 100644
--- a/kustomize/internal/commands/edit/add/addpatch_test.go
+++ b/kustomize/internal/commands/edit/add/addpatch_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 const (
diff --git a/kustomize/internal/commands/edit/add/addresource.go b/kustomize/internal/commands/edit/add/addresource.go
index abdaa9ece..3e7b27ab6 100644
--- a/kustomize/internal/commands/edit/add/addresource.go
+++ b/kustomize/internal/commands/edit/add/addresource.go
@@ -10,7 +10,7 @@ import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/util"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 type addResourceOptions struct {
diff --git a/kustomize/internal/commands/edit/add/addresource_test.go b/kustomize/internal/commands/edit/add/addresource_test.go
index b5edf7093..f9aba9586 100644
--- a/kustomize/internal/commands/edit/add/addresource_test.go
+++ b/kustomize/internal/commands/edit/add/addresource_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 const (
diff --git a/kustomize/internal/commands/edit/add/all.go b/kustomize/internal/commands/edit/add/all.go
index b5d9cf256..03102a300 100644
--- a/kustomize/internal/commands/edit/add/all.go
+++ b/kustomize/internal/commands/edit/add/all.go
@@ -5,7 +5,7 @@ package add
 
 import (
 	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
diff --git a/kustomize/internal/commands/edit/add/configmap.go b/kustomize/internal/commands/edit/add/configmap.go
index ab1fd5bb8..e51a37ab8 100644
--- a/kustomize/internal/commands/edit/add/configmap.go
+++ b/kustomize/internal/commands/edit/add/configmap.go
@@ -6,9 +6,9 @@ package add
 import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // newCmdAddConfigMap returns a new command.
diff --git a/kustomize/internal/commands/edit/add/configmap_test.go b/kustomize/internal/commands/edit/add/configmap_test.go
index 090e4dfe2..c1397f462 100644
--- a/kustomize/internal/commands/edit/add/configmap_test.go
+++ b/kustomize/internal/commands/edit/add/configmap_test.go
@@ -6,11 +6,11 @@ package add
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func TestNewAddConfigMapIsNotNil(t *testing.T) {
diff --git a/kustomize/internal/commands/edit/add/flagsandargs.go b/kustomize/internal/commands/edit/add/flagsandargs.go
index 941ba1cd5..7d6e7afe9 100644
--- a/kustomize/internal/commands/edit/add/flagsandargs.go
+++ b/kustomize/internal/commands/edit/add/flagsandargs.go
@@ -8,7 +8,7 @@ import (
 	"strings"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/util"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 // flagsAndArgs encapsulates the options for add secret/configmap commands.
diff --git a/kustomize/internal/commands/edit/add/flagsandargs_test.go b/kustomize/internal/commands/edit/add/flagsandargs_test.go
index 369bc8d27..a971b59ff 100644
--- a/kustomize/internal/commands/edit/add/flagsandargs_test.go
+++ b/kustomize/internal/commands/edit/add/flagsandargs_test.go
@@ -7,7 +7,7 @@ import (
 	"reflect"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestDataValidation_NoName(t *testing.T) {
diff --git a/kustomize/internal/commands/edit/add/secret.go b/kustomize/internal/commands/edit/add/secret.go
index ff36eb578..1273b9745 100644
--- a/kustomize/internal/commands/edit/add/secret.go
+++ b/kustomize/internal/commands/edit/add/secret.go
@@ -6,9 +6,9 @@ package add
 import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // newCmdAddSecret returns a new command.
diff --git a/kustomize/internal/commands/edit/add/secret_test.go b/kustomize/internal/commands/edit/add/secret_test.go
index d70df7934..f21ccf075 100644
--- a/kustomize/internal/commands/edit/add/secret_test.go
+++ b/kustomize/internal/commands/edit/add/secret_test.go
@@ -6,12 +6,12 @@ package add
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/kv"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func TestNewCmdAddSecretIsNotNil(t *testing.T) {
diff --git a/kustomize/internal/commands/edit/all.go b/kustomize/internal/commands/edit/all.go
index 80b3bfc4e..5685e8b0e 100644
--- a/kustomize/internal/commands/edit/all.go
+++ b/kustomize/internal/commands/edit/all.go
@@ -9,8 +9,8 @@ import (
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/edit/fix"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/edit/remove"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/edit/set"
-	"sigs.k8s.io/kustomize/v3/filesys"
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/kv"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 )
diff --git a/kustomize/internal/commands/edit/fix/fix.go b/kustomize/internal/commands/edit/fix/fix.go
index d80eeb583..ab2ebd4fe 100644
--- a/kustomize/internal/commands/edit/fix/fix.go
+++ b/kustomize/internal/commands/edit/fix/fix.go
@@ -6,7 +6,7 @@ package fix
 import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 // NewCmdFix returns an instance of 'fix' subcommand.
diff --git a/kustomize/internal/commands/edit/fix/fix_test.go b/kustomize/internal/commands/edit/fix/fix_test.go
index fca7cb87d..cc93af23d 100644
--- a/kustomize/internal/commands/edit/fix/fix_test.go
+++ b/kustomize/internal/commands/edit/fix/fix_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestFix(t *testing.T) {
diff --git a/kustomize/internal/commands/edit/remove/all.go b/kustomize/internal/commands/edit/remove/all.go
index c05768e32..2b7efd482 100644
--- a/kustomize/internal/commands/edit/remove/all.go
+++ b/kustomize/internal/commands/edit/remove/all.go
@@ -5,7 +5,7 @@ package remove
 
 import (
 	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
diff --git a/kustomize/internal/commands/edit/remove/removemetadata.go b/kustomize/internal/commands/edit/remove/removemetadata.go
index 5ff2f9752..4d61e8b56 100644
--- a/kustomize/internal/commands/edit/remove/removemetadata.go
+++ b/kustomize/internal/commands/edit/remove/removemetadata.go
@@ -9,9 +9,9 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // kindOfAdd is the kind of metadata being added: label or annotation
diff --git a/kustomize/internal/commands/edit/remove/removemetadata_test.go b/kustomize/internal/commands/edit/remove/removemetadata_test.go
index c3de106f1..965118600 100644
--- a/kustomize/internal/commands/edit/remove/removemetadata_test.go
+++ b/kustomize/internal/commands/edit/remove/removemetadata_test.go
@@ -10,9 +10,9 @@ import (
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func makeKustomizationFS() filesys.FileSystem {
diff --git a/kustomize/internal/commands/edit/remove/removepatch.go b/kustomize/internal/commands/edit/remove/removepatch.go
index 925c7569c..9a561f3a8 100644
--- a/kustomize/internal/commands/edit/remove/removepatch.go
+++ b/kustomize/internal/commands/edit/remove/removepatch.go
@@ -10,7 +10,7 @@ import (
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/util"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/patch"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
 )
diff --git a/kustomize/internal/commands/edit/remove/removepatch_test.go b/kustomize/internal/commands/edit/remove/removepatch_test.go
index 60c095d76..2a48702f0 100644
--- a/kustomize/internal/commands/edit/remove/removepatch_test.go
+++ b/kustomize/internal/commands/edit/remove/removepatch_test.go
@@ -9,7 +9,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/patch"
 )
 
diff --git a/kustomize/internal/commands/edit/remove/removeresource.go b/kustomize/internal/commands/edit/remove/removeresource.go
index 67c6be1d4..e4f4cabb7 100644
--- a/kustomize/internal/commands/edit/remove/removeresource.go
+++ b/kustomize/internal/commands/edit/remove/removeresource.go
@@ -9,7 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
 )
 
diff --git a/kustomize/internal/commands/edit/remove/removeresource_test.go b/kustomize/internal/commands/edit/remove/removeresource_test.go
index 8af4df273..c77bedb42 100644
--- a/kustomize/internal/commands/edit/remove/removeresource_test.go
+++ b/kustomize/internal/commands/edit/remove/removeresource_test.go
@@ -10,7 +10,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestRemoveResources(t *testing.T) {
diff --git a/kustomize/internal/commands/edit/set/all.go b/kustomize/internal/commands/edit/set/all.go
index ed31084ea..7327f9684 100644
--- a/kustomize/internal/commands/edit/set/all.go
+++ b/kustomize/internal/commands/edit/set/all.go
@@ -5,7 +5,7 @@ package set
 
 import (
 	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
diff --git a/kustomize/internal/commands/edit/set/set_name_prefix.go b/kustomize/internal/commands/edit/set/set_name_prefix.go
index bbed17bd2..735de4c69 100644
--- a/kustomize/internal/commands/edit/set/set_name_prefix.go
+++ b/kustomize/internal/commands/edit/set/set_name_prefix.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 type setNamePrefixOptions struct {
diff --git a/kustomize/internal/commands/edit/set/set_name_prefix_test.go b/kustomize/internal/commands/edit/set/set_name_prefix_test.go
index 9f9cfb263..762e20c62 100644
--- a/kustomize/internal/commands/edit/set/set_name_prefix_test.go
+++ b/kustomize/internal/commands/edit/set/set_name_prefix_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 const (
diff --git a/kustomize/internal/commands/edit/set/set_name_suffix.go b/kustomize/internal/commands/edit/set/set_name_suffix.go
index 865397d65..db2901fa2 100644
--- a/kustomize/internal/commands/edit/set/set_name_suffix.go
+++ b/kustomize/internal/commands/edit/set/set_name_suffix.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 type setNameSuffixOptions struct {
diff --git a/kustomize/internal/commands/edit/set/set_name_suffix_test.go b/kustomize/internal/commands/edit/set/set_name_suffix_test.go
index 24bfe1616..4a3f76c72 100644
--- a/kustomize/internal/commands/edit/set/set_name_suffix_test.go
+++ b/kustomize/internal/commands/edit/set/set_name_suffix_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 const (
diff --git a/kustomize/internal/commands/edit/set/setimage.go b/kustomize/internal/commands/edit/set/setimage.go
index 0a7303b1a..0f0baa1e2 100644
--- a/kustomize/internal/commands/edit/set/setimage.go
+++ b/kustomize/internal/commands/edit/set/setimage.go
@@ -6,13 +6,13 @@ package set
 import (
 	"errors"
 	"regexp"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sort"
 	"strings"
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 type setImageOptions struct {
diff --git a/kustomize/internal/commands/edit/set/setimage_test.go b/kustomize/internal/commands/edit/set/setimage_test.go
index 00f49b4eb..e46a6793f 100644
--- a/kustomize/internal/commands/edit/set/setimage_test.go
+++ b/kustomize/internal/commands/edit/set/setimage_test.go
@@ -9,7 +9,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestSetImage(t *testing.T) {
diff --git a/kustomize/internal/commands/edit/set/setnamespace.go b/kustomize/internal/commands/edit/set/setnamespace.go
index 5ee96be4b..ee1c184fd 100644
--- a/kustomize/internal/commands/edit/set/setnamespace.go
+++ b/kustomize/internal/commands/edit/set/setnamespace.go
@@ -10,7 +10,7 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
diff --git a/kustomize/internal/commands/edit/set/setnamespace_test.go b/kustomize/internal/commands/edit/set/setnamespace_test.go
index b2aacc36d..81b75faad 100644
--- a/kustomize/internal/commands/edit/set/setnamespace_test.go
+++ b/kustomize/internal/commands/edit/set/setnamespace_test.go
@@ -9,7 +9,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
 )
 
diff --git a/kustomize/internal/commands/edit/set/setreplicas.go b/kustomize/internal/commands/edit/set/setreplicas.go
index e2ee4b364..279ee66cf 100644
--- a/kustomize/internal/commands/edit/set/setreplicas.go
+++ b/kustomize/internal/commands/edit/set/setreplicas.go
@@ -11,8 +11,8 @@ import (
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/kustfile"
-	"sigs.k8s.io/kustomize/v3/filesys"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 )
 
 type setReplicasOptions struct {
diff --git a/kustomize/internal/commands/edit/set/setreplicas_test.go b/kustomize/internal/commands/edit/set/setreplicas_test.go
index 255008e1d..e09bc3503 100644
--- a/kustomize/internal/commands/edit/set/setreplicas_test.go
+++ b/kustomize/internal/commands/edit/set/setreplicas_test.go
@@ -9,7 +9,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestSetReplicas(t *testing.T) {
diff --git a/kustomize/internal/commands/kustfile/kustomizationfile.go b/kustomize/internal/commands/kustfile/kustomizationfile.go
index 55e85168f..0dd2e4270 100644
--- a/kustomize/internal/commands/kustfile/kustomizationfile.go
+++ b/kustomize/internal/commands/kustfile/kustomizationfile.go
@@ -13,9 +13,9 @@ import (
 	"regexp"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/kustomize/internal/commands/kustfile/kustomizationfile_test.go b/kustomize/internal/commands/kustfile/kustomizationfile_test.go
index 05d3f3bcd..d1d67842b 100644
--- a/kustomize/internal/commands/kustfile/kustomizationfile_test.go
+++ b/kustomize/internal/commands/kustfile/kustomizationfile_test.go
@@ -10,9 +10,9 @@ import (
 
