mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-05-17 18:25:26 +00:00
343 lines
9.3 KiB
Go
343 lines
9.3 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package app
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import (
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"encoding/base64"
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"reflect"
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"testing"
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"github.com/kubernetes-sigs/kustomize/pkg/constants"
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"github.com/kubernetes-sigs/kustomize/pkg/fs"
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"github.com/kubernetes-sigs/kustomize/pkg/internal/loadertest"
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"github.com/kubernetes-sigs/kustomize/pkg/loader"
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"github.com/kubernetes-sigs/kustomize/pkg/resmap"
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"github.com/kubernetes-sigs/kustomize/pkg/resource"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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const (
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kustomizationContent1 = `
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namePrefix: foo-
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namespace: ns1
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commonLabels:
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app: nginx
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commonAnnotations:
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note: This is a test annotation
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resources:
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- deployment.yaml
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- namespace.yaml
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configMapGenerator:
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- name: literalConfigMap
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literals:
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- DB_USERNAME=admin
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- DB_PASSWORD=somepw
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secretGenerator:
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- name: secret
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commands:
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DB_USERNAME: "printf admin"
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DB_PASSWORD: "printf somepw"
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type: Opaque
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`
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deploymentContent = `apiVersion: apps/v1
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metadata:
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name: dply1
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kind: Deployment
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`
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namespaceContent = `apiVersion: v1
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kind: Namespace
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metadata:
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name: ns1
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`
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)
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func makeLoader1(t *testing.T) loader.Loader {
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ldr := loadertest.NewFakeLoader("/testpath")
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err := ldr.AddFile("/testpath/"+constants.KustomizationFileName, []byte(kustomizationContent1))
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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err = ldr.AddFile("/testpath/deployment.yaml", []byte(deploymentContent))
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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err = ldr.AddFile("/testpath/namespace.yaml", []byte(namespaceContent))
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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return ldr
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}
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var deploy = schema.GroupVersionKind{Group: "apps", Version: "v1", Kind: "Deployment"}
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var cmap = schema.GroupVersionKind{Version: "v1", Kind: "ConfigMap"}
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var secret = schema.GroupVersionKind{Version: "v1", Kind: "Secret"}
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var ns = schema.GroupVersionKind{Version: "v1", Kind: "Namespace"}
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var svc = schema.GroupVersionKind{Version: "v1", Kind: "Service"}
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func TestResources1(t *testing.T) {
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expected := resmap.ResMap{
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resource.NewResIdWithPrefix(deploy, "dply1", "foo-"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "apps/v1",
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"kind": "Deployment",
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"metadata": map[string]interface{}{
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"name": "foo-dply1",
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"namespace": "ns1",
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"labels": map[string]interface{}{
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"app": "nginx",
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},
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"annotations": map[string]interface{}{
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"note": "This is a test annotation",
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},
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},
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"spec": map[string]interface{}{
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"selector": map[string]interface{}{
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"matchLabels": map[string]interface{}{
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"app": "nginx",
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},
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},
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"template": map[string]interface{}{
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"metadata": map[string]interface{}{
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"annotations": map[string]interface{}{
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"note": "This is a test annotation",
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},
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"labels": map[string]interface{}{
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"app": "nginx",
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},
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},
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},
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},
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}),
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resource.NewResIdWithPrefix(cmap, "literalConfigMap", "foo-"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "v1",
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"kind": "ConfigMap",
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"metadata": map[string]interface{}{
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"name": "foo-literalConfigMap-mc92bgcbh5",
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"namespace": "ns1",
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"labels": map[string]interface{}{
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"app": "nginx",
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},
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"annotations": map[string]interface{}{
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"note": "This is a test annotation",
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},
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"creationTimestamp": nil,
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},
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"data": map[string]interface{}{
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"DB_USERNAME": "admin",
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"DB_PASSWORD": "somepw",
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},
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}).SetBehavior(resource.BehaviorCreate),
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resource.NewResIdWithPrefix(secret, "secret", "foo-"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "v1",
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"kind": "Secret",
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"metadata": map[string]interface{}{
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"name": "foo-secret-877fcfhgt5",
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"namespace": "ns1",
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"labels": map[string]interface{}{
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"app": "nginx",
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},
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"annotations": map[string]interface{}{
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"note": "This is a test annotation",
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},
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"creationTimestamp": nil,
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},
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"type": string(corev1.SecretTypeOpaque),
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"data": map[string]interface{}{
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"DB_USERNAME": base64.StdEncoding.EncodeToString([]byte("admin")),
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"DB_PASSWORD": base64.StdEncoding.EncodeToString([]byte("somepw")),
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},
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}).SetBehavior(resource.BehaviorCreate),
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resource.NewResIdWithPrefix(ns, "ns1", "foo-"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "v1",
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"kind": "Namespace",
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"metadata": map[string]interface{}{
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"name": "foo-ns1",
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"labels": map[string]interface{}{
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"app": "nginx",
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},
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"annotations": map[string]interface{}{
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"note": "This is a test annotation",
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},
