mirror of https://github.com/k3s-io/k3s
376 lines
11 KiB
Go
376 lines
11 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 etcd
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import (
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"reflect"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/errors"
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storeerr "k8s.io/kubernetes/pkg/api/errors/storage"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/fields"
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"k8s.io/kubernetes/pkg/labels"
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"k8s.io/kubernetes/pkg/registry/generic"
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"k8s.io/kubernetes/pkg/registry/registrytest"
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"k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/storage/etcd/etcdtest"
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etcdtesting "k8s.io/kubernetes/pkg/storage/etcd/testing"
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"k8s.io/kubernetes/pkg/util/diff"
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)
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const defaultReplicas = 100
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func newStorage(t *testing.T) (*DeploymentStorage, *etcdtesting.EtcdTestServer) {
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etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
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restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
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deploymentStorage := NewStorage(restOptions)
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return &deploymentStorage, server
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}
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var namespace = "foo-namespace"
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var name = "foo-deployment"
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func validNewDeployment() *extensions.Deployment {
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return &extensions.Deployment{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: namespace,
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},
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Spec: extensions.DeploymentSpec{
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Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"a": "b"}},
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Template: api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: "test",
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Image: "test_image",
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ImagePullPolicy: api.PullIfNotPresent,
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},
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},
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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},
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},
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Replicas: 7,
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},
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Status: extensions.DeploymentStatus{
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Replicas: 5,
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},
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}
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}
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var validDeployment = *validNewDeployment()
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func TestCreate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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test := registrytest.New(t, storage.Deployment.Etcd)
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deployment := validNewDeployment()
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deployment.ObjectMeta = api.ObjectMeta{}
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test.TestCreate(
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// valid
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deployment,
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// invalid (invalid selector)
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&extensions.Deployment{
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Spec: extensions.DeploymentSpec{
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Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{}},
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Template: validDeployment.Spec.Template,
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},
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},
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)
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}
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func TestUpdate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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test := registrytest.New(t, storage.Deployment.Etcd)
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test.TestUpdate(
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// valid
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validNewDeployment(),
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// updateFunc
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func(obj runtime.Object) runtime.Object {
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object := obj.(*extensions.Deployment)
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object.Spec.Template.Spec.NodeSelector = map[string]string{"c": "d"}
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return object
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},
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// invalid updateFunc
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func(obj runtime.Object) runtime.Object {
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object := obj.(*extensions.Deployment)
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object.Name = ""
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return object
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},
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func(obj runtime.Object) runtime.Object {
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object := obj.(*extensions.Deployment)
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object.Spec.Template.Spec.RestartPolicy = api.RestartPolicyOnFailure
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return object
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},
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func(obj runtime.Object) runtime.Object {
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object := obj.(*extensions.Deployment)
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object.Spec.Selector = &unversioned.LabelSelector{MatchLabels: map[string]string{}}
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return object
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},
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)
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}
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func TestDelete(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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test := registrytest.New(t, storage.Deployment.Etcd)
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test.TestDelete(validNewDeployment())
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}
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func TestGet(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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test := registrytest.New(t, storage.Deployment.Etcd)
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test.TestGet(validNewDeployment())
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}
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func TestList(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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test := registrytest.New(t, storage.Deployment.Etcd)
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test.TestList(validNewDeployment())
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}
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func TestWatch(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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test := registrytest.New(t, storage.Deployment.Etcd)
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test.TestWatch(
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validNewDeployment(),
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// matching labels
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[]labels.Set{},
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// not matching labels
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[]labels.Set{
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{"a": "c"},
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{"foo": "bar"},
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},
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// matching fields
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[]fields.Set{
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{"metadata.name": name},
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},
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// not matchin fields
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[]fields.Set{
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{"metadata.name": "bar"},
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{"name": name},
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},
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)
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}
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func TestScaleGet(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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var deployment extensions.Deployment
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ctx := api.WithNamespace(api.NewContext(), namespace)
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key := etcdtest.AddPrefix("/deployments/" + namespace + "/" + name)
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if err := storage.Deployment.Storage.Create(ctx, key, &validDeployment, &deployment, 0); err != nil {
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t.Fatalf("error setting new deployment (key: %s) %v: %v", key, validDeployment, err)
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}
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want := &extensions.Scale{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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Namespace: namespace,
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UID: deployment.UID,
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ResourceVersion: deployment.ResourceVersion,
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CreationTimestamp: deployment.CreationTimestamp,
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},
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Spec: extensions.ScaleSpec{
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Replicas: validDeployment.Spec.Replicas,
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},
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Status: extensions.ScaleStatus{
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Replicas: validDeployment.Status.Replicas,
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Selector: validDeployment.Spec.Selector,
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},
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}
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obj, err := storage.Scale.Get(ctx, name)
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if err != nil {
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t.Fatalf("error fetching scale for %s: %v", name, err)
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}
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got := obj.(*extensions.Scale)
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if !api.Semantic.DeepEqual(want, got) {