 	"sigs.k8s.io/kustomize/kustomize/v3/internal/commands/testutils"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func TestFieldOrder(t *testing.T) {
diff --git a/kustomize/internal/commands/testutils/testutils.go b/kustomize/internal/commands/testutils/testutils.go
index 8965eb1f8..5db8609a4 100644
--- a/kustomize/internal/commands/testutils/testutils.go
+++ b/kustomize/internal/commands/testutils/testutils.go
@@ -4,7 +4,7 @@
 package testutils
 
 import (
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
 )
 
diff --git a/kustomize/internal/commands/util/util.go b/kustomize/internal/commands/util/util.go
index 5732a9add..cc41b46eb 100644
--- a/kustomize/internal/commands/util/util.go
+++ b/kustomize/internal/commands/util/util.go
@@ -8,7 +8,7 @@ import (
 	"log"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 // GlobPatterns accepts a slice of glob strings and returns the set of
diff --git a/kustomize/internal/commands/version/version.go b/kustomize/internal/commands/version/version.go
index f4600ff3a..8fd247655 100644
--- a/kustomize/internal/commands/version/version.go
+++ b/kustomize/internal/commands/version/version.go
@@ -7,7 +7,7 @@ import (
 	"io"
 
 	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/v3/provenance"
+	"sigs.k8s.io/kustomize/v3/api/provenance"
 )
 
 // NewCmdVersion makes a new version command.
diff --git a/pkg/accumulator/resaccumulator.go b/pkg/accumulator/resaccumulator.go
index dc44a3052..5f378e14d 100644
--- a/pkg/accumulator/resaccumulator.go
+++ b/pkg/accumulator/resaccumulator.go
@@ -8,11 +8,11 @@ import (
 	"log"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // ResAccumulator accumulates resources and the rules
diff --git a/pkg/accumulator/resaccumulator_test.go b/pkg/accumulator/resaccumulator_test.go
index f4492ae44..52d432822 100644
--- a/pkg/accumulator/resaccumulator_test.go
+++ b/pkg/accumulator/resaccumulator_test.go
@@ -10,14 +10,14 @@ import (
 	"strings"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
 	. "sigs.k8s.io/kustomize/v3/pkg/accumulator"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resmaptest"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func makeResAccumulator(t *testing.T) (*ResAccumulator, *resource.Factory) {
@@ -75,13 +75,13 @@ func TestResolveVarsHappy(t *testing.T) {
 		{
 			Name: "SERVICE_ONE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendOne"},
 		},
 		{
 			Name: "SERVICE_TWO",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendTwo"},
 		},
 	})
@@ -104,13 +104,13 @@ func TestResolveVarsOneUnused(t *testing.T) {
 		{
 			Name: "SERVICE_ONE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendOne"},
 		},
 		{
 			Name: "SERVICE_UNUSED",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendTwo"},
 		},
 	})
@@ -165,7 +165,7 @@ func TestResolveVarsVarNeedsDisambiguation(t *testing.T) {
 		{
 			Name: "SERVICE_ONE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendOne",
 			},
 		},
@@ -204,7 +204,7 @@ func makeVarToNamepaceAndPath(
 	return types.Var{
 		Name: name,
 		ObjRef: types.Target{
-			Gvk:       gvk.Gvk{Version: "v1", Kind: "ConfigMap"},
+			Gvk:       resid.Gvk{Version: "v1", Kind: "ConfigMap"},
 			Name:      "environment",
 			Namespace: namespace,
 		},
@@ -266,7 +266,7 @@ func TestResolveVarsGoodResIdBadField(t *testing.T) {
 		{
 			Name: "SERVICE_ONE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendOne"},
 			FieldRef: types.FieldSelector{FieldPath: "nope_nope_nope"},
 		},
@@ -291,7 +291,7 @@ func TestResolveVarsUnmappableVar(t *testing.T) {
 		{
 			Name: "SERVICE_THREE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "doesNotExist"},
 		},
 	})
@@ -315,7 +315,7 @@ func TestResolveVarsWithNoambiguation(t *testing.T) {
 		{
 			Name: "SERVICE_ONE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendOne",
 			},
 		},
@@ -370,7 +370,7 @@ func TestResolveVarsWithNoambiguation(t *testing.T) {
 		{
 			Name: "SUB_SERVICE_ONE",
 			ObjRef: types.Target{
-				Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+				Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 				Name: "backendOne",
 			},
 		},
diff --git a/pkg/git/cloner.go b/pkg/git/cloner.go
index 23586ab83..0320748ef 100644
--- a/pkg/git/cloner.go
+++ b/pkg/git/cloner.go
@@ -9,7 +9,7 @@ import (
 	"os/exec"
 
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 // Cloner is a function that can clone a git repo.
diff --git a/pkg/git/repospec.go b/pkg/git/repospec.go
index fac4ebaa5..391e30e3d 100644
--- a/pkg/git/repospec.go
+++ b/pkg/git/repospec.go
@@ -9,7 +9,7 @@ import (
 	"regexp"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 // Used as a temporary non-empty occupant of the cloneDir
diff --git a/pkg/ifc/ifc.go b/pkg/ifc/ifc.go
index 2b802cf71..6292c9571 100644
--- a/pkg/ifc/ifc.go
+++ b/pkg/ifc/ifc.go
@@ -5,8 +5,8 @@
 package ifc
 
 import (
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 )
 
 // Validator provides functions to validate annotations and labels
@@ -55,8 +55,8 @@ type Kunstructured interface {
 	GetMap(path string) (map[string]interface{}, error)
 	MarshalJSON() ([]byte, error)
 	UnmarshalJSON([]byte) error
-	GetGvk() gvk.Gvk
-	SetGvk(gvk.Gvk)
+	GetGvk() resid.Gvk
+	SetGvk(resid.Gvk)
 	GetKind() string
 	GetName() string
 	SetName(string)
diff --git a/pkg/inventory/inventory.go b/pkg/inventory/inventory.go
index 4e76a3534..347b403cf 100644
--- a/pkg/inventory/inventory.go
+++ b/pkg/inventory/inventory.go
@@ -6,7 +6,7 @@ package inventory
 import (
 	"encoding/json"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 //Refs is a reference map.  Each key is the id
diff --git a/pkg/inventory/inventory_test.go b/pkg/inventory/inventory_test.go
index 37fc71e97..6f1700896 100644
--- a/pkg/inventory/inventory_test.go
+++ b/pkg/inventory/inventory_test.go
@@ -19,7 +19,7 @@ package inventory
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 func makeRefs() (Refs, Refs) {
diff --git a/pkg/loader/fileloader.go b/pkg/loader/fileloader.go
index db1fc88b0..897f4ef73 100644
--- a/pkg/loader/fileloader.go
+++ b/pkg/loader/fileloader.go
@@ -9,7 +9,7 @@ import (
 	"path/filepath"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/git"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
diff --git a/pkg/loader/fileloader_test.go b/pkg/loader/fileloader_test.go
index 87e654db6..cd5c5c4c6 100644
--- a/pkg/loader/fileloader_test.go
+++ b/pkg/loader/fileloader_test.go
@@ -25,7 +25,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/git"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
diff --git a/pkg/loader/loader.go b/pkg/loader/loader.go
index 4c4b1fe74..68b02c514 100644
--- a/pkg/loader/loader.go
+++ b/pkg/loader/loader.go
@@ -5,7 +5,7 @@
 package loader
 
 import (
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 	"sigs.k8s.io/kustomize/v3/pkg/git"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
diff --git a/pkg/loader/loadrestrictions.go b/pkg/loader/loadrestrictions.go
index 9794a15a4..bf002d523 100644
--- a/pkg/loader/loadrestrictions.go
+++ b/pkg/loader/loadrestrictions.go
@@ -7,7 +7,7 @@ import (
 	"fmt"
 
 	"github.com/spf13/pflag"
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 //go:generate stringer -type=loadRestrictions
diff --git a/pkg/loader/loadrestrictions_test.go b/pkg/loader/loadrestrictions_test.go
index 502a2ed5d..d142d2b24 100644
--- a/pkg/loader/loadrestrictions_test.go
+++ b/pkg/loader/loadrestrictions_test.go
@@ -20,7 +20,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
 )
 
 func TestRestrictionNone(t *testing.T) {
diff --git a/pkg/patch/strategicmerge.go b/pkg/patch/strategicmerge.go
index 8ef7d64df..e2c08dc2b 100644
--- a/pkg/patch/strategicmerge.go
+++ b/pkg/patch/strategicmerge.go
@@ -16,7 +16,7 @@ limitations under the License.
 
 package patch
 
-import "sigs.k8s.io/kustomize/v3/types"
+import "sigs.k8s.io/kustomize/v3/api/types"
 
 // Append appends a slice of patch paths to a PatchStrategicMerge slice
 func Append(patches []types.PatchStrategicMerge, paths ...string) []types.PatchStrategicMerge {
diff --git a/pkg/patch/strategicmerge_test.go b/pkg/patch/strategicmerge_test.go
index dbd3e33df..83e095252 100644
--- a/pkg/patch/strategicmerge_test.go
+++ b/pkg/patch/strategicmerge_test.go
@@ -6,7 +6,7 @@ package patch
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/types"
 )
 
 func buildPatchStrategicMergeSlice(patchStrings []string) []types.PatchStrategicMerge {
diff --git a/pkg/plugins/config.go b/pkg/plugins/config.go
index 9f847a7b2..fef0ac34c 100644
--- a/pkg/plugins/config.go
+++ b/pkg/plugins/config.go
@@ -10,8 +10,8 @@ import (
 	"runtime"
 
 	"github.com/spf13/pflag"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 const (
diff --git a/pkg/plugins/execplugin.go b/pkg/plugins/execplugin.go
index 15cbe1da1..f5ae3b9e4 100644
--- a/pkg/plugins/execplugin.go
+++ b/pkg/plugins/execplugin.go
@@ -13,9 +13,9 @@ import (
 	"strings"
 
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/pkg/plugins/execplugin_test.go b/pkg/plugins/execplugin_test.go
index 0b2722850..f62709988 100644
--- a/pkg/plugins/execplugin_test.go
+++ b/pkg/plugins/execplugin_test.go
@@ -8,12 +8,12 @@ import (
 	"strings"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func TestExecPluginConfig(t *testing.T) {
diff --git a/pkg/plugins/loader.go b/pkg/plugins/loader.go
index 50b4c24c3..46d33ccff 100644
--- a/pkg/plugins/loader.go
+++ b/pkg/plugins/loader.go
@@ -11,12 +11,11 @@ import (
 	"strings"
 
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 type Loader struct {
@@ -131,7 +130,7 @@ func (l *Loader) loadAndConfigurePlugin(
 	return c, nil
 }
 
