Merge pull request #5745 from isarns/master

Add Annotation to Control Inline List Conversion in Kustomize Resources"

api/krusty/no_list_items_test.go

@@ -0,0 +1,228 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+// test for https://github.com/kubernetes-sigs/kustomize/issues/4240
+func TestSuffix5042(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK(".", `
+resources:
+- resource.yaml
+`)
+
+	th.WriteF("resource.yaml", `
+apiVersion: example.com/v1alpha1
+kind: MyResource
+metadata:
+  name: service
+---
+apiVersion: example.com/v1alpha1
+kind: MyResourceTwo
+metadata:
+  name: test
+rules: []
+`)
+	m := th.Run(".", th.MakeDefaultOptions())
+
+	th.AssertActualEqualsExpected(m, `
+apiVersion: example.com/v1alpha1
+kind: MyResource
+metadata:
+  name: service
+---
+apiVersion: example.com/v1alpha1
+kind: MyResourceTwo
+metadata:
+  name: test
+rules: []
+`)
+}
+
+func TestListSuffix5042(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK(".", `
+resources:
+- resource.yaml
+`)
+
+	th.WriteF("resource.yaml", `
+apiVersion: example.com/v1alpha1
+kind: MyResource
+metadata:
+  name: service
+---
+apiVersion: example.com/v1alpha1
+kind: MyResourceList
+metadata:
+  name: test
+rules: []
+`)
+	m := th.Run(".", th.MakeDefaultOptions())
+
+	th.AssertActualEqualsExpected(m, `
+apiVersion: example.com/v1alpha1
+kind: MyResource
+metadata:
+  name: service
+---
+apiVersion: example.com/v1alpha1
+kind: MyResourceList
+metadata:
+  name: test
+rules: []
+`)
+}
+
+func TestListSuffix5485(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK(".", `
+resources:
+- resource.yaml
+  `)
+
+	th.WriteF("resource.yaml", `
+apiVersion: infra.protonbase.io/v1alpha1
+kind: AccessWhiteList
+metadata:
+  name: wlmls5769f
+  namespace: dc7i4hyxzw
+spec:
+  rules:
+  - sourceIps: 0.0.0.0/16
+`)
+
+	m := th.Run(".", th.MakeDefaultOptions())
+
+	th.AssertActualEqualsExpected(m, `
+apiVersion: infra.protonbase.io/v1alpha1
+kind: AccessWhiteList
+metadata:
+  name: wlmls5769f
+  namespace: dc7i4hyxzw
+spec:
+  rules:
+  - sourceIps: 0.0.0.0/16
+`)
+}
+
+func TestListToIndividualResources(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK(".", `
+resources:
+- list.yaml
+`)
+
+	th.WriteF("list.yaml", `
+apiVersion: v1
+kind: PodList
+items:
+  - apiVersion: v1
+    kind: Pod
+    metadata:
+      name: my-pod-1
+      namespace: default
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - name: my-container
+          image: nginx:1.19.10
+          ports:
+            - containerPort: 80
+  - apiVersion: v1
+    kind: Pod
+    metadata:
+      name: my-pod-2
+      namespace: default
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - name: my-container
+          image: nginx:1.19.10
+          ports:
+            - containerPort: 80
+  - apiVersion: v1
+    kind: Pod
+    metadata:
+      name: my-pod-3
+      namespace: default
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - name: my-container
+          image: nginx:1.19.10
+          ports:
+            - containerPort: 80
+`)
+
+	m := th.Run(".", th.MakeDefaultOptions())
+
+	th.AssertActualEqualsExpected(m, `
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: my-app
+  name: my-pod-1
+  namespace: default
+spec:
+  containers:
+  - image: nginx:1.19.10
+    name: my-container
+    ports:
+    - containerPort: 80
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: my-app
+  name: my-pod-2
+  namespace: default
+spec:
+  containers:
+  - image: nginx:1.19.10
+    name: my-container
+    ports:
+    - containerPort: 80
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: my-app
+  name: my-pod-3
+  namespace: default
+spec:
+  containers:
+  - image: nginx:1.19.10
+    name: my-container
+    ports:
+    - containerPort: 80
+`)
+}
+
+// Empty list should result in no resources
+func TestEmptyList(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK(".", `
+resources:
+- emptyList.yaml
+`)
+	th.WriteF("emptyList.yaml", `
+apiVersion: v1
+kind: PodList
+items: []
+`)
+	m := th.Run(".", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, "")
+}

