add suffix field to ResId

pkg/resid/resid.go

@@ -32,22 +32,46 @@ type ResId struct {
 	// an untransformed resource has no prefix, fully transformed resource has an arbitrary number of prefixes
 	// concatenated together.
 	prefix string
+	// nameSuffix of the resource
+	// an untransformed resource has no suffix, fully transformed resource has an arbitrary number of suffixes
+	// concatenated together.
+	suffix string
 	// namespace the resource belongs to
 	// an untransformed resource has no namespace, fully transformed resource has the namespace from
 	// the top most overlay
 	namespace string
 }
 
+// NewResIdWithPrefixSuffixNamespace creates new resource identifier with a prefix, suffix and a namespace
+func NewResIdWithPrefixSuffixNamespace(k gvk.Gvk, n, p, s, ns string) ResId {
+	return ResId{gvKind: k, name: n, prefix: p, suffix: s, namespace: ns}
+}
+
 // NewResIdWithPrefixNamespace creates new resource identifier with a prefix and a namespace
 func NewResIdWithPrefixNamespace(k gvk.Gvk, n, p, ns string) ResId {
 	return ResId{gvKind: k, name: n, prefix: p, namespace: ns}
 }
 
+// NewResIdWithSuffixNamespace creates new resource identifier with a suffix and a namespace
+func NewResIdWithSuffixNamespace(k gvk.Gvk, n, s, ns string) ResId {
+	return ResId{gvKind: k, name: n, suffix: s, namespace: ns}
+}
+
+// NewResIdWithPrefixSuffix creates new resource identifier with a prefix and suffix
+func NewResIdWithPrefixSuffix(k gvk.Gvk, n, p, s string) ResId {
+	return ResId{gvKind: k, name: n, prefix: p, suffix: s}
+}
+
 // NewResIdWithPrefix creates new resource identifier with a prefix
 func NewResIdWithPrefix(k gvk.Gvk, n, p string) ResId {
 	return ResId{gvKind: k, name: n, prefix: p}
 }
 
+// NewResIdWithSuffix creates new resource identifier with a suffix
+func NewResIdWithSuffix(k gvk.Gvk, n, s string) ResId {
+	return ResId{gvKind: k, name: n, suffix: s}
+}
+
 // NewResId creates new resource identifier
 func NewResId(k gvk.Gvk, n string) ResId {
 	return ResId{gvKind: k, name: n}
@@ -62,6 +86,7 @@ const (
 	noNamespace = "noNamespace"
 	noPrefix    = "noPrefix"
 	noName      = "noName"
+	noSuffix    = "noSuffix"
 	separator   = "|"
 )
 
@@ -79,9 +104,13 @@ func (n ResId) String() string {
 	if nm == "" {
 		nm = noName
 	}
+	s := n.suffix
+	if s == "" {
+		s = noSuffix
+	}
 
 	return strings.Join(
-		[]string{n.gvKind.String(), ns, p, nm}, separator)
+		[]string{n.gvKind.String(), ns, p, nm, s}, separator)
 }
 
 // GvknString of ResId based on GVK and name
@@ -90,7 +119,7 @@ func (n ResId) GvknString() string {
 }
 
 // GvknEquals return if two ResId have the same Group/Version/Kind and name
-// The comparison excludes prefix
+// The comparison excludes prefix and suffix
 func (n ResId) GvknEquals(id ResId) bool {
 	return n.gvKind.Equals(id.gvKind) && n.name == id.name
 }
@@ -110,6 +139,11 @@ func (n ResId) Prefix() string {
 	return n.prefix
 }
 
+// Suffix returns name suffix.
+func (n ResId) Suffix() string {
+	return n.suffix
+}
+
 // Namespace returns resource namespace.
 func (n ResId) Namespace() string {
 	return n.namespace
@@ -117,12 +151,17 @@ func (n ResId) Namespace() string {
 
 // CopyWithNewPrefix make a new copy from current ResId and append a new prefix
 func (n ResId) CopyWithNewPrefix(p string) ResId {
-	return ResId{gvKind: n.gvKind, name: n.name, prefix: n.concatPrefix(p), namespace: n.namespace}
+	return ResId{gvKind: n.gvKind, name: n.name, prefix: n.concatPrefix(p), suffix: n.suffix, namespace: n.namespace}
+}
+
+// CopyWithNewSuffix make a new copy from current ResId and append a new suffix
+func (n ResId) CopyWithNewSuffix(p string) ResId {
+	return ResId{gvKind: n.gvKind, name: n.name, prefix: n.prefix, suffix: n.concatSuffix(p), namespace: n.namespace}
 }
 