-func (l *Loader) makeBuiltinPlugin(r gvk.Gvk) (resmap.Configurable, error) {
+func (l *Loader) makeBuiltinPlugin(r resid.Gvk) (resmap.Configurable, error) {
 	bpt := GetBuiltinPluginType(r.Kind)
 	if f, ok := GeneratorFactories[bpt]; ok {
 		return f(), nil
diff --git a/pkg/plugins/loader_test.go b/pkg/plugins/loader_test.go
index 727e4dc55..b2ff740ac 100644
--- a/pkg/plugins/loader_test.go
+++ b/pkg/plugins/loader_test.go
@@ -4,6 +4,7 @@
 package plugins_test
 
 import (
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 	"testing"
 
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
@@ -12,7 +13,6 @@ import (
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/pluglib"
 )
 
 const (
@@ -43,7 +43,7 @@ port: "12345"
 )
 
 func TestLoader(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
diff --git a/pkg/resmap/factory.go b/pkg/resmap/factory.go
index c81d962cb..131e9ef4a 100644
--- a/pkg/resmap/factory.go
+++ b/pkg/resmap/factory.go
@@ -5,10 +5,10 @@ package resmap
 
 import (
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/kusterr"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // Factory makes instances of ResMap.
diff --git a/pkg/resmap/factory_test.go b/pkg/resmap/factory_test.go
index 72b09ac06..ebfdfdb5f 100644
--- a/pkg/resmap/factory_test.go
+++ b/pkg/resmap/factory_test.go
@@ -6,18 +6,18 @@ package resmap_test
 import (
 	"encoding/base64"
 	"reflect"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
-	"sigs.k8s.io/kustomize/v3/kv"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	. "sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resmaptest"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func TestFromFile(t *testing.T) {
@@ -108,7 +108,7 @@ metadata:
 	}
 }
 
-var cmap = gvk.Gvk{Version: "v1", Kind: "ConfigMap"}
+var cmap = resid.Gvk{Version: "v1", Kind: "ConfigMap"}
 
 func TestNewFromConfigMaps(t *testing.T) {
 	type testCase struct {
diff --git a/pkg/resmap/idslice.go b/pkg/resmap/idslice.go
index c273250f8..b84f6df67 100644
--- a/pkg/resmap/idslice.go
+++ b/pkg/resmap/idslice.go
@@ -19,7 +19,7 @@ package resmap
 import (
 	"sort"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 // IdSlice implements the sort interface.
diff --git a/pkg/resmap/idslice_test.go b/pkg/resmap/idslice_test.go
index 015edf2fa..2d4258ffd 100644
--- a/pkg/resmap/idslice_test.go
+++ b/pkg/resmap/idslice_test.go
@@ -21,7 +21,7 @@ import (
 	"sort"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 func TestLess(t *testing.T) {
diff --git a/pkg/resmap/resmap.go b/pkg/resmap/resmap.go
index 2fda0c622..5e725a5e2 100644
--- a/pkg/resmap/resmap.go
+++ b/pkg/resmap/resmap.go
@@ -11,10 +11,10 @@ import (
 	"regexp"
 
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/pkg/resmap/resmap_test.go b/pkg/resmap/resmap_test.go
index a3617a4c1..0769be132 100644
--- a/pkg/resmap/resmap_test.go
+++ b/pkg/resmap/resmap_test.go
@@ -9,12 +9,12 @@ import (
 	"strings"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	. "sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resmaptest"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 var rf = resource.NewFactory(
diff --git a/pkg/resmap/selector_test.go b/pkg/resmap/selector_test.go
index 4dd3786bc..ffa8a522c 100644
--- a/pkg/resmap/selector_test.go
+++ b/pkg/resmap/selector_test.go
@@ -4,11 +4,11 @@
 package resmap_test
 
 import (
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func setupRMForPatchTargets(t *testing.T) resmap.ResMap {
@@ -81,7 +81,7 @@ func TestFindPatchTargets(t *testing.T) {
 		},
 		{
 			target: types.Selector{
-				Gvk: gvk.Gvk{
+				Gvk: resid.Gvk{
 					Kind: "Kind1",
 				},
 				Name: "name.*",
@@ -116,7 +116,7 @@ func TestFindPatchTargets(t *testing.T) {
 			target: types.Selector{
 				Namespace: "default",
 				Name:      "name.*",
-				Gvk: gvk.Gvk{
+				Gvk: resid.Gvk{
 					Kind: "Kind1",
 				},
 			},
diff --git a/pkg/resmaptest/rmbuilder.go b/pkg/resmaptest/rmbuilder.go
index 87ef5f231..6817abd55 100644
--- a/pkg/resmaptest/rmbuilder.go
+++ b/pkg/resmaptest/rmbuilder.go
@@ -6,7 +6,7 @@ package resmaptest_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 )
diff --git a/pkg/resource/factory.go b/pkg/resource/factory.go
index 1b5986840..e8c7284fd 100644
--- a/pkg/resource/factory.go
+++ b/pkg/resource/factory.go
@@ -9,9 +9,9 @@ import (
 	"log"
 	"strings"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/kusterr"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // Factory makes instances of Resource.
diff --git a/pkg/resource/factory_test.go b/pkg/resource/factory_test.go
index 8b0fdd478..a3b85f8d1 100644
--- a/pkg/resource/factory_test.go
+++ b/pkg/resource/factory_test.go
@@ -20,9 +20,9 @@ import (
 	"reflect"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
 	. "sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 func TestSliceFromPatches(t *testing.T) {
diff --git a/pkg/resource/resource.go b/pkg/resource/resource.go
index d012d054c..7fd4dcc48 100644
--- a/pkg/resource/resource.go
+++ b/pkg/resource/resource.go
@@ -8,9 +8,9 @@ import (
 	"reflect"
 	"strings"
 
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/pkg/resource/resource_test.go b/pkg/resource/resource_test.go
index 21a000acb..edee1ff48 100644
--- a/pkg/resource/resource_test.go
+++ b/pkg/resource/resource_test.go
@@ -20,11 +20,10 @@ import (
 	"reflect"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	. "sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 var factory = NewFactory(
@@ -99,11 +98,11 @@ func TestResourceId(t *testing.T) {
 		{
 			in: testConfigMap,
 			id: resid.NewResIdWithNamespace(
-				gvk.Gvk{Version: "v1", Kind: "ConfigMap"}, "winnie", "hundred-acre-wood"),
+				resid.Gvk{Version: "v1", Kind: "ConfigMap"}, "winnie", "hundred-acre-wood"),
 		},
 		{
 			in: testDeployment,
-			id: resid.NewResId(gvk.Gvk{Group: "apps", Version: "v1", Kind: "Deployment"}, "pooh"),
+			id: resid.NewResId(resid.Gvk{Group: "apps", Version: "v1", Kind: "Deployment"}, "pooh"),
 		},
 	}
 	for _, test := range tests {
@@ -122,12 +121,12 @@ func TestDeepCopy(t *testing.T) {
 				"name": "pooh",
 			},
 		})
-	r.AppendRefBy(resid.NewResId(gvk.Gvk{Group: "somegroup", Kind: "MyKind"}, "random"))
+	r.AppendRefBy(resid.NewResId(resid.Gvk{Group: "somegroup", Kind: "MyKind"}, "random"))
 
 	var1 := types.Var{
 		Name: "SERVICE_ONE",
 		ObjRef: types.Target{
-			Gvk:  gvk.Gvk{Version: "v1", Kind: "Service"},
+			Gvk:  resid.Gvk{Version: "v1", Kind: "Service"},
 			Name: "backendOne"},
 	}
 	r.AppendRefVarName(var1)
diff --git a/pkg/target/baseandoverlaymedium_test.go b/pkg/target/baseandoverlaymedium_test.go
index 383bee7ca..1a406e187 100644
--- a/pkg/target/baseandoverlaymedium_test.go
+++ b/pkg/target/baseandoverlaymedium_test.go
@@ -6,7 +6,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func writeMediumBase(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/baseandoverlaysmall_test.go b/pkg/target/baseandoverlaysmall_test.go
index 73d71c645..ab0ebcf1a 100644
--- a/pkg/target/baseandoverlaysmall_test.go
+++ b/pkg/target/baseandoverlaysmall_test.go
@@ -20,7 +20,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/plugins"
 )
diff --git a/pkg/target/basereusenameprefix_test.go b/pkg/target/basereusenameprefix_test.go
index 6b20662a7..68d0999ae 100644
--- a/pkg/target/basereusenameprefix_test.go
+++ b/pkg/target/basereusenameprefix_test.go
@@ -6,7 +6,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // Here is a structure of a kustomization of two components, component1
diff --git a/pkg/target/chartinflatorplugin_test.go b/pkg/target/chartinflatorplugin_test.go
index 35daa0e3b..2dddc7bb7 100644
--- a/pkg/target/chartinflatorplugin_test.go
+++ b/pkg/target/chartinflatorplugin_test.go
@@ -11,9 +11,7 @@ import (
 	"regexp"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // This is an example of using a helm chart as a base,
@@ -30,13 +28,13 @@ import (
 // TODO: Download and inflate the chart, and check that
 // in for the test.
 func TestChartInflatorPlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "ChartInflator")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 	th.WriteK("/app", `
 generators:
 - chartInflator.yaml
diff --git a/pkg/target/complexcomposition_test.go b/pkg/target/complexcomposition_test.go
index 669827842..6d175d5af 100644
--- a/pkg/target/complexcomposition_test.go
+++ b/pkg/target/complexcomposition_test.go
@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 const httpsService = `
@@ -303,7 +303,7 @@ func writePatchingTransformersRaw(th *kusttest_test.KustTestHarness) {
 // respect to the overlays, and avoids the need to relax load
 // restrictions on file paths reaching outside the `dev` and
 // `prod` kustomization roots.  I.e. with bases tests can use
-// NewKustTestHarness instead of NewKustTestNoLoadRestrictorHarness.
+// NewKustTestHarness instead of NewKustTestHarnessNoLoadRestrictor.
 //
 // Using transformer plugins from _bases_ means the plugin config
 // must be self-contained, i.e. the config may not have fields that
@@ -404,7 +404,7 @@ metadata:
 `
 
 func TestComplexComposition_Dev_SuccessWithRawTransformers(t *testing.T) {
-	th := kusttest_test.NewKustTestNoLoadRestrictorHarness(t, "/app/dev")
+	th := kusttest_test.NewKustTestHarnessNoLoadRestrictor(t, "/app/dev")
 	writeStatefulSetBase(th)
 	writePatchingTransformersRaw(th)
 	th.WriteK("/app/dev", `
@@ -513,7 +513,7 @@ metadata:
 `
 
 func TestComplexComposition_Prod_SuccessWithRawTransformers(t *testing.T) {
-	th := kusttest_test.NewKustTestNoLoadRestrictorHarness(t, "/app/prod")
+	th := kusttest_test.NewKustTestHarnessNoLoadRestrictor(t, "/app/prod")
 	writeStatefulSetBase(th)
 	writePatchingTransformersRaw(th)
 	th.WriteK("/app/prod", `
diff --git a/pkg/target/configmaps_test.go b/pkg/target/configmaps_test.go
index 3df0e9ae6..dad2bf4dd 100644
--- a/pkg/target/configmaps_test.go
+++ b/pkg/target/configmaps_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // Generate a Secret and a ConfigMap from the same data
diff --git a/pkg/target/crd_test.go b/pkg/target/crd_test.go
index fed98588f..1adcf56aa 100644
--- a/pkg/target/crd_test.go
+++ b/pkg/target/crd_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func writeBaseWithCrd(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/customconfig_test.go b/pkg/target/customconfig_test.go
index 8a6fd0cf1..fc4dcecf6 100644
--- a/pkg/target/customconfig_test.go
+++ b/pkg/target/customconfig_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func makeBaseReferencingCustomConfig(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/customconfigofbuiltinplugin_test.go b/pkg/target/customconfigofbuiltinplugin_test.go
index 8c5309be6..e1cb3c631 100644
--- a/pkg/target/customconfigofbuiltinplugin_test.go
+++ b/pkg/target/customconfigofbuiltinplugin_test.go
@@ -6,21 +6,20 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
-	"sigs.k8s.io/kustomize/v3/pluglib"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // Demo custom configuration of a builtin transformation.
 // This is a NamePrefixer that only touches Deployments
 // and Services.
 func TestCustomNamePrefixer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PrefixSuffixTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteK("/app", `
 resources:
@@ -103,7 +102,7 @@ metadata:
 