api/resource/factory.go

@@ -202,7 +202,10 @@ func (rf *Factory) inlineAnyEmbeddedLists(
 		}
 		items, ok := m["items"]
 		if !ok {
-			// treat as an empty list
+			// Items field is not present.
+			// This is not a collections resource.
+			// read more https://kubernetes.io/docs/reference/using-api/api-concepts/#collections
+			result = append(result, n0)
 			continue
 		}
 		slice, ok := items.([]interface{})

api/resource/factory_test.go

@@ -301,6 +301,17 @@ kind: List
 		t.Fatalf("failed to create new instance with %v: %v", deploymentB, errB)
 	}
 
+	deploymentNoItems := "deployment-no-items"
+	testDeploymentNoItems, errNoItems := factory.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "List",
+		},
+	)
+	if errNoItems != nil {
+		t.Fatalf("failed to create new instance with %v: %v", deploymentNoItems, testDeploymentNoItems)
+	}
+
 	fSys := filesys.MakeFsInMemory()
 	fSys.WriteFile(string(patchGood1), []byte(patch1))
 	fSys.WriteFile(string(patchGood2), []byte(patch2))
@@ -363,7 +374,7 @@ kind: List
 		},
 		"listWithNoItems": {
 			input:       []types.PatchStrategicMerge{patchList4},
-			expectedOut: []*Resource{},
+			expectedOut: []*Resource{testDeploymentNoItems},
 			expectedErr: false,
 		},
 	}

go.work.sum

@@ -232,6 +232,7 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumC
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954 h1:RMLoZVzv4GliuWafOuPuQDKSm1SJph7uCRnnS61JAn4=
 github.com/dimchansky/utfbom v1.1.1/go.mod h1:SxdoEBH5qIqFocHMyGOXVAybYJdr71b1Q/j0mACtrfE=
 github.com/djherbis/atime v1.1.0/go.mod h1:28OF6Y8s3NQWwacXc5eZTsEsiMzp7LF8MbXE+XJPdBE=
+github.com/dnaeon/go-vcr v1.2.0/go.mod h1:R4UdLID7HZT3taECzJs4YgbbH6PIGXB6W/sc5OLb6RQ=
 github.com/docker/docker v0.7.3-0.20190327010347-be7ac8be2ae0 h1:w3NnFcKR5241cfmQU5ZZAsf0xcpId6mWOupTvJlUX2U=
 github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
 github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96 h1:cenwrSVm+Z7QLSV/BsnenAOcDXdX4cMv4wP0B/5QbPg=
@@ -275,6 +276,7 @@ github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/goccy/go-json v0.9.11/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/golang-jwt/jwt v3.2.1+incompatible h1:73Z+4BJcrTC+KczS6WvTPvRGOp1WmfEP4Q1lOd9Z/+c=
 github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
+github.com/golang-jwt/jwt/v4 v4.5.0/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v1.1.0/go.mod h1:pfYeQZ3JWZoXTV5sFc986z3HTpwQs9At6P4ImfuP3NQ=
 github.com/golang/mock v1.4.4 h1:l75CXGRSwbaYNpl/Z2X1XIIAMSCquvXgpVZDhwEIJsc=
@@ -528,6 +530,7 @@ golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.16.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
+golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/oauth2 v0.5.0/go.mod h1:9/XBHVqLaWO3/BRHs5jbpYCnOZVjj5V0ndyaAM7KB4I=
 golang.org/x/oauth2 v0.8.0/go.mod h1:yr7u4HXZRm1R1kBWqr/xKNqewf0plRYoB7sla+BCIXE=
 golang.org/x/oauth2 v0.10.0/go.mod h1:kTpgurOux7LqtuxjuyZa4Gj2gdezIt/jQtGnNFfypQI=
@@ -548,7 +551,9 @@ golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/telemetry v0.0.0-20240208230135-b75ee8823808/go.mod h1:KG1lNk5ZFNssSZLrpVb4sMXKMpGwGXOxSG3rnu2gZQQ=
+golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20220526004731-065cf7ba2467/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=