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https://github.com/kubernetes-sigs/kustomize.git
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More fully in-memory integration tests.
This commit is contained in:
Jeffrey Regan
336
pkg/target/baseandoverlaymedium_test.go
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336
pkg/target/baseandoverlaymedium_test.go
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/*
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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 target
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import (
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"testing"
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"sigs.k8s.io/kustomize/pkg/internal/loadertest"
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)
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// TODO(monopole): Add a feature test example covering secret generation.
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// WARNING: These tests use a fake file system, and any attempt to use a
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// feature that spawns shells will fail, because said shells expect a working
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// directory corresponding to a real directory on disk - see
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// these lines in secretfactory.go:
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// cmd := exec.CommandContext(ctx, commands[0], commands[1:]...)
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// cmd.Dir = f.wd
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// Worse, the fake directory might match a real directory on the your system,
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// making the failure less obvious (and maybe hurting something if your secret
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// generation technique writes data to disk). So no use of secret generation
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// in these particular tests.
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// To eventually fix this, we could write the data to a real filesystem, and
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// clean up after, or use some other trick compatible with exec.
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func writeBase(t *testing.T, ldr loadertest.FakeLoader) {
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writeK(t, ldr, "/app/base", `
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namePrefix: baseprefix-
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commonLabels:
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foo: bar
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commonAnnotations:
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baseAnno: This is a base annotation
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resources:
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- deployment/deployment.yaml
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- service/service.yaml
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`)
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writeF(t, ldr, "/app/base/service/service.yaml", `
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apiVersion: v1
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kind: Service
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metadata:
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name: mungebot-service
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labels:
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app: mungebot
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spec:
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ports:
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- port: 7002
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selector:
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app: mungebot
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`)
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writeF(t, ldr, "/app/base/deployment/deployment.yaml", `
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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: mungebot
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labels:
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app: mungebot
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spec:
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replicas: 1
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template:
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metadata:
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labels:
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app: mungebot
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spec:
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containers:
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- name: nginx
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image: nginx
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env:
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- name: foo
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value: bar
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ports:
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- containerPort: 80
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`)
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}
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func TestBigBase(t *testing.T) {
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ldr := loadertest.NewFakeLoader("/app/base")
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writeBase(t, ldr)
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m, err := makeKustTarget(t, ldr).MakeCustomizedResMap()
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if err != nil {
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t.Fatalf("Err: %v", err)
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}
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if m == nil {
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t.Fatalf("Empty map.")
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}
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s, err := m.EncodeAsYaml()
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if err != nil {
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t.Fatalf("Err: %v", err)
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}
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assertExpectedEqualsActual(t, s, `apiVersion: v1
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kind: Service
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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name: baseprefix-mungebot-service
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spec:
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ports:
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- port: 7002
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selector:
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app: mungebot
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foo: bar
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---
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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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name: baseprefix-mungebot
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spec:
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replicas: 1
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selector:
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matchLabels:
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foo: bar
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template:
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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spec:
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containers:
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- env:
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- name: foo
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value: bar
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image: nginx
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name: nginx
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ports:
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- containerPort: 80
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`)
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}
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func TestBigOverlay(t *testing.T) {
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ldr := loadertest.NewFakeLoader("/app/overlay")
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writeBase(t, ldr)
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writeK(t, ldr, "/app/overlay", `
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namePrefix: test-infra-
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commonLabels:
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app: mungebot
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org: kubernetes
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repo: test-infra
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commonAnnotations:
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note: This is a test annotation
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bases:
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- ../base
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patchesStrategicMerge:
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- deployment/deployment.yaml
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configMapGenerator:
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- name: app-env
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env: configmap/app.env
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- name: app-config
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files:
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- configmap/app-init.ini
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imageTags:
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- name: nginx
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newTag: 1.8.0`)
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writeF(t, ldr, "/app/overlay/configmap/app.env", `
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DB_USERNAME=admin
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DB_PASSWORD=somepw
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`)
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writeF(t, ldr, "/app/overlay/configmap/app-init.ini", `
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FOO=bar
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BAR=baz
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`)
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writeF(t, ldr, "/app/overlay/deployment/deployment.yaml", `
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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: mungebot
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spec:
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replicas: 2
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template:
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spec:
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containers:
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- name: nginx
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image: nginx:1.7.9
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env:
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- name: FOO
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valueFrom:
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configMapKeyRef:
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name: app-env
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key: somekey
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- name: busybox
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image: busybox
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envFrom:
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- configMapRef:
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name: someConfigMap
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- configMapRef:
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name: app-env
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volumeMounts:
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- mountPath: /tmp/env
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name: app-env
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volumes:
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- configMap:
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name: app-env
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name: app-env
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`)
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m, err := makeKustTarget(t, ldr).MakeCustomizedResMap()
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if err != nil {
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t.Fatalf("Err: %v", err)
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}
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s, err := m.EncodeAsYaml()
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if err != nil {
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t.Fatalf("Unexpected err: %v", err)
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}
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assertExpectedEqualsActual(t, s, `apiVersion: v1
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data:
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app-init.ini: |2
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FOO=bar
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BAR=baz
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kind: ConfigMap
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metadata:
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annotations:
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note: This is a test annotation
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labels:
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app: mungebot
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org: kubernetes
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repo: test-infra
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name: test-infra-app-config-fd62mfc87h
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---
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apiVersion: v1
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data:
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DB_PASSWORD: somepw
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DB_USERNAME: admin
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kind: ConfigMap
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metadata:
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annotations:
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note: This is a test annotation
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labels:
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app: mungebot
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org: kubernetes
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repo: test-infra
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name: test-infra-app-env-bh449c299k
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---
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apiVersion: v1
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kind: Service
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metadata:
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annotations:
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baseAnno: This is a base annotation
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note: This is a test annotation
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labels:
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app: mungebot
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foo: bar
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org: kubernetes
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repo: test-infra
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name: test-infra-baseprefix-mungebot-service
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spec:
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ports:
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- port: 7002
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selector:
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app: mungebot
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foo: bar
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org: kubernetes
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repo: test-infra
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---
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apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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annotations:
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baseAnno: This is a base annotation
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note: This is a test annotation
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labels:
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app: mungebot
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foo: bar
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org: kubernetes
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repo: test-infra
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name: test-infra-baseprefix-mungebot
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spec:
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replicas: 2
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selector:
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matchLabels:
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app: mungebot
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foo: bar
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org: kubernetes
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repo: test-infra
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template:
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metadata:
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annotations:
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baseAnno: This is a base annotation
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note: This is a test annotation
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labels:
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app: mungebot
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foo: bar
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org: kubernetes
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repo: test-infra
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spec:
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containers:
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- env:
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- name: FOO
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valueFrom:
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configMapKeyRef:
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key: somekey
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name: test-infra-app-env-bh449c299k
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- name: foo
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value: bar
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image: nginx:1.8.0
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name: nginx
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ports:
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- containerPort: 80
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- envFrom:
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- configMapRef:
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name: someConfigMap
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- configMapRef:
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name: test-infra-app-env-bh449c299k
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image: busybox
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name: busybox
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volumeMounts:
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- mountPath: /tmp/env
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name: app-env
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volumes:
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- configMap:
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name: test-infra-app-env-bh449c299k
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name: app-env
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`)
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}
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