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},
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}),
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}
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l := makeLoader1(t)
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fakeFs := fs.MakeFakeFS()
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fakeFs.Mkdir("/")
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app, err := NewApplication(l, fakeFs)
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if err != nil {
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t.Fatalf("Unexpected construction error %v", err)
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}
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actual, err := app.MakeCustomizedResMap()
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if err != nil {
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t.Fatalf("Unexpected Resources error %v", err)
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}
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if !reflect.DeepEqual(actual, expected) {
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err = expected.ErrorIfNotEqual(actual)
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t.Fatalf("unexpected inequality: %v", err)
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}
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}
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func TestRawResources1(t *testing.T) {
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expected := resmap.ResMap{
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resource.NewResId(deploy, "dply1"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "apps/v1",
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"kind": "Deployment",
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"metadata": map[string]interface{}{
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"name": "dply1",
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},
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}),
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resource.NewResId(ns, "ns1"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "v1",
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"kind": "Namespace",
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"metadata": map[string]interface{}{
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"name": "ns1",
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},
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}),
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}
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l := makeLoader1(t)
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app, err := NewApplication(l, fs.MakeFakeFS())
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if err != nil {
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t.Fatalf("Unexpected construction error %v", err)
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}
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actual, err := app.MakeUncustomizedResMap()
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if err != nil {
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t.Fatalf("Unexpected RawResources error %v", err)
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}
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if err := expected.ErrorIfNotEqual(actual); err != nil {
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t.Fatalf("unexpected inequality: %v", err)
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}
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}
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const (
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kustomizationContentBase = `
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namePrefix: foo-
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commonLabels:
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app: banana
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resources:
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- deployment.yaml
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`
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kustomizationContentOverlay = `
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commonLabels:
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env: staging
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resources:
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- service.yaml
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bases:
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- base
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`
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serviceContent = `apiVersion: v1
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kind: Service
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metadata:
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name: svc
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spec:
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type: LoadBalancer
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`
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)
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func makeLoader2(t *testing.T) loader.Loader {
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ldr := loadertest.NewFakeLoader("/testpath")
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err := ldr.AddFile("/testpath/"+constants.KustomizationFileName, []byte(kustomizationContentOverlay))
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if err != nil {
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t.Fatal(err)
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}
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err = ldr.AddFile("/testpath/service.yaml", []byte(serviceContent))
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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err = ldr.AddDirectory("/testpath/base")
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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err = ldr.AddFile("/testpath/base/"+constants.KustomizationFileName, []byte(kustomizationContentBase))
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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err = ldr.AddFile("/testpath/base/deployment.yaml", []byte(deploymentContent))
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if err != nil {
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t.Fatalf("Failed to setup fake ldr.")
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}
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return ldr
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}
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// TODO: This test covers incorrect behavior; it should not pass.
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// It asks for raw resources. The Service resource is returned in raw form,
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// but the resources in the base are modified to have the banana label,
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// the 'foo' name prefix, etc. This method exists only to support the
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// diff command comparing customized to non-customized resources;
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// perhaps it's not worth supporting the command.
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func TestRawResources2(t *testing.T) {
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expected := resmap.ResMap{
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resource.NewResIdWithPrefix(deploy, "dply1", "foo-"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "apps/v1",
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"kind": "Deployment",
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"metadata": map[string]interface{}{
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"name": "foo-dply1",
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"labels": map[string]interface{}{
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"app": "banana",
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},
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},
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"spec": map[string]interface{}{
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"selector": map[string]interface{}{
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"matchLabels": map[string]interface{}{
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"app": "banana",
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},
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},
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"template": map[string]interface{}{
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"metadata": map[string]interface{}{
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"labels": map[string]interface{}{
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"app": "banana",
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},
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},
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},
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},
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}),
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resource.NewResId(svc, "svc"): resource.NewResourceFromMap(
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map[string]interface{}{
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"apiVersion": "v1",
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"kind": "Service",
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"metadata": map[string]interface{}{
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"name": "svc",
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},
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"spec": map[string]interface{}{
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"type": "LoadBalancer",
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},
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}),
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}
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l := makeLoader2(t)
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app, err := NewApplication(l, fs.MakeFakeFS())
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if err != nil {
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t.Fatalf("Unexpected construction error %v", err)
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}
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actual, err := app.MakeUncustomizedResMap()
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if err != nil {
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t.Fatalf("Unexpected RawResources error %v", err)
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}
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if err := expected.ErrorIfNotEqual(actual); err != nil {
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t.Fatalf("unexpected inequality: %v", err)
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}
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}
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