 // Demo custom configuration as a base.
 func TestReusableCustomNamePrefixer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -111,7 +110,7 @@ func TestReusableCustomNamePrefixer(t *testing.T) {
 	tc.BuildGoPlugin(
 		"builtin", "", "LabelTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app/foo")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/foo")
 
 	// This kustomization file contains resources that
 	// all happen to be plugin configurations. This makes
diff --git a/pkg/target/diamondcomposition_test.go b/pkg/target/diamondcomposition_test.go
index 8cbed2018..719e727c8 100644
--- a/pkg/target/diamondcomposition_test.go
+++ b/pkg/target/diamondcomposition_test.go
@@ -9,8 +9,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
-	"sigs.k8s.io/kustomize/v3/pluglib"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 const patchAddProbe = `
@@ -232,7 +231,7 @@ func definePatchDirStructure(th *kusttest_test.KustTestHarness) {
 
 // Fails due to file load restrictor.
 func TestIssue1251_Patches_ProdVsDev_Failure(t *testing.T) {
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app/prod")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/prod")
 	definePatchDirStructure(th)
 
 	th.WriteK("/app/prod", `
@@ -305,7 +304,7 @@ spec:
 // the kustomization root), opening the user to whatever
 // threat the load restrictor was meant to address.
 func TestIssue1251_Patches_ProdVsDev(t *testing.T) {
-	th := kusttest_test.NewKustTestNoLoadRestrictorHarness(t, "/app/prod")
+	th := kusttest_test.NewKustTestHarnessNoLoadRestrictor(t, "/app/prod")
 	definePatchDirStructure(th)
 
 	th.WriteK("/app/prod", `
@@ -321,7 +320,7 @@ patchesStrategicMerge:
 	}
 	th.AssertActualEqualsExpected(m, prodDevMergeResult1)
 
-	th = kusttest_test.NewKustTestNoLoadRestrictorHarness(t, "/app/dev")
+	th = kusttest_test.NewKustTestHarnessNoLoadRestrictor(t, "/app/dev")
 	definePatchDirStructure(th)
 
 	th.WriteK("/app/dev", `
@@ -340,13 +339,13 @@ patchesStrategicMerge:
 }
 
 func TestIssue1251_Plugins_ProdVsDev(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app/prod")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/prod")
 	defineTransformerDirStructure(th)
 	th.WriteK("/app/prod", `
 resources:
@@ -362,7 +361,7 @@ transformers:
 	}
 	th.AssertActualEqualsExpected(m, prodDevMergeResult1)
 
-	th = kusttest_test.NewKustTestPluginHarness(t, "/app/dev")
+	th = kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/dev")
 	defineTransformerDirStructure(th)
 	th.WriteK("/app/dev", `
 resources:
@@ -380,13 +379,13 @@ transformers:
 }
 
 func TestIssue1251_Plugins_Local(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app/composite")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/composite")
 	writeDeploymentBase(th)
 
 	writeJsonTransformerPluginConfig(
@@ -430,13 +429,13 @@ jsonOp: '%s'
 
 // Remote in the sense that they are bundled in a different kustomization.
 func TestIssue1251_Plugins_Bundled(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app/composite")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/composite")
 	writeDeploymentBase(th)
 
 	th.WriteK("/app/patches", `
diff --git a/pkg/target/diamonds_test.go b/pkg/target/diamonds_test.go
index 6e0d004da..ef0aab708 100644
--- a/pkg/target/diamonds_test.go
+++ b/pkg/target/diamonds_test.go
@@ -6,7 +6,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // Here's a structure of two kustomizations,
diff --git a/pkg/target/extendedpatch_test.go b/pkg/target/extendedpatch_test.go
index ed9760b3d..110fcdeaa 100644
--- a/pkg/target/extendedpatch_test.go
+++ b/pkg/target/extendedpatch_test.go
@@ -6,7 +6,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func makeCommonFileForExtendedPatchTest(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/generatormergeandreplace_test.go b/pkg/target/generatormergeandreplace_test.go
index a1751fe88..124c7b44b 100644
--- a/pkg/target/generatormergeandreplace_test.go
+++ b/pkg/target/generatormergeandreplace_test.go
@@ -20,7 +20,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestSimpleBase(t *testing.T) {
diff --git a/pkg/target/generatoroptions_test.go b/pkg/target/generatoroptions_test.go
index 8d8e09bd5..4ff16c2a7 100644
--- a/pkg/target/generatoroptions_test.go
+++ b/pkg/target/generatoroptions_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestSecretGenerator(t *testing.T) {
diff --git a/pkg/target/inlinepatch_test.go b/pkg/target/inlinepatch_test.go
index 7b8930e94..55803bba5 100644
--- a/pkg/target/inlinepatch_test.go
+++ b/pkg/target/inlinepatch_test.go
@@ -6,7 +6,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func makeResourcesForPatchTest(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/kusttarget.go b/pkg/target/kusttarget.go
index efe984f09..e500659d2 100644
--- a/pkg/target/kusttarget.go
+++ b/pkg/target/kusttarget.go
@@ -13,6 +13,7 @@ import (
 	"strings"
 
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/accumulator"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
@@ -21,7 +22,6 @@ import (
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
 	"sigs.k8s.io/kustomize/v3/plugin/builtin"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/pkg/target/kusttarget_configplugin.go b/pkg/target/kusttarget_configplugin.go
index 703fded34..9b3209375 100644
--- a/pkg/target/kusttarget_configplugin.go
+++ b/pkg/target/kusttarget_configplugin.go
@@ -4,10 +4,10 @@
 package target
 
 import (
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/plugins"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 // Functions dedicated to configuring the builtin
diff --git a/pkg/target/kusttarget_test.go b/pkg/target/kusttarget_test.go
index 632490d39..4d5058b0e 100644
--- a/pkg/target/kusttarget_test.go
+++ b/pkg/target/kusttarget_test.go
@@ -9,15 +9,15 @@ import (
 	"strings"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 	. "sigs.k8s.io/kustomize/v3/pkg/target"
 	"sigs.k8s.io/kustomize/v3/pkg/validators"
-	"sigs.k8s.io/kustomize/v3/types"
 )
 
 const (
@@ -281,7 +281,7 @@ var someVars = []types.Var{
 		Name: "AWARD",
 		ObjRef: types.Target{
 			APIVersion: "v7",
-			Gvk:        gvk.Gvk{Kind: "Service"},
+			Gvk:        resid.Gvk{Kind: "Service"},
 			Name:       "nobelPrize"},
 		FieldRef: types.FieldSelector{FieldPath: "some.arbitrary.path"},
 	},
@@ -289,21 +289,21 @@ var someVars = []types.Var{
 		Name: "BIRD",
 		ObjRef: types.Target{
 			APIVersion: "v300",
-			Gvk:        gvk.Gvk{Kind: "Service"},
+			Gvk:        resid.Gvk{Kind: "Service"},
 			Name:       "heron"},
 		FieldRef: types.FieldSelector{FieldPath: "metadata.name"},
 	},
 	{
 		Name: "FRUIT",
 		ObjRef: types.Target{
-			Gvk:  gvk.Gvk{Kind: "Service"},
+			Gvk:  resid.Gvk{Kind: "Service"},
 			Name: "apple"},
 		FieldRef: types.FieldSelector{FieldPath: "metadata.name"},
 	},
 	{
 		Name: "VEGETABLE",
 		ObjRef: types.Target{
-			Gvk:  gvk.Gvk{Kind: "Leafy"},
+			Gvk:  resid.Gvk{Kind: "Leafy"},
 			Name: "kale"},
 		FieldRef: types.FieldSelector{FieldPath: "metadata.name"},
 	},
diff --git a/pkg/target/multiplepatch_test.go b/pkg/target/multiplepatch_test.go
index 7c91262ce..e0efb6bb3 100644
--- a/pkg/target/multiplepatch_test.go
+++ b/pkg/target/multiplepatch_test.go
@@ -20,7 +20,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func makeCommonFileForMultiplePatchTest(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/namespacedgenerators_test.go b/pkg/target/namespacedgenerators_test.go
index 9d59d48ba..c831b5992 100644
--- a/pkg/target/namespacedgenerators_test.go
+++ b/pkg/target/namespacedgenerators_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestNamespacedGenerator(t *testing.T) {
diff --git a/pkg/target/namespaces_test.go b/pkg/target/namespaces_test.go
index 6cb5630c1..f82ddb28f 100644
--- a/pkg/target/namespaces_test.go
+++ b/pkg/target/namespaces_test.go
@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestNamespacedSecrets(t *testing.T) {
diff --git a/pkg/target/nullvalues_test.go b/pkg/target/nullvalues_test.go
index 09e4fee08..854a68238 100644
--- a/pkg/target/nullvalues_test.go
+++ b/pkg/target/nullvalues_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestNullValues(t *testing.T) {
diff --git a/pkg/target/plugindir_test.go b/pkg/target/plugindir_test.go
index 9afa37950..310638c8e 100644
--- a/pkg/target/plugindir_test.go
+++ b/pkg/target/plugindir_test.go
@@ -9,12 +9,10 @@ import (
 	"path/filepath"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/filesys"
+	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/transformer"
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
 	"sigs.k8s.io/kustomize/v3/pkg/loader"
 	"sigs.k8s.io/kustomize/v3/pkg/plugins"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
@@ -24,7 +22,7 @@ import (
 )
 
 func TestPluginDir(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
diff --git a/pkg/target/pruneconfigmap_test.go b/pkg/target/pruneconfigmap_test.go
index c96d02f92..4315d3ab9 100644
--- a/pkg/target/pruneconfigmap_test.go
+++ b/pkg/target/pruneconfigmap_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestPruneConfigMap(t *testing.T) {
diff --git a/pkg/target/resourceconflict_test.go b/pkg/target/resourceconflict_test.go
index f33218e6f..21feeb556 100644
--- a/pkg/target/resourceconflict_test.go
+++ b/pkg/target/resourceconflict_test.go
@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func writeBase(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/transformerplugin_test.go b/pkg/target/transformerplugin_test.go
index c0d81f61a..fa744b461 100644
--- a/pkg/target/transformerplugin_test.go
+++ b/pkg/target/transformerplugin_test.go
@@ -7,8 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
-	"sigs.k8s.io/kustomize/v3/pluglib"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func writeDeployment(th *kusttest_test.KustTestHarness, path string) {
@@ -50,7 +49,7 @@ metadata:
 }
 
 func TestOrderedTransformers(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -59,7 +58,7 @@ func TestOrderedTransformers(t *testing.T) {
 	tc.BuildGoPlugin(
 		"someteam.example.com", "v1", "DatePrefixer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 	th.WriteK("/app", `
 resources:
 - deployment.yaml
@@ -96,7 +95,7 @@ spec:
 }
 
 func TestPluginsNotEnabled(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -119,13 +118,13 @@ transformers:
 }
 
 func TestSedTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "SedTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 	th.WriteK("/app", `
 resources:
 - configmap.yaml
@@ -187,7 +186,7 @@ metadata:
 }
 
 func TestTransformedTransformers(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
@@ -196,7 +195,7 @@ func TestTransformedTransformers(t *testing.T) {
 	tc.BuildGoPlugin(
 		"someteam.example.com", "v1", "DatePrefixer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app/overlay")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app/overlay")
 
 	th.WriteK("/app/base", `
 resources:
diff --git a/pkg/target/transformersarrays_test.go b/pkg/target/transformersarrays_test.go
index b4c18b2b6..638a3e29d 100644
--- a/pkg/target/transformersarrays_test.go
+++ b/pkg/target/transformersarrays_test.go
@@ -6,7 +6,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func makeStatefulSetKustomization(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/transformersimage_test.go b/pkg/target/transformersimage_test.go
index a77f00d7f..94109a4d5 100644
--- a/pkg/target/transformersimage_test.go
+++ b/pkg/target/transformersimage_test.go
@@ -19,7 +19,7 @@ package target_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func makeTransfomersImageBase(th *kusttest_test.KustTestHarness) {
diff --git a/pkg/target/variableref_test.go b/pkg/target/variableref_test.go
index 22048e89f..89cd2b0dd 100644
--- a/pkg/target/variableref_test.go
+++ b/pkg/target/variableref_test.go
@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestBasicVariableRef(t *testing.T) {
diff --git a/pkg/transformers/config/factory_test.go b/pkg/transformers/config/factory_test.go
index 656c9ea05..491e6cad1 100644
--- a/pkg/transformers/config/factory_test.go
+++ b/pkg/transformers/config/factory_test.go
@@ -5,10 +5,10 @@ package config
 
 import (
 	"reflect"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
 
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
 func TestMakeDefaultConfig(t *testing.T) {
@@ -31,7 +31,7 @@ namePrefix:
 	expected := &TransformerConfig{
 		NamePrefix: []FieldSpec{
 			{
-				Gvk:  gvk.Gvk{Kind: "SomeKind"},
+				Gvk:  resid.Gvk{Kind: "SomeKind"},
 				Path: "nameprefix/path",
 			},
 		},
diff --git a/pkg/transformers/config/factorycrd.go b/pkg/transformers/config/factorycrd.go
index 248e1e799..a5daa3a2a 100644
--- a/pkg/transformers/config/factorycrd.go
+++ b/pkg/transformers/config/factorycrd.go
@@ -18,12 +18,12 @@ package config
 
 import (
 	"encoding/json"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"strings"
 
