manifests/tests/application-base_test.go

package tests_test

import (
	"sigs.k8s.io/kustomize/v3/k8sdeps/kunstruct"
	"sigs.k8s.io/kustomize/v3/k8sdeps/transformer"
	"sigs.k8s.io/kustomize/v3/pkg/fs"
	"sigs.k8s.io/kustomize/v3/pkg/loader"
	"sigs.k8s.io/kustomize/v3/pkg/plugins"
	"sigs.k8s.io/kustomize/v3/pkg/resmap"
	"sigs.k8s.io/kustomize/v3/pkg/resource"
	"sigs.k8s.io/kustomize/v3/pkg/target"
	"sigs.k8s.io/kustomize/v3/pkg/validators"
	"testing"
)

func writeApplicationBase(th *KustTestHarness) {
	th.writeF("/manifests/application/application/base/cluster-role.yaml", `
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: cluster-role
rules:
- apiGroups:
  - '*'
  resources:
  - '*'
  verbs:
  - get
  - list
  - update
  - patch
  - watch
- apiGroups:
  - app.k8s.io
  resources:
  - '*'
  verbs:
  - '*'
`)
	th.writeF("/manifests/application/application/base/cluster-role-binding.yaml", `
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: cluster-role-binding
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-role
subjects:
- kind: ServiceAccount
  name: service-account
`)
	th.writeF("/manifests/application/application/base/service-account.yaml", `
apiVersion: v1
kind: ServiceAccount
metadata:
  name: service-account
`)
	th.writeF("/manifests/application/application/base/service.yaml", `
apiVersion: v1
kind: Service
metadata:
  name: service
spec:
  ports:
  - port: 443
`)
	th.writeF("/manifests/application/application/base/stateful-set.yaml", `
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: stateful-set
spec:
  serviceName: service
  selector:
    matchLabels:
      app: application-controller
  template:
    metadata:
      labels:
        app: application-controller
    spec:
      containers:
      - name: manager
        command:
        - /root/manager
        image: gcr.io/kubeflow-images-public/kubernetes-sigs/application
        imagePullPolicy: Always
        env:
        - name: project
          value: $(project)
      serviceAccountName: service-account
  volumeClaimTemplates: []
`)
	th.writeF("/manifests/application/application/base/params.yaml", `
varReference:
- path: spec/template/spec/containers/image
  kind: StatefulSet
`)
	th.writeF("/manifests/application/application/base/params.env", `
project=
`)
	th.writeK("/manifests/application/application/base", `
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- cluster-role.yaml
- cluster-role-binding.yaml
- service-account.yaml
- service.yaml
- stateful-set.yaml
namespace: kubeflow
nameprefix: application-controller-
configMapGenerator:
- name: parameters
  env: params.env
generatorOptions:
  disableNameSuffixHash: true
images:
  - name: gcr.io/kubeflow-images-public/kubernetes-sigs/application
    newName: gcr.io/kubeflow-images-public/kubernetes-sigs/application
    newTag: 1.0-beta
vars:
- name: project
  objref:
    kind: ConfigMap
    name: parameters
    apiVersion: v1
  fieldref:
    fieldpath: data.project
configurations:
- params.yaml
`)
}

func TestApplicationBase(t *testing.T) {
	th := NewKustTestHarness(t, "/manifests/application/application/base")
	writeApplicationBase(th)
	m, err := th.makeKustTarget().MakeCustomizedResMap()
	if err != nil {
		t.Fatalf("Err: %v", err)
	}
	expected, err := m.AsYaml()
	if err != nil {
		t.Fatalf("Err: %v", err)
	}
	targetPath := "../application/application/base"
	fsys := fs.MakeRealFS()
	lrc := loader.RestrictionRootOnly
	_loader, loaderErr := loader.NewLoader(lrc, validators.MakeFakeValidator(), targetPath, fsys)
	if loaderErr != nil {
		t.Fatalf("could not load kustomize loader: %v", loaderErr)
	}
	rf := resmap.NewFactory(resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl()), transformer.NewFactoryImpl())
	pc := plugins.DefaultPluginConfig()
	kt, err := target.NewKustTarget(_loader, rf, transformer.NewFactoryImpl(), plugins.NewLoader(pc, rf))
	if err != nil {
		th.t.Fatalf("Unexpected construction error %v", err)
	}
	actual, err := kt.MakeCustomizedResMap()
	if err != nil {
		t.Fatalf("Err: %v", err)
	}
	th.assertActualEqualsExpected(actual, string(expected))
}