repeatbase_test.go

Documentation: sigs.k8s.io/kustomize/api/krusty

     1  // Copyright 2021 The Kubernetes Authors.
     2  // SPDX-License-Identifier: Apache-2.0
     3  
     4  package krusty_test
     5  
     6  import (
     7  	"strings"
     8  	"testing"
     9  
    10  	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
    11  )
    12  
    13  // This is broken since kustomize v3.9.3.
    14  // See https://github.com/kubernetes-sigs/kustomize/issues/3609 for details.
    15  
    16  // Here is a structure of a kustomization of one resource inheriting from
    17  // two bases. One of those bases is shared between the canary base and the
    18  // final resource. This is named canary as it is a simple pattern to
    19  // duplicate a resource that can be used with canary deployments.
    20  //
    21  // base
    22  // |    deployment.yaml
    23  // |    kustomization.yaml
    24  // canary
    25  // |    deployment-canary-patch.yaml
    26  // |    kustomization.yaml
    27  // mango
    28  // |    deployment-mango-patch.yaml
    29  // |    deployment-mango-canary-patch.yaml
    30  // |    kustomization.yaml
    31  func TestRepeatBase(t *testing.T) {
    32  	th := kusttest_test.MakeHarness(t)
    33  	th.WriteK("base", `
    34  resources:
    35    - deployment.yaml
    36  `)
    37  	th.WriteF("base/deployment.yaml", `
    38  ---
    39  apiVersion: apps/v1
    40  kind: Deployment
    41  metadata:
    42    name: banana
    43  spec:
    44    selector:
    45      matchLabels:
    46        component: banana
    47    template:
    48      metadata:
    49        labels:
    50          component: banana
    51      spec:
    52        containers:
    53        - name: banana
    54          image: image
    55  `)
    56  
    57  	th.WriteK("canary", `
    58  resources:
    59    - ../base
    60  patches:
    61  - patch: |
    62      - op: replace
    63        path: /metadata/name
    64        value: banana-canary
    65    target: 
    66      kind: Deployment
    67  - path: deployment-canary-patch.yaml
    68  `)
    69  	th.WriteF("canary/deployment-canary-patch.yaml", `
    70  ---
    71  apiVersion: apps/v1
    72  kind: Deployment
    73  metadata:
    74    name: banana-canary
    75    labels:
    76      type: canary
    77  spec:
    78    selector:
    79      matchLabels:
    80        component: banana
    81        type: canary
    82    template:
    83      metadata:
    84        labels:
    85          component: banana
    86          type: canary
    87      spec:
    88        containers:
    89        - name: banana
    90          image: image-canary
    91  `)
    92  
    93  	th.WriteK("mango", `
    94  nameSuffix: -mango
    95  resources:
    96    - ../base
    97    - ../canary
    98  patches:
    99  - path: deployment-mango-base-patch.yaml
   100  - path: deployment-mango-canary-patch.yaml
   101  `)
   102  	th.WriteF("mango/deployment-mango-base-patch.yaml", `
   103  ---
   104  apiVersion: apps/v1
   105  kind: Deployment
   106  metadata:
   107    name: banana
   108  spec:
   109    template:
   110      spec:
   111        containers:
   112        - name: banana
   113          image: image-mango
   114  `)
   115  	th.WriteF("mango/deployment-mango-canary-patch.yaml", `
   116  ---
   117  apiVersion: apps/v1
   118  kind: Deployment
   119  metadata:
   120    name: banana-canary
   121  spec:
   122    template:
   123      spec:
   124        containers:
   125        - name: banana
   126          image: image-canary-mango
   127  `)
   128  
   129  	err := th.RunWithErr("mango", th.MakeDefaultOptions())
   130  	if !strings.Contains(
   131  		err.Error(), "multiple matches for Id Deployment.v1.apps/banana.[noNs]; failed to find unique target for patch Deployment.v1.apps/banana.[noNs]") {
   132  		t.Fatalf("Unexpected err: %v", err)
   133  	}
   134  
   135  	// Uncomenting the following makes it work with kustomize v3.9.2 and bellow.
   136  
   137  	//  m := th.Run("/app", th.MakeDefaultOptions())
   138  	//	th.AssertActualEqualsExpected(m, `
   139  	//apiVersion: apps/v1
   140  	//kind: Deployment
   141  	//metadata:
   142  	//  name: deployment-a
   143  	//spec:
   144  	//  selector:
   145  	//    matchLabels:
   146  	//      component: deployment
   147  	//  template:
   148  	//    metadata:
   149  	//      labels:
   150  	//        component: deployment
   151  	//    spec:
   152  	//      containers:
   153  	//      - image: image-a
   154  	//        name: container-a
   155  	//---
   156  	//apiVersion: apps/v1
   157  	//kind: Deployment
   158  	//metadata:
   159  	//  labels:
   160  	//    type: canary
   161  	//  name: deployment-canary-a
   162  	//spec:
   163  	//  selector:
   164  	//    matchLabels:
   165  	//      component: deployment
   166  	//      type: canary
   167  	//  template:
   168  	//    metadata:
   169  	//      labels:
   170  	//        component: deployment
   171  	//    spec:
   172  	//      containers:
   173  	//      - image: image-canary-a
   174  	//        name: container-a
   175  	// `)
   176  }
   177
View as plain text