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t.Errorf("unexpected scale: %s", diff.ObjectDiff(want, got))
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}
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}
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func TestScaleUpdate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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var deployment extensions.Deployment
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ctx := api.WithNamespace(api.NewContext(), namespace)
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key := etcdtest.AddPrefix("/deployments/" + namespace + "/" + name)
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if err := storage.Deployment.Storage.Create(ctx, key, &validDeployment, &deployment, 0); err != nil {
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t.Fatalf("error setting new deployment (key: %s) %v: %v", key, validDeployment, err)
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}
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replicas := 12
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update := extensions.Scale{
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ObjectMeta: api.ObjectMeta{Name: name, Namespace: namespace},
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Spec: extensions.ScaleSpec{
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Replicas: replicas,
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},
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}
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if _, _, err := storage.Scale.Update(ctx, &update); err != nil {
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t.Fatalf("error updating scale %v: %v", update, err)
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}
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obj, err := storage.Scale.Get(ctx, name)
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if err != nil {
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t.Fatalf("error fetching scale for %s: %v", name, err)
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}
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scale := obj.(*extensions.Scale)
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if scale.Spec.Replicas != replicas {
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t.Errorf("wrong replicas count expected: %d got: %d", replicas, deployment.Spec.Replicas)
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}
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update.ResourceVersion = deployment.ResourceVersion
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update.Spec.Replicas = 15
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if _, _, err = storage.Scale.Update(ctx, &update); err != nil && !errors.IsConflict(err) {
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t.Fatalf("unexpected error, expecting an update conflict but got %v", err)
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}
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}
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func TestStatusUpdate(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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ctx := api.WithNamespace(api.NewContext(), namespace)
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key := etcdtest.AddPrefix("/deployments/" + namespace + "/" + name)
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if err := storage.Deployment.Storage.Create(ctx, key, &validDeployment, nil, 0); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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update := extensions.Deployment{
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ObjectMeta: validDeployment.ObjectMeta,
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Spec: extensions.DeploymentSpec{
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Replicas: defaultReplicas,
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},
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Status: extensions.DeploymentStatus{
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Replicas: defaultReplicas,
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},
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}
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if _, _, err := storage.Status.Update(ctx, &update); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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obj, err := storage.Deployment.Get(ctx, name)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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deployment := obj.(*extensions.Deployment)
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if deployment.Spec.Replicas != 7 {
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t.Errorf("we expected .spec.replicas to not be updated but it was updated to %v", deployment.Spec.Replicas)
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}
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if deployment.Status.Replicas != defaultReplicas {
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t.Errorf("we expected .status.replicas to be updated to %d but it was %v", defaultReplicas, deployment.Status.Replicas)
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}
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}
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func TestEtcdCreateDeploymentRollback(t *testing.T) {
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ctx := api.WithNamespace(api.NewContext(), namespace)
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testCases := map[string]struct {
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rollback extensions.DeploymentRollback
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errOK func(error) bool
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}{
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"normal": {
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rollback: extensions.DeploymentRollback{
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Name: name,
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UpdatedAnnotations: map[string]string{},
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RollbackTo: extensions.RollbackConfig{Revision: 1},
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},
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errOK: func(err error) bool { return err == nil },
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},
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"noAnnotation": {
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rollback: extensions.DeploymentRollback{
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Name: name,
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RollbackTo: extensions.RollbackConfig{Revision: 1},
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},
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errOK: func(err error) bool { return err == nil },
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},
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"noName": {
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rollback: extensions.DeploymentRollback{
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UpdatedAnnotations: map[string]string{},
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RollbackTo: extensions.RollbackConfig{Revision: 1},
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},
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errOK: func(err error) bool { return err != nil },
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},
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}
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for k, test := range testCases {
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storage, server := newStorage(t)
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rollbackStorage := storage.Rollback
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key, _ := storage.Deployment.KeyFunc(ctx, name)
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key = etcdtest.AddPrefix(key)
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if _, err := storage.Deployment.Create(ctx, validNewDeployment()); err != nil {
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t.Fatalf("%s: unexpected error: %v", k, err)
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}
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if _, err := rollbackStorage.Create(ctx, &test.rollback); !test.errOK(err) {
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t.Errorf("%s: unexpected error: %v", k, err)
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} else if err == nil {
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// If rollback succeeded, verify Rollback field of deployment
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d, err := storage.Deployment.Get(ctx, validNewDeployment().ObjectMeta.Name)
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if err != nil {
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t.Errorf("%s: unexpected error: %v", k, err)
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} else if !reflect.DeepEqual(*d.(*extensions.Deployment).Spec.RollbackTo, test.rollback.RollbackTo) {
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t.Errorf("%s: expected: %v, got: %v", k, *d.(*extensions.Deployment).Spec.RollbackTo, test.rollback.RollbackTo)
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}
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}
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server.Terminate(t)
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}
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}
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// Ensure that when a deploymentRollback is created for a deployment that has already been deleted
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// by the API server, API server returns not-found error.
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func TestEtcdCreateDeploymentRollbackNoDeployment(t *testing.T) {
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storage, server := newStorage(t)
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defer server.Terminate(t)
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rollbackStorage := storage.Rollback
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ctx := api.WithNamespace(api.NewContext(), namespace)
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key, _ := storage.Deployment.KeyFunc(ctx, name)
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key = etcdtest.AddPrefix(key)
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_, err := rollbackStorage.Create(ctx, &extensions.DeploymentRollback{
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Name: name,
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UpdatedAnnotations: map[string]string{},
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RollbackTo: extensions.RollbackConfig{Revision: 1},
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})
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if err == nil {
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t.Fatalf("Expected not-found-error but got nothing")
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}
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if !errors.IsNotFound(storeerr.InterpretGetError(err, extensions.Resource("deployments"), name)) {
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t.Fatalf("Unexpected error returned: %#v", err)
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}
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_, err = storage.Deployment.Get(ctx, name)
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if err == nil {
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t.Fatalf("Expected not-found-error but got nothing")
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}
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if !errors.IsNotFound(storeerr.InterpretGetError(err, extensions.Resource("deployments"), name)) {
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t.Fatalf("Unexpected error: %v", err)
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}
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}
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