 	"github.com/go-openapi/spec"
 	"github.com/pkg/errors"
 	"k8s.io/kube-openapi/pkg/common"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 	"sigs.k8s.io/yaml"
 )
@@ -88,10 +88,10 @@ func makeConfigFromApiMap(m nameToApiMap) (*TransformerConfig, error) {
 // TODO: Get Group and Version for CRD from the
 // openAPI definition once
 // "x-kubernetes-group-version-kind" is available in CRD
-func makeGvkFromTypeName(n string) gvk.Gvk {
+func makeGvkFromTypeName(n string) resid.Gvk {
 	names := strings.Split(n, ".")
 	kind := names[len(names)-1]
-	return gvk.Gvk{Kind: kind}
+	return resid.Gvk{Kind: kind}
 }
 
 func looksLikeAk8sType(properties myProperties) bool {
@@ -133,7 +133,7 @@ const (
 
 // loadCrdIntoConfig loads a CRD spec into a TransformerConfig
 func loadCrdIntoConfig(
-	theConfig *TransformerConfig, theGvk gvk.Gvk, theMap nameToApiMap,
+	theConfig *TransformerConfig, theGvk resid.Gvk, theMap nameToApiMap,
 	typeName string, path []string) (err error) {
 	api, ok := theMap[typeName]
 	if !ok {
@@ -174,7 +174,7 @@ func loadCrdIntoConfig(
 				}
 				err = theConfig.AddNamereferenceFieldSpec(
 					NameBackReferences{
-						Gvk: gvk.Gvk{Kind: kind, Version: version},
+						Gvk: resid.Gvk{Kind: kind, Version: version},
 						FieldSpecs: []FieldSpec{
 							makeFs(theGvk, append(path, propName, nameKey))},
 					})
@@ -192,7 +192,7 @@ func loadCrdIntoConfig(
 	return nil
 }
 
-func makeFs(in gvk.Gvk, path []string) FieldSpec {
+func makeFs(in resid.Gvk, path []string) FieldSpec {
 	return FieldSpec{
 		CreateIfNotPresent: false,
 		Gvk:                in,
diff --git a/pkg/transformers/config/factorycrd_test.go b/pkg/transformers/config/factorycrd_test.go
index 17aaec9e9..7ab5e34e5 100644
--- a/pkg/transformers/config/factorycrd_test.go
+++ b/pkg/transformers/config/factorycrd_test.go
@@ -18,10 +18,10 @@ package config
 
 import (
 	"reflect"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
 
 	"sigs.k8s.io/kustomize/v3/internal/loadertest"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
 )
 
@@ -157,21 +157,21 @@ func makeLoader(t *testing.T) ifc.Loader {
 func TestLoadCRDs(t *testing.T) {
 	nbrs := []NameBackReferences{
 		{
-			Gvk: gvk.Gvk{Kind: "Secret", Version: "v1"},
+			Gvk: resid.Gvk{Kind: "Secret", Version: "v1"},
 			FieldSpecs: []FieldSpec{
 				{
 					CreateIfNotPresent: false,
-					Gvk:                gvk.Gvk{Kind: "MyKind"},
+					Gvk:                resid.Gvk{Kind: "MyKind"},
 					Path:               "spec/secretRef/name",
 				},
 			},
 		},
 		{
-			Gvk: gvk.Gvk{Kind: "Bee", Version: "v1beta1"},
+			Gvk: resid.Gvk{Kind: "Bee", Version: "v1beta1"},
 			FieldSpecs: []FieldSpec{
 				{
 					CreateIfNotPresent: false,
-					Gvk:                gvk.Gvk{Kind: "MyKind"},
+					Gvk:                resid.Gvk{Kind: "MyKind"},
 					Path:               "spec/beeRef/name",
 				},
 			},
diff --git a/pkg/transformers/config/fieldspec.go b/pkg/transformers/config/fieldspec.go
index e746f889a..2a88d3660 100644
--- a/pkg/transformers/config/fieldspec.go
+++ b/pkg/transformers/config/fieldspec.go
@@ -18,9 +18,8 @@ package config
 
 import (
 	"fmt"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"strings"
-
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
 // FieldSpec completely specifies a kustomizable field in
@@ -42,7 +41,7 @@ import (
 //   create: true
 // }
 type FieldSpec struct {
-	gvk.Gvk            `json:",inline,omitempty" yaml:",inline,omitempty"`
+	resid.Gvk          `json:",inline,omitempty" yaml:",inline,omitempty"`
 	Path               string `json:"path,omitempty" yaml:"path,omitempty"`
 	CreateIfNotPresent bool   `json:"create,omitempty" yaml:"create,omitempty"`
 }
diff --git a/pkg/transformers/config/fieldspec_test.go b/pkg/transformers/config/fieldspec_test.go
index a7029fb87..80d142b24 100644
--- a/pkg/transformers/config/fieldspec_test.go
+++ b/pkg/transformers/config/fieldspec_test.go
@@ -1,18 +1,5 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
 
 package config
 
@@ -22,7 +9,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 )
 
 func TestPathSlice(t *testing.T) {
@@ -61,19 +48,19 @@ var mergeTests = []struct {
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: false,
 			},
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "pear"},
+				Gvk:                resid.Gvk{Group: "pear"},
 				CreateIfNotPresent: false,
 			},
 		},
 		fsSlice{
 			{
 				Path:               "home",
-				Gvk:                gvk.Gvk{Group: "beans"},
+				Gvk:                resid.Gvk{Group: "beans"},
 				CreateIfNotPresent: false,
 			},
 		},
@@ -81,17 +68,17 @@ var mergeTests = []struct {
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: false,
 			},
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "pear"},
+				Gvk:                resid.Gvk{Group: "pear"},
 				CreateIfNotPresent: false,
 			},
 			{
 				Path:               "home",
-				Gvk:                gvk.Gvk{Group: "beans"},
+				Gvk:                resid.Gvk{Group: "beans"},
 				CreateIfNotPresent: false,
 			},
 		},
@@ -101,19 +88,19 @@ var mergeTests = []struct {
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: false,
 			},
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "pear"},
+				Gvk:                resid.Gvk{Group: "pear"},
 				CreateIfNotPresent: false,
 			},
 		},
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: false,
 			},
 		},
@@ -121,12 +108,12 @@ var mergeTests = []struct {
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: false,
 			},
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "pear"},
+				Gvk:                resid.Gvk{Group: "pear"},
 				CreateIfNotPresent: false,
 			},
 		},
@@ -136,19 +123,19 @@ var mergeTests = []struct {
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: false,
 			},
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "pear"},
+				Gvk:                resid.Gvk{Group: "pear"},
 				CreateIfNotPresent: false,
 			},
 		},
 		fsSlice{
 			{
 				Path:               "whatever",
-				Gvk:                gvk.Gvk{Group: "apple"},
+				Gvk:                resid.Gvk{Group: "apple"},
 				CreateIfNotPresent: true,
 			},
 		},
diff --git a/pkg/transformers/config/namebackreferences.go b/pkg/transformers/config/namebackreferences.go
index c27674bd4..13dd9dd9c 100644
--- a/pkg/transformers/config/namebackreferences.go
+++ b/pkg/transformers/config/namebackreferences.go
@@ -17,9 +17,8 @@ limitations under the License.
 package config
 
 import (
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"strings"
-
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
 // NameBackReferences is an association between a gvk.GVK and a list
@@ -51,7 +50,7 @@ import (
 //       (etc.)
 //   }
 type NameBackReferences struct {
-	gvk.Gvk    `json:",inline,omitempty" yaml:",inline,omitempty"`
+	resid.Gvk  `json:",inline,omitempty" yaml:",inline,omitempty"`
 	FieldSpecs fsSlice `json:"FieldSpecs,omitempty" yaml:"FieldSpecs,omitempty"`
 }
 
diff --git a/pkg/transformers/config/namebackreferences_test.go b/pkg/transformers/config/namebackreferences_test.go
index 5658ed396..0d0713642 100644
--- a/pkg/transformers/config/namebackreferences_test.go
+++ b/pkg/transformers/config/namebackreferences_test.go
@@ -18,22 +18,21 @@ package config
 
 import (
 	"reflect"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
-
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
 func TestMergeAll(t *testing.T) {
 	fsSlice1 := []FieldSpec{
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "Pod",
 			},
 			Path:               "path/to/a/name",
 			CreateIfNotPresent: false,
 		},
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "Deployment",
 			},
 			Path:               "another/path/to/some/name",
@@ -42,14 +41,14 @@ func TestMergeAll(t *testing.T) {
 	}
 	fsSlice2 := []FieldSpec{
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "Job",
 			},
 			Path:               "morepath/to/name",
 			CreateIfNotPresent: false,
 		},
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "StatefulSet",
 			},
 			Path:               "yet/another/path/to/a/name",
@@ -59,13 +58,13 @@ func TestMergeAll(t *testing.T) {
 
 	nbrsSlice1 := nbrSlice{
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
 			FieldSpecs: fsSlice1,
 		},
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
 			FieldSpecs: fsSlice2,
@@ -73,13 +72,13 @@ func TestMergeAll(t *testing.T) {
 	}
 	nbrsSlice2 := nbrSlice{
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
 			FieldSpecs: fsSlice1,
 		},
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
 			FieldSpecs: fsSlice2,
@@ -87,13 +86,13 @@ func TestMergeAll(t *testing.T) {
 	}
 	expected := nbrSlice{
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
 			FieldSpecs: fsSlice1,
 		},
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
 			FieldSpecs: fsSlice2,
diff --git a/pkg/transformers/config/transformerconfig_test.go b/pkg/transformers/config/transformerconfig_test.go
index 00e9ee497..b39bfdd43 100644
--- a/pkg/transformers/config/transformerconfig_test.go
+++ b/pkg/transformers/config/transformerconfig_test.go
@@ -17,23 +17,22 @@ limitations under the License.
 package config
 
 import (
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
 
 	"reflect"
-
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 )
 
 func TestAddNamereferenceFieldSpec(t *testing.T) {
 	cfg := &TransformerConfig{}
 
 	nbrs := NameBackReferences{
-		Gvk: gvk.Gvk{
+		Gvk: resid.Gvk{
 			Kind: "KindA",
 		},
 		FieldSpecs: []FieldSpec{
 			{
-				Gvk: gvk.Gvk{
+				Gvk: resid.Gvk{
 					Kind: "KindB",
 				},
 				Path:               "path/to/a/field",
@@ -55,7 +54,7 @@ func TestAddFieldSpecs(t *testing.T) {
 	cfg := &TransformerConfig{}
 