 // CopyWithNewNamespace make a new copy from current ResId and set a new namespace
 func (n ResId) CopyWithNewNamespace(ns string) ResId {
-	return ResId{gvKind: n.gvKind, name: n.name, prefix: n.prefix, namespace: ns}
+	return ResId{gvKind: n.gvKind, name: n.name, prefix: n.prefix, suffix: n.suffix, namespace: ns}
 }
 
 // HasSameLeftmostPrefix check if two ResIds have the same
@@ -133,6 +172,14 @@ func (n ResId) HasSameLeftmostPrefix(id ResId) bool {
 	return prefixes1[0] == prefixes2[0]
 }
 
+// HasSameRightmostSuffix check if two ResIds have the same
+// right most suffix.
+func (n ResId) HasSameRightmostSuffix(id ResId) bool {
+	suffixes1 := n.suffixList()
+	suffixes2 := id.suffixList()
+	return suffixes1[len(suffixes1)-1] == suffixes2[len(suffixes2)-1]
+}
+
 func (n ResId) concatPrefix(p string) string {
 	if p == "" {
 		return n.prefix
@@ -143,6 +190,20 @@ func (n ResId) concatPrefix(p string) string {
 	return p + ":" + n.prefix
 }
 
+func (n ResId) concatSuffix(s string) string {
+	if s == "" {
+		return n.suffix
+	}
+	if n.suffix == "" {
+		return s
+	}
+	return n.suffix + ":" + s
+}
+
 func (n ResId) prefixList() []string {
 	return strings.Split(n.prefix, ":")
 }
+
+func (n ResId) suffixList() []string {
+	return strings.Split(n.suffix, ":")
+}

pkg/resid/resid_test.go

@@ -11,27 +11,30 @@ var stringTests = []struct {
 	s string
 }{
 	{ResId{gvKind: gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
-		name: "nm", prefix: "p", namespace: "ns"},
-		"g_v_k|ns|p|nm"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
+		"g_v_k|ns|p|nm|s"},
 	{ResId{gvKind: gvk.Gvk{Version: "v", Kind: "k"},
-		name: "nm", prefix: "p", namespace: "ns"},
-		"noGroup_v_k|ns|p|nm"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
+		"noGroup_v_k|ns|p|nm|s"},
 	{ResId{gvKind: gvk.Gvk{Kind: "k"},
-		name: "nm", prefix: "p", namespace: "ns"},
-		"noGroup_noVersion_k|ns|p|nm"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
+		"noGroup_noVersion_k|ns|p|nm|s"},
 	{ResId{gvKind: gvk.Gvk{},
-		name: "nm", prefix: "p", namespace: "ns"},
-		"noGroup_noVersion_noKind|ns|p|nm"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
+		"noGroup_noVersion_noKind|ns|p|nm|s"},
 	{ResId{gvKind: gvk.Gvk{},
-		name: "nm", prefix: "p"},
-		"noGroup_noVersion_noKind|noNamespace|p|nm"},
+		name: "nm", prefix: "p", suffix: "s"},
+		"noGroup_noVersion_noKind|noNamespace|p|nm|s"},
 	{ResId{gvKind: gvk.Gvk{},
-		name: "nm"},
-		"noGroup_noVersion_noKind|noNamespace|noPrefix|nm"},
+		name: "nm", suffix: "s"},
+		"noGroup_noVersion_noKind|noNamespace|noPrefix|nm|s"},
+	{ResId{gvKind: gvk.Gvk{},
+		suffix: "s"},
+		"noGroup_noVersion_noKind|noNamespace|noPrefix|noName|s"},
 	{ResId{gvKind: gvk.Gvk{}},
-		"noGroup_noVersion_noKind|noNamespace|noPrefix|noName"},
+		"noGroup_noVersion_noKind|noNamespace|noPrefix|noName|noSuffix"},
 	{ResId{},
-		"noGroup_noVersion_noKind|noNamespace|noPrefix|noName"},
+		"noGroup_noVersion_noKind|noNamespace|noPrefix|noName|noSuffix"},
 }
 