 	fieldSpec := FieldSpec{
-		Gvk:                gvk.Gvk{Group: "GroupA", Kind: "KindB"},
+		Gvk:                resid.Gvk{Group: "GroupA", Kind: "KindB"},
 		Path:               "path/to/a/field",
 		CreateIfNotPresent: true,
 	}
@@ -93,12 +92,12 @@ func TestAddFieldSpecs(t *testing.T) {
 func TestMerge(t *testing.T) {
 	nameReference := []NameBackReferences{
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "KindA",
 			},
 			FieldSpecs: []FieldSpec{
 				{
-					Gvk: gvk.Gvk{
+					Gvk: resid.Gvk{
 						Kind: "KindB",
 					},
 					Path:               "path/to/a/field",
@@ -107,12 +106,12 @@ func TestMerge(t *testing.T) {
 			},
 		},
 		{
-			Gvk: gvk.Gvk{
+			Gvk: resid.Gvk{
 				Kind: "KindA",
 			},
 			FieldSpecs: []FieldSpec{
 				{
-					Gvk: gvk.Gvk{
+					Gvk: resid.Gvk{
 						Kind: "KindC",
 					},
 					Path:               "path/to/a/field",
@@ -123,12 +122,12 @@ func TestMerge(t *testing.T) {
 	}
 	fieldSpecs := []FieldSpec{
 		{
-			Gvk:                gvk.Gvk{Group: "GroupA", Kind: "KindB"},
+			Gvk:                resid.Gvk{Group: "GroupA", Kind: "KindB"},
 			Path:               "path/to/a/field",
 			CreateIfNotPresent: true,
 		},
 		{
-			Gvk:                gvk.Gvk{Group: "GroupA", Kind: "KindC"},
+			Gvk:                resid.Gvk{Group: "GroupA", Kind: "KindC"},
 			Path:               "path/to/a/field",
 			CreateIfNotPresent: true,
 		},
diff --git a/pkg/transformers/namereference.go b/pkg/transformers/namereference.go
index e57d01f05..378701894 100644
--- a/pkg/transformers/namereference.go
+++ b/pkg/transformers/namereference.go
@@ -6,10 +6,10 @@ package transformers
 import (
 	"fmt"
 	"log"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
 )
@@ -115,7 +115,7 @@ func (o *nameReferenceTransformer) Transform(m resmap.ResMap) error {
 func (o *nameReferenceTransformer) selectReferral(
 	oldName string,
 	referrer *resource.Resource,
-	target gvk.Gvk,
+	target resid.Gvk,
 	referralCandidates resmap.ResMap,
 	referralCandidateSubset []*resource.Resource) (interface{}, interface{}, error) {
 
@@ -146,7 +146,7 @@ func (o *nameReferenceTransformer) selectReferral(
 func (o *nameReferenceTransformer) getSimpleNameField(
 	oldName string,
 	referrer *resource.Resource,
-	target gvk.Gvk,
+	target resid.Gvk,
 	referralCandidates resmap.ResMap,
 	referralCandidateSubset []*resource.Resource) (interface{}, error) {
 
@@ -161,7 +161,7 @@ func (o *nameReferenceTransformer) getSimpleNameField(
 func (o *nameReferenceTransformer) getNameAndNsStruct(
 	inMap map[string]interface{},
 	referrer *resource.Resource,
-	target gvk.Gvk,
+	target resid.Gvk,
 	referralCandidates resmap.ResMap) (interface{}, error) {
 
 	// Example:
@@ -209,7 +209,7 @@ func (o *nameReferenceTransformer) getNameAndNsStruct(
 
 func (o *nameReferenceTransformer) getNewNameFunc(
 	referrer *resource.Resource,
-	target gvk.Gvk,
+	target resid.Gvk,
 	referralCandidates resmap.ResMap) func(in interface{}) (interface{}, error) {
 	return func(in interface{}) (interface{}, error) {
 		switch in.(type) {
diff --git a/pkg/transformers/namereference_test.go b/pkg/transformers/namereference_test.go
index 0f87e75b6..264be3dce 100644
--- a/pkg/transformers/namereference_test.go
+++ b/pkg/transformers/namereference_test.go
@@ -7,9 +7,8 @@ import (
 	"strings"
 	"testing"
 
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resmaptest"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
@@ -877,9 +876,9 @@ func TestNameReferenceClusterWide(t *testing.T) {
 			}).ResMap()
 
 	clusterRoleId := resid.NewResId(
-		gvk.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRole"}, modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRole"}, modifiedname)
 	clusterRoleBindingId := resid.NewResId(
-		gvk.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRoleBinding"}, modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRoleBinding"}, modifiedname)
 	clusterRole, _ := expected.GetByCurrentId(clusterRoleId)
 	clusterRole.AppendRefBy(clusterRoleBindingId)
 
@@ -1005,9 +1004,9 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 			}).ResMap()
 
 	clusterRoleId := resid.NewResId(
-		gvk.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRole"}, modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRole"}, modifiedname)
 	clusterRoleBindingId := resid.NewResId(
-		gvk.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRoleBinding"}, modifiedname)
+		resid.Gvk{Group: "rbac.authorization.k8s.io", Version: "v1", Kind: "ClusterRoleBinding"}, modifiedname)
 	clusterRole, _ := expected.GetByCurrentId(clusterRoleId)
 	clusterRole.AppendRefBy(clusterRoleBindingId)
 
diff --git a/pkg/transformers/refvars_test.go b/pkg/transformers/refvars_test.go
index 0dc5e58a0..ce2e0f917 100644
--- a/pkg/transformers/refvars_test.go
+++ b/pkg/transformers/refvars_test.go
@@ -5,9 +5,9 @@ package transformers
 
 import (
 	"reflect"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resmaptest"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
@@ -38,11 +38,11 @@ func TestVarRef(t *testing.T) {
 					"BOO": true,
 				},
 				fs: []config.FieldSpec{
-					{Gvk: gvk.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/map"},
-					{Gvk: gvk.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/slice"},
-					{Gvk: gvk.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/interface"},
-					{Gvk: gvk.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/nil"},
-					{Gvk: gvk.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/num"},
+					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/map"},
+					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/slice"},
+					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/interface"},
+					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/nil"},
+					{Gvk: resid.Gvk{Version: "v1", Kind: "ConfigMap"}, Path: "data/num"},
 				},
 				res: resmaptest_test.NewRmBuilder(t, rf).
 					Add(map[string]interface{}{
diff --git a/plugin/builtin/ConfigMapGenerator.go b/plugin/builtin/ConfigMapGenerator.go
index 36297f56a..c8bbb6283 100644
--- a/plugin/builtin/ConfigMapGenerator.go
+++ b/plugin/builtin/ConfigMapGenerator.go
@@ -2,9 +2,9 @@
 package builtin
 
 import (
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/ImageTagTransformer.go b/plugin/builtin/ImageTagTransformer.go
index 3535090f7..9f13b891c 100644
--- a/plugin/builtin/ImageTagTransformer.go
+++ b/plugin/builtin/ImageTagTransformer.go
@@ -4,7 +4,7 @@ package builtin
 import (
 	"fmt"
 	"regexp"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"strings"
 
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
diff --git a/plugin/builtin/InventoryTransformer.go b/plugin/builtin/InventoryTransformer.go
index 69e20166d..3dbc38614 100644
--- a/plugin/builtin/InventoryTransformer.go
+++ b/plugin/builtin/InventoryTransformer.go
@@ -4,13 +4,13 @@ package builtin
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/hasher"
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/hasher"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/inventory"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/NamespaceTransformer.go b/plugin/builtin/NamespaceTransformer.go
index 9015cee50..adf01e381 100644
--- a/plugin/builtin/NamespaceTransformer.go
+++ b/plugin/builtin/NamespaceTransformer.go
@@ -4,12 +4,12 @@ package builtin
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/PatchJson6902Transformer.go b/plugin/builtin/PatchJson6902Transformer.go
index 2695a0036..d11d857c6 100644
--- a/plugin/builtin/PatchJson6902Transformer.go
+++ b/plugin/builtin/PatchJson6902Transformer.go
@@ -6,11 +6,10 @@ import (
 
 	"github.com/evanphx/json-patch"
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
@@ -70,7 +69,7 @@ func (p *PatchJson6902TransformerPlugin) Config(
 
 func (p *PatchJson6902TransformerPlugin) Transform(m resmap.ResMap) error {
 	id := resid.NewResIdWithNamespace(
-		gvk.Gvk{
+		resid.Gvk{
 			Group:   p.Target.Group,
 			Version: p.Target.Version,
 			Kind:    p.Target.Kind,
diff --git a/plugin/builtin/PatchStrategicMergeTransformer.go b/plugin/builtin/PatchStrategicMergeTransformer.go
index 6fb8d5dba..b5f4f81cf 100644
--- a/plugin/builtin/PatchStrategicMergeTransformer.go
+++ b/plugin/builtin/PatchStrategicMergeTransformer.go
@@ -4,9 +4,9 @@ package builtin
 import (
 	"fmt"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/PatchTransformer.go b/plugin/builtin/PatchTransformer.go
index a6639e844..97efc7dda 100644
--- a/plugin/builtin/PatchTransformer.go
+++ b/plugin/builtin/PatchTransformer.go
@@ -6,9 +6,9 @@ import (
 
 	"github.com/evanphx/json-patch"
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/PrefixSuffixTransformer.go b/plugin/builtin/PrefixSuffixTransformer.go
index b19dbca5d..af83bd6b0 100644
--- a/plugin/builtin/PrefixSuffixTransformer.go
+++ b/plugin/builtin/PrefixSuffixTransformer.go
@@ -5,8 +5,7 @@ import (
 	"errors"
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
@@ -23,10 +22,10 @@ type PrefixSuffixTransformerPlugin struct {
 // Not placed in a file yet due to lack of demand.
 var prefixSuffixFieldSpecsToSkip = []config.FieldSpec{
 	{
-		Gvk: gvk.Gvk{Kind: "CustomResourceDefinition"},
+		Gvk: resid.Gvk{Kind: "CustomResourceDefinition"},
 	},
 	{
-		Gvk: gvk.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"},
+		Gvk: resid.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"},
 	},
 }
 
diff --git a/plugin/builtin/ReplicaCountTransformer.go b/plugin/builtin/ReplicaCountTransformer.go
index ab1399b43..f05f263a2 100644
--- a/plugin/builtin/ReplicaCountTransformer.go
+++ b/plugin/builtin/ReplicaCountTransformer.go
@@ -4,11 +4,11 @@ package builtin
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/SecretGenerator.go b/plugin/builtin/SecretGenerator.go
index 25bff6b9f..b7cc79e74 100644
--- a/plugin/builtin/SecretGenerator.go
+++ b/plugin/builtin/SecretGenerator.go
@@ -2,9 +2,9 @@
 package builtin
 
 import (
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/annotationstransformer/AnnotationsTransformer_test.go b/plugin/builtin/annotationstransformer/AnnotationsTransformer_test.go
index ee8f6c5bb..4b5ce5990 100644
--- a/plugin/builtin/annotationstransformer/AnnotationsTransformer_test.go
+++ b/plugin/builtin/annotationstransformer/AnnotationsTransformer_test.go
@@ -6,18 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
-	"sigs.k8s.io/kustomize/v3/pluglib"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestAnnotationsTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "AnnotationsTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/configmapgenerator/ConfigMapGenerator.go b/plugin/builtin/configmapgenerator/ConfigMapGenerator.go
index 6b5909899..85687a22f 100644
--- a/plugin/builtin/configmapgenerator/ConfigMapGenerator.go
+++ b/plugin/builtin/configmapgenerator/ConfigMapGenerator.go
@@ -5,9 +5,9 @@
 package main
 
 import (
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/configmapgenerator/ConfigMapGenerator_test.go b/plugin/builtin/configmapgenerator/ConfigMapGenerator_test.go
index c59809976..6b1dace38 100644
--- a/plugin/builtin/configmapgenerator/ConfigMapGenerator_test.go
+++ b/plugin/builtin/configmapgenerator/ConfigMapGenerator_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestConfigMapGenerator(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ConfigMapGenerator")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/devops.env", `
 SERVICE_PORT=32
diff --git a/plugin/builtin/hashtransformer/HashTransformer_test.go b/plugin/builtin/hashtransformer/HashTransformer_test.go
index 5170c8b07..cbd760259 100644
--- a/plugin/builtin/hashtransformer/HashTransformer_test.go
+++ b/plugin/builtin/hashtransformer/HashTransformer_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestHashTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "HashTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/imagetagtransformer/ImageTagTransformer.go b/plugin/builtin/imagetagtransformer/ImageTagTransformer.go
index 780b197f8..d3e0c11be 100644
--- a/plugin/builtin/imagetagtransformer/ImageTagTransformer.go
+++ b/plugin/builtin/imagetagtransformer/ImageTagTransformer.go
@@ -7,7 +7,7 @@ package main
 import (
 	"fmt"
 	"regexp"
-	"sigs.k8s.io/kustomize/v3/types"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"strings"
 
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
diff --git a/plugin/builtin/imagetagtransformer/ImageTagTransformer_test.go b/plugin/builtin/imagetagtransformer/ImageTagTransformer_test.go
index 694b02095..b846d2b41 100644
--- a/plugin/builtin/imagetagtransformer/ImageTagTransformer_test.go
+++ b/plugin/builtin/imagetagtransformer/ImageTagTransformer_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestImageTagTransformerNewTag(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ImageTagTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -83,13 +81,13 @@ spec:
 `)
 }
 func TestImageTagTransformerNewImage(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ImageTagTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -155,13 +153,13 @@ spec:
 }
 
 func TestImageTagTransformerNewImageAndTag(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ImageTagTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -228,13 +226,13 @@ spec:
 }
 
 func TestImageTagTransformerNewDigest(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ImageTagTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -300,13 +298,13 @@ spec:
 }
 
 func TestImageTagTransformerNewImageAndDigest(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ImageTagTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/inventorytransformer/InventoryTransformer.go b/plugin/builtin/inventorytransformer/InventoryTransformer.go
index 7184e532c..b99d1aef7 100644
--- a/plugin/builtin/inventorytransformer/InventoryTransformer.go
+++ b/plugin/builtin/inventorytransformer/InventoryTransformer.go
@@ -7,13 +7,13 @@ package main
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/hasher"
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/hasher"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/inventory"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/inventorytransformer/InventoryTransformer_test.go b/plugin/builtin/inventorytransformer/InventoryTransformer_test.go
index 2413e6c8c..95943834b 100644
--- a/plugin/builtin/inventorytransformer/InventoryTransformer_test.go
+++ b/plugin/builtin/inventorytransformer/InventoryTransformer_test.go
@@ -6,9 +6,7 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 const (
@@ -60,13 +58,13 @@ metadata:
 )
 
 func TestInventoryTransformerCollect(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "InventoryTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -81,13 +79,13 @@ policy: GarbageCollect
 }
 
 func TestInventoryTransformerIgnore(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "InventoryTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -102,13 +100,13 @@ policy: GarbageIgnore
 }
 
 func TestInventoryTransformerDefaultPolicy(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "InventoryTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/labeltransformer/LabelTransformer_test.go b/plugin/builtin/labeltransformer/LabelTransformer_test.go
index 20ac41048..f8e4ad59c 100644
--- a/plugin/builtin/labeltransformer/LabelTransformer_test.go
+++ b/plugin/builtin/labeltransformer/LabelTransformer_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestLabelTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "LabelTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/legacyordertransformer/LegacyOrderTransformer_test.go b/plugin/builtin/legacyordertransformer/LegacyOrderTransformer_test.go
index eee196fdc..dc83522c0 100644
--- a/plugin/builtin/legacyordertransformer/LegacyOrderTransformer_test.go
+++ b/plugin/builtin/legacyordertransformer/LegacyOrderTransformer_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestLegacyOrderTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "LegacyOrderTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
 kind: LegacyOrderTransformer
diff --git a/plugin/builtin/namespacetransformer/NamespaceTransformer.go b/plugin/builtin/namespacetransformer/NamespaceTransformer.go
index 10895844c..ae4f2c832 100644
--- a/plugin/builtin/namespacetransformer/NamespaceTransformer.go
+++ b/plugin/builtin/namespacetransformer/NamespaceTransformer.go
@@ -7,12 +7,12 @@ package main
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/namespacetransformer/NamespaceTransformer_test.go b/plugin/builtin/namespacetransformer/NamespaceTransformer_test.go
index ab6a0fa3a..200dcfa8d 100644
--- a/plugin/builtin/namespacetransformer/NamespaceTransformer_test.go
+++ b/plugin/builtin/namespacetransformer/NamespaceTransformer_test.go
@@ -7,19 +7,17 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestNamespaceTransformer1(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "NamespaceTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -191,13 +189,13 @@ metadata:
 }
 
 func TestNamespaceTransformerClusterLevelKinds(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "NamespaceTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	const noChangeExpected = `
 apiVersion: v1
@@ -242,13 +240,13 @@ fieldSpecs:
 }
 
 func TestNamespaceTransformerObjectConflict(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "NamespaceTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	err := th.ErrorFromLoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer.go b/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer.go
index 675e07243..6513c1918 100644
--- a/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer.go
+++ b/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer.go
@@ -9,11 +9,10 @@ import (
 
 	"github.com/evanphx/json-patch"
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/ifc"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
@@ -76,7 +75,7 @@ func (p *plugin) Config(
 
 func (p *plugin) Transform(m resmap.ResMap) error {
 	id := resid.NewResIdWithNamespace(
-		gvk.Gvk{
+		resid.Gvk{
 			Group:   p.Target.Group,
 			Version: p.Target.Version,
 			Kind:    p.Target.Kind,
diff --git a/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer_test.go b/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer_test.go
index 5f374a66f..6c623a734 100644
--- a/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer_test.go
+++ b/plugin/builtin/patchjson6902transformer/PatchJson6902Transformer_test.go
@@ -7,9 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 const target = `
@@ -30,13 +28,13 @@ spec:
 `
 
 func TestPatchJson6902TransformerMissingFile(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -59,13 +57,13 @@ path: jsonpatch.json
 }
 
 func TestBadPatchJson6902Transformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -88,13 +86,13 @@ jsonOp: 'thisIsNotAPatch'
 }
 
 func TestBothEmptyJson6902Transformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -116,13 +114,13 @@ target:
 }
 
 func TestBothSpecifiedJson6902Transformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/jsonpatch.json", `[
 {"op": "replace", "path": "/spec/template/spec/containers/0/name", "value": "my-nginx"},
@@ -152,13 +150,13 @@ jsonOp: '[{"op": "add", "path": "/spec/template/spec/dnsPolicy", "value": "Clust
 }
 
 func TestPatchJson6902TransformerFromJsonFile(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/jsonpatch.json", `[
 {"op": "replace", "path": "/spec/template/spec/containers/0/name", "value": "my-nginx"},
@@ -202,13 +200,13 @@ spec:
 }
 
 func TestPatchJson6902TransformerFromYamlFile(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/jsonpatch.json", `
 - op: add
@@ -252,13 +250,13 @@ spec:
 }
 
 func TestPatchJson6902TransformerWithInlineJSON(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -293,13 +291,13 @@ spec:
 }
 
 func TestPatchJson6902TransformerWithInlineYAML(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchJson6902Transformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer.go b/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer.go
index 1178ee57b..948f9aabf 100644
--- a/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer.go
+++ b/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer.go
@@ -7,9 +7,9 @@ package main
 import (
 	"fmt"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer_test.go b/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer_test.go
index 9e052a0da..6fd17b71d 100644
--- a/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer_test.go
+++ b/plugin/builtin/patchstrategicmergetransformer/PatchStrategicMergeTransformer_test.go
@@ -8,9 +8,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 const (
@@ -60,12 +58,12 @@ spec:
 )
 
 func TestPatchStrategicMergeTransformerMissingFile(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -87,13 +85,13 @@ paths:
 }
 
 func TestBadPatchStrategicMergeTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -112,13 +110,13 @@ patches: 'thisIsNotAPatch'
 }
 
 func TestBothEmptyPatchStrategicMergeTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -135,13 +133,13 @@ metadata:
 }
 
 func TestPatchStrategicMergeTransformerFromFiles(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch.yaml", `
 apiVersion: apps/v1
@@ -185,13 +183,13 @@ spec:
 }
 
 func TestPatchStrategicMergeTransformerWithInlineJSON(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -220,13 +218,13 @@ spec:
 }
 
 func TestPatchStrategicMergeTransformerWithInlineYAML(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -272,13 +270,13 @@ spec:
 }
 
 func TestPatchStrategicMergeTransformerMultiplePatches(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch1.yaml", `
 apiVersion: apps/v1
@@ -349,13 +347,13 @@ spec:
 }
 
 func TestStrategicMergeTransformerMultiplePatchesWithConflicts(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch1.yaml", `
 apiVersion: apps/v1
@@ -410,13 +408,13 @@ paths:
 }
 
 func TestStrategicMergeTransformerWrongNamespace(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch.yaml", `
 apiVersion: apps/v1
@@ -453,13 +451,13 @@ paths:
 }
 
 func TestStrategicMergeTransformerNoSchema(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch.yaml", `
 apiVersion: example.com/v1
@@ -493,13 +491,13 @@ spec:
 }
 
 func TestStrategicMergeTransformerNoSchemaMultiPatches(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch1.yaml", `
 apiVersion: example.com/v1
@@ -549,13 +547,13 @@ spec:
 }
 
 func TestStrategicMergeTransformerNoSchemaMultiPatchesWithConflict(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch1.yaml", `
 apiVersion: example.com/v1
@@ -885,13 +883,13 @@ func TestSinglePatch(t *testing.T) {
 		},
 	}
 
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
 	for _, test := range tests {
-		th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
+		th := kusttest_test.NewKustTestHarnessAllowPlugins(t, fmt.Sprintf("/%s", test.name))
 		th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, 0), test.patch)
 
 		if test.errorExpected {
@@ -988,13 +986,13 @@ func TestMultiplePatches(t *testing.T) {
 		},
 	}
 
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
 	for _, test := range tests {
-		th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
+		th := kusttest_test.NewKustTestHarnessAllowPlugins(t, fmt.Sprintf("/%s", test.name))
 		for idx, patch := range test.patch {
 			th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, idx), patch)
 		}
@@ -1119,13 +1117,13 @@ func TestMultiplePatchesWithConflict(t *testing.T) {
 		},
 	}
 
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
 	for _, test := range tests {
-		th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
+		th := kusttest_test.NewKustTestHarnessAllowPlugins(t, fmt.Sprintf("/%s", test.name))
 		for idx, patch := range test.patch {
 			th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, idx), patch)
 		}
@@ -1228,13 +1226,13 @@ func TestMultipleNamespaces(t *testing.T) {
 		},
 	}
 
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
 	for _, test := range tests {
-		th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
+		th := kusttest_test.NewKustTestHarnessAllowPlugins(t, fmt.Sprintf("/%s", test.name))
 		for idx, patch := range test.patch {
 			th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, idx), patch)
 		}
@@ -1250,13 +1248,13 @@ func TestMultipleNamespaces(t *testing.T) {
 }
 
 func TestPatchStrategicMergeTransformerPatchDelete(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchStrategicMergeTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch.yaml", `
 apiVersion: apps/v1
diff --git a/plugin/builtin/patchtransformer/PatchTransformer.go b/plugin/builtin/patchtransformer/PatchTransformer.go
index 55c59ab61..ceab312f1 100644
--- a/plugin/builtin/patchtransformer/PatchTransformer.go
+++ b/plugin/builtin/patchtransformer/PatchTransformer.go
@@ -9,9 +9,9 @@ import (
 