 func TestString(t *testing.T) {
@@ -47,23 +50,26 @@ var gvknStringTests = []struct {
 	s string
 }{
 	{ResId{gvKind: gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
-		name: "nm", prefix: "p", namespace: "ns"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
 		"g_v_k|nm"},
 	{ResId{gvKind: gvk.Gvk{Version: "v", Kind: "k"},
-		name: "nm", prefix: "p", namespace: "ns"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
 		"noGroup_v_k|nm"},
 	{ResId{gvKind: gvk.Gvk{Kind: "k"},
-		name: "nm", prefix: "p", namespace: "ns"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
 		"noGroup_noVersion_k|nm"},
 	{ResId{gvKind: gvk.Gvk{},
-		name: "nm", prefix: "p", namespace: "ns"},
+		name: "nm", prefix: "p", suffix: "s", namespace: "ns"},
 		"noGroup_noVersion_noKind|nm"},
 	{ResId{gvKind: gvk.Gvk{},
-		name: "nm", prefix: "p"},
+		name: "nm", prefix: "p", suffix: "s"},
 		"noGroup_noVersion_noKind|nm"},
 	{ResId{gvKind: gvk.Gvk{},
-		name: "nm"},
+		name: "nm", suffix: "s"},
 		"noGroup_noVersion_noKind|nm"},
+	{ResId{gvKind: gvk.Gvk{},
+		suffix: "s"},
+		"noGroup_noVersion_noKind|"},
 	{ResId{gvKind: gvk.Gvk{}},
 		"noGroup_noVersion_noKind|"},
 	{ResId{},
@@ -83,19 +89,19 @@ var GvknEqualsTest = []struct {
 	x2 ResId
 }{
 	{ResId{gvKind: gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
-		name: "nm", prefix: "AA", namespace: "X"},
+		name: "nm", prefix: "AA", suffix: "aa", namespace: "X"},
 		ResId{gvKind: gvk.Gvk{Group: "g", Version: "v", Kind: "k"},
-			name: "nm", prefix: "BB", namespace: "Z"}},
+			name: "nm", prefix: "BB", suffix: "bb", namespace: "Z"}},
 	{ResId{gvKind: gvk.Gvk{Version: "v", Kind: "k"},
-		name: "nm", prefix: "AA", namespace: "X"},
+		name: "nm", prefix: "AA", suffix: "aa", namespace: "X"},
 		ResId{gvKind: gvk.Gvk{Version: "v", Kind: "k"},
-			name: "nm", prefix: "BB", namespace: "Z"}},
+			name: "nm", prefix: "BB", suffix: "bb", namespace: "Z"}},
 	{ResId{gvKind: gvk.Gvk{Kind: "k"},
-		name: "nm", prefix: "AA", namespace: "X"},
+		name: "nm", prefix: "AA", suffix: "aa", namespace: "X"},
 		ResId{gvKind: gvk.Gvk{Kind: "k"},
-			name: "nm", prefix: "BB", namespace: "Z"}},
-	{ResId{name: "nm", prefix: "AA", namespace: "X"},
-		ResId{name: "nm", prefix: "BB", namespace: "Z"}},
+			name: "nm", prefix: "BB", suffix: "bb", namespace: "Z"}},
+	{ResId{name: "nm", prefix: "AA", suffix: "aa", namespace: "X"},
+		ResId{name: "nm", prefix: "BB", suffix: "bb", namespace: "Z"}},
 }
 
 func TestEquals(t *testing.T) {

pkg/resmap/resmap.go

@@ -122,8 +122,8 @@ func (m ResMap) DeepCopy(rf *resource.Factory) ResMap {
 }
 
 // FilterBy returns a subset ResMap containing ResIds with
-// the same namespace and leftmost name prefix as the
-// inputId. If inputId is a cluster level resource, this
+// the same namespace and leftmost name prefix and rightmost name
+// as the inputId. If inputId is a cluster level resource, this
 // returns the original ResMap.
 func (m ResMap) FilterBy(inputId resid.ResId) ResMap {
 	if inputId.Gvk().IsClusterKind() {
@@ -131,7 +131,7 @@ func (m ResMap) FilterBy(inputId resid.ResId) ResMap {
 	}
 	result := ResMap{}
 	for id, res := range m {
-		if id.Namespace() == inputId.Namespace() && id.HasSameLeftmostPrefix(inputId) {
+		if id.Namespace() == inputId.Namespace() && id.HasSameLeftmostPrefix(inputId) && id.HasSameRightmostSuffix(inputId) {
 			result[id] = res
 		}
 	}

pkg/resmap/resmap_test.go

@@ -125,7 +125,7 @@ func TestFilterBy(t *testing.T) {
 		expected ResMap
 	}{
 		"different namespace": {
-			resMap: ResMap{resid.NewResIdWithPrefixNamespace(cmap, "config-map", "prefix", "namespace1"): rf.FromMap(
+			resMap: ResMap{resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map", "prefix", "suffix", "namespace1"): rf.FromMap(
 				map[string]interface{}{
 					"apiVersion": "v1",
 					"kind":       "ConfigMap",
@@ -134,11 +134,11 @@ func TestFilterBy(t *testing.T) {
 					},
 				}),
 			},
-			filter:   resid.NewResIdWithPrefixNamespace(cmap, "config-map", "prefix", "namespace2"),
+			filter:   resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map", "prefix", "suffix", "namespace2"),
 			expected: ResMap{},
 		},
 		"different prefix": {
-			resMap: ResMap{resid.NewResIdWithPrefixNamespace(cmap, "config-map", "prefix1", "namespace"): rf.FromMap(
+			resMap: ResMap{resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map", "prefix1", "suffix", "namespace"): rf.FromMap(
 				map[string]interface{}{
 					"apiVersion": "v1",
 					"kind":       "ConfigMap",
@@ -147,7 +147,20 @@ func TestFilterBy(t *testing.T) {
 					},
 				}),
 			},
-			filter:   resid.NewResIdWithPrefixNamespace(cmap, "config-map", "prefix2", "namespace"),
+			filter:   resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map", "prefix2", "suffix", "namespace"),
+			expected: ResMap{},
+		},
+		"different suffix": {
+			resMap: ResMap{resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map", "prefix", "suffix1", "namespace"): rf.FromMap(
+				map[string]interface{}{
+					"apiVersion": "v1",
+					"kind":       "ConfigMap",
+					"metadata": map[string]interface{}{
+						"name": "config-map",
+					},
+				}),
+			},
+			filter:   resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map", "prefix", "suffix2", "namespace"),
 			expected: ResMap{},
 		},
 		"same namespace, same prefix": {
@@ -171,6 +184,48 @@ func TestFilterBy(t *testing.T) {
 				}),
 			},
 		},
+		"same namespace, same suffix": {
+			resMap: ResMap{resid.NewResIdWithSuffixNamespace(cmap, "config-map1", "suffix", "namespace"): rf.FromMap(
+				map[string]interface{}{
+					"apiVersion": "v1",
+					"kind":       "ConfigMap",
+					"metadata": map[string]interface{}{
+						"name": "config-map1",
+					},
+				}),
+			},
+			filter: resid.NewResIdWithSuffixNamespace(cmap, "config-map2", "suffix", "namespace"),
+			expected: ResMap{resid.NewResIdWithSuffixNamespace(cmap, "config-map1", "suffix", "namespace"): rf.FromMap(
+				map[string]interface{}{
+					"apiVersion": "v1",
+					"kind":       "ConfigMap",
+					"metadata": map[string]interface{}{
+						"name": "config-map1",
+					},
+				}),
+			},
+		},
+		"same namespace, same prefix, same suffix": {
+			resMap: ResMap{resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map1", "prefix", "suffix", "namespace"): rf.FromMap(
+				map[string]interface{}{
+					"apiVersion": "v1",
+					"kind":       "ConfigMap",
+					"metadata": map[string]interface{}{
+						"name": "config-map",
+					},
+				}),
+			},
+			filter: resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map2", "prefix", "suffix", "namespace"),
+			expected: ResMap{resid.NewResIdWithPrefixSuffixNamespace(cmap, "config-map1", "prefix", "suffix", "namespace"): rf.FromMap(
+				map[string]interface{}{
+					"apiVersion": "v1",
+					"kind":       "ConfigMap",
+					"metadata": map[string]interface{}{
+						"name": "config-map",
+					},
+				}),
+			},
+		},
 		"filter by cluster-level Gvk": {
 			resMap: ResMap{resid.NewResIdWithPrefixNamespace(cmap, "config-map", "prefix", "namespace"): rf.FromMap(
 				map[string]interface{}{