 	"github.com/evanphx/json-patch"
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/resource"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/patchtransformer/PatchTransformer_test.go b/plugin/builtin/patchtransformer/PatchTransformer_test.go
index 78c7dda19..acc168c69 100644
--- a/plugin/builtin/patchtransformer/PatchTransformer_test.go
+++ b/plugin/builtin/patchtransformer/PatchTransformer_test.go
@@ -7,9 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 const (
@@ -67,12 +65,12 @@ spec:
 )
 
 func TestPatchTransformerMissingFile(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -91,12 +89,12 @@ path: patch.yaml
 }
 
 func TestPatchTransformerBadPatch(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -115,12 +113,12 @@ patch: "thisIsNotAPatch"
 }
 
 func TestPatchTransformerMissingSelector(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -139,13 +137,13 @@ patch: '[{"op": "add", "path": "/spec/template/spec/dnsPolicy", "value": "Cluste
 }
 
 func TestPatchTransformerBothEmptyPathAndPatch(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -162,13 +160,13 @@ metadata:
 }
 
 func TestPatchTransformerBothNonEmptyPathAndPatch(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	_, err := th.RunTransformer(`
 apiVersion: builtin
@@ -187,13 +185,13 @@ Patch: "something"
 }
 
 func TestPatchTransformerFromFiles(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/patch.yaml", `
 apiVersion: apps/v1
@@ -269,13 +267,13 @@ spec:
 }
 
 func TestPatchTransformerWithInline(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PatchTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer.go b/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer.go
index d8f3772ae..15d02b0ff 100644
--- a/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer.go
+++ b/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer.go
@@ -8,8 +8,7 @@ import (
 	"errors"
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/pkg/gvk"
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
@@ -29,10 +28,10 @@ var KustomizePlugin plugin
 // Not placed in a file yet due to lack of demand.
 var prefixSuffixFieldSpecsToSkip = []config.FieldSpec{
 	{
-		Gvk: gvk.Gvk{Kind: "CustomResourceDefinition"},
+		Gvk: resid.Gvk{Kind: "CustomResourceDefinition"},
 	},
 	{
-		Gvk: gvk.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"},
+		Gvk: resid.Gvk{Group: "apiregistration.k8s.io", Kind: "APIService"},
 	},
 }
 
diff --git a/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go b/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go
index 73eb48148..e831c83f3 100644
--- a/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go
+++ b/plugin/builtin/prefixsuffixtransformer/PrefixSuffixTransformer_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestPrefixSuffixTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "PrefixSuffixTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
 kind: PrefixSuffixTransformer
diff --git a/plugin/builtin/replicacounttransformer/ReplicaCountTransformer.go b/plugin/builtin/replicacounttransformer/ReplicaCountTransformer.go
index 4931c4252..98387ea74 100644
--- a/plugin/builtin/replicacounttransformer/ReplicaCountTransformer.go
+++ b/plugin/builtin/replicacounttransformer/ReplicaCountTransformer.go
@@ -7,11 +7,11 @@ package main
 import (
 	"fmt"
 
-	"sigs.k8s.io/kustomize/v3/pkg/resid"
+	"sigs.k8s.io/kustomize/v3/api/resid"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/replicacounttransformer/ReplicaCountTransformer_test.go b/plugin/builtin/replicacounttransformer/ReplicaCountTransformer_test.go
index 54cb7d0bc..9f6f08e38 100644
--- a/plugin/builtin/replicacounttransformer/ReplicaCountTransformer_test.go
+++ b/plugin/builtin/replicacounttransformer/ReplicaCountTransformer_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestReplicaCountTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "ReplicaCountTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -154,13 +152,13 @@ spec:
 }
 
 func TestMatchesCurrentID(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin("builtin", "", "PrefixSuffixTransformer")
 	tc.BuildGoPlugin("builtin", "", "ReplicaCountTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: builtin
@@ -200,12 +198,12 @@ spec:
 }
 
 func TestNoMatch(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin("builtin", "", "ReplicaCountTransformer")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	err := th.ErrorFromLoadAndRunTransformer(`
 apiVersion: builtin
diff --git a/plugin/builtin/secretgenerator/SecretGenerator.go b/plugin/builtin/secretgenerator/SecretGenerator.go
index 881a427ac..fcefb708b 100644
--- a/plugin/builtin/secretgenerator/SecretGenerator.go
+++ b/plugin/builtin/secretgenerator/SecretGenerator.go
@@ -5,9 +5,9 @@
 package main
 
 import (
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/builtin/secretgenerator/SecretGenerator_test.go b/plugin/builtin/secretgenerator/SecretGenerator_test.go
index 26da0a550..fa908a2dd 100644
--- a/plugin/builtin/secretgenerator/SecretGenerator_test.go
+++ b/plugin/builtin/secretgenerator/SecretGenerator_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestSecretGenerator(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"builtin", "", "SecretGenerator")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/a.env", `
 ROUTER_PASSWORD=admin
diff --git a/plugin/someteam.example.com/v1/bashedconfigmap/BashedConfigMap_test.go b/plugin/someteam.example.com/v1/bashedconfigmap/BashedConfigMap_test.go
index 581f1415c..e8abda110 100644
--- a/plugin/someteam.example.com/v1/bashedconfigmap/BashedConfigMap_test.go
+++ b/plugin/someteam.example.com/v1/bashedconfigmap/BashedConfigMap_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestBashedConfigMapPlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "BashedConfigMap")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/chartinflator/ChartInflator_test.go b/plugin/someteam.example.com/v1/chartinflator/ChartInflator_test.go
index 3b2b606d2..2e29d3c84 100644
--- a/plugin/someteam.example.com/v1/chartinflator/ChartInflator_test.go
+++ b/plugin/someteam.example.com/v1/chartinflator/ChartInflator_test.go
@@ -11,9 +11,7 @@ import (
 	"regexp"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // This test requires having the helm binary on the PATH.
@@ -21,13 +19,13 @@ import (
 // TODO: Download and inflate the chart, and check that
 // in for the test.
 func TestChartInflator(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "ChartInflator")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/dateprefixer/DatePrefixer_test.go b/plugin/someteam.example.com/v1/dateprefixer/DatePrefixer_test.go
index e398c2e62..929a4f9d2 100644
--- a/plugin/someteam.example.com/v1/dateprefixer/DatePrefixer_test.go
+++ b/plugin/someteam.example.com/v1/dateprefixer/DatePrefixer_test.go
@@ -6,18 +6,16 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestDatePrefixerPlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"someteam.example.com", "v1", "DatePrefixer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunTransformer(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/gogetter/GoGetter_test.go b/plugin/someteam.example.com/v1/gogetter/GoGetter_test.go
index 8ef780ce1..d876e47ee 100644
--- a/plugin/someteam.example.com/v1/gogetter/GoGetter_test.go
+++ b/plugin/someteam.example.com/v1/gogetter/GoGetter_test.go
@@ -10,21 +10,19 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 // This test requires having the go-getter binary on the PATH.
 //
 func TestGoGetter(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "GoGetter")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
@@ -46,13 +44,13 @@ metadata:
 }
 
 func TestGoGetterUrl(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "GoGetter")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
@@ -75,13 +73,13 @@ metadata:
 }
 
 func TestGoGetterCommand(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "GoGetter")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
@@ -104,13 +102,13 @@ metadata:
 }
 
 func TestGoGetterSubPath(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "GoGetter")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/printworkdir/PrintWorkDir_test.go b/plugin/someteam.example.com/v1/printworkdir/PrintWorkDir_test.go
index 6c4293ee1..6853c6696 100644
--- a/plugin/someteam.example.com/v1/printworkdir/PrintWorkDir_test.go
+++ b/plugin/someteam.example.com/v1/printworkdir/PrintWorkDir_test.go
@@ -7,9 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func shouldContain(t *testing.T, s []byte, x string) {
@@ -19,13 +17,13 @@ func shouldContain(t *testing.T, s []byte, x string) {
 }
 
 func TestPrintWorkDirPlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin(
 		"someteam.example.com", "v1", "PrintWorkDir")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/theAppRoot")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/theAppRoot")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase.go b/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase.go
index 08f250d43..3b1334cea 100644
--- a/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase.go
+++ b/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase.go
@@ -4,9 +4,9 @@
 package main
 
 import (
-	"sigs.k8s.io/kustomize/v3/kv"
+	"sigs.k8s.io/kustomize/v3/api/kv"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase_test.go b/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase_test.go
index 982b17fe1..b5ecfadbd 100644
--- a/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase_test.go
+++ b/plugin/someteam.example.com/v1/secretsfromdatabase/SecretsFromDatabase_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestSecretsFromDatabasePlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"someteam.example.com", "v1", "SecretsFromDatabase")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/sedtransformer/SedTransformer_test.go b/plugin/someteam.example.com/v1/sedtransformer/SedTransformer_test.go
index d741f84c7..b0cb52f4f 100644
--- a/plugin/someteam.example.com/v1/sedtransformer/SedTransformer_test.go
+++ b/plugin/someteam.example.com/v1/sedtransformer/SedTransformer_test.go
@@ -6,17 +6,15 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestSedTransformer(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin("someteam.example.com", "v1", "SedTransformer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	th.WriteF("/app/sed-input.txt", `
 s/$FRUIT/orange/g
diff --git a/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator.go b/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator.go
index 06d9a8dea..59d552ca6 100644
--- a/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator.go
+++ b/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator.go
@@ -7,8 +7,8 @@ import (
 	"bytes"
 	"text/template"
 
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator_test.go b/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator_test.go
index f9b8000e8..1de425aa0 100644
--- a/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator_test.go
+++ b/plugin/someteam.example.com/v1/someservicegenerator/SomeServiceGenerator_test.go
@@ -6,19 +6,17 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestSomeServiceGeneratorPlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"someteam.example.com", "v1", "SomeServiceGenerator")
 
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunGenerator(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer.go b/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer.go
index 493521721..378f7d775 100644
--- a/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer.go
+++ b/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer.go
@@ -5,10 +5,10 @@ package main
 
 import (
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/kustomize/v3/pkg/resmap"
 	"sigs.k8s.io/kustomize/v3/pkg/transformers/config"
 	"sigs.k8s.io/kustomize/v3/plugin/builtin"
-	"sigs.k8s.io/kustomize/v3/types"
 	"sigs.k8s.io/yaml"
 )
 
diff --git a/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer_test.go b/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer_test.go
index c954f88a4..8615c39d2 100644
--- a/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer_test.go
+++ b/plugin/someteam.example.com/v1/stringprefixer/StringPrefixer_test.go
@@ -6,18 +6,16 @@ package main_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestStringPrefixerPlugin(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildGoPlugin(
 		"someteam.example.com", "v1", "StringPrefixer")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	m := th.LoadAndRunTransformer(`
 apiVersion: someteam.example.com/v1
diff --git a/plugin/someteam.example.com/v1/validator/validator_test.go b/plugin/someteam.example.com/v1/validator/validator_test.go
index 02fbe2eb6..1ec6220c3 100644
--- a/plugin/someteam.example.com/v1/validator/validator_test.go
+++ b/plugin/someteam.example.com/v1/validator/validator_test.go
@@ -9,17 +9,15 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/pluglib"
-
-	"sigs.k8s.io/kustomize/v3/pkg/kusttest"
+	"sigs.k8s.io/kustomize/v3/api/kusttest"
 )
 
 func TestValidatorHappy(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin("someteam.example.com", "v1", "Validator")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	rm := th.LoadAndRunTransformer(`
 apiVersion: someteam.example.com/v1
@@ -50,11 +48,11 @@ metadata:
 }
 
 func TestValidatorUnHappy(t *testing.T) {
-	tc := pluglib.NewEnvForTest(t).Set()
+	tc := kusttest_test.NewPluginTestEnv(t).Set()
 	defer tc.Reset()
 
 	tc.BuildExecPlugin("someteam.example.com", "v1", "Validator")
-	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+	th := kusttest_test.NewKustTestHarnessAllowPlugins(t, "/app")
 
 	err := th.ErrorFromLoadAndRunTransformer(`
 apiVersion: someteam.example.com/v1