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121 lines
3.9 KiB
Go
121 lines
3.9 KiB
Go
/*
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Copyright 2016 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 e2e
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import (
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"fmt"
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"time"
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"k8s.io/kubernetes/pkg/api"
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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/labels"
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"k8s.io/kubernetes/pkg/util/uuid"
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"k8s.io/kubernetes/pkg/util/wait"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = framework.KubeDescribe("ReplicaSet", func() {
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f := framework.NewDefaultFramework("replicaset")
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It("should serve a basic image on each replica with a public image [Conformance]", func() {
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ReplicaSetServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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})
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It("should serve a basic image on each replica with a private image", func() {
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// requires private images
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framework.SkipUnlessProviderIs("gce", "gke")
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ReplicaSetServeImageOrFail(f, "private", "b.gcr.io/k8s_authenticated_test/serve_hostname:v1.4")
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})
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})
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// A basic test to check the deployment of an image using a ReplicaSet. The
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// image serves its hostname which is checked for each replica.
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func ReplicaSetServeImageOrFail(f *framework.Framework, test string, image string) {
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name := "my-hostname-" + test + "-" + string(uuid.NewUUID())
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replicas := int32(2)
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// Create a ReplicaSet for a service that serves its hostname.
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// The source for the Docker containter kubernetes/serve_hostname is
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// in contrib/for-demos/serve_hostname
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By(fmt.Sprintf("Creating ReplicaSet %s", name))
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rs, err := f.Client.Extensions().ReplicaSets(f.Namespace.Name).Create(&extensions.ReplicaSet{
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ObjectMeta: api.ObjectMeta{
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Name: name,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: replicas,
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Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{
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"name": name,
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}},
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Template: api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: map[string]string{"name": name},
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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: name,
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Image: image,
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Ports: []api.ContainerPort{{ContainerPort: 9376}},
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},
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},
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},
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},
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},
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})
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Expect(err).NotTo(HaveOccurred())
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// Cleanup the ReplicaSet when we are done.
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defer func() {
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// Resize the ReplicaSet to zero to get rid of pods.
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if err := framework.DeleteReplicaSet(f.Client, f.Namespace.Name, rs.Name); err != nil {
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framework.Logf("Failed to cleanup ReplicaSet %v: %v.", rs.Name, err)
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}
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}()
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// List the pods, making sure we observe all the replicas.
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label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
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pods, err := framework.PodsCreated(f.Client, f.Namespace.Name, name, replicas)
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Expect(err).NotTo(HaveOccurred())
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By("Ensuring each pod is running")
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// Wait for the pods to enter the running state. Waiting loops until the pods
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// are running so non-running pods cause a timeout for this test.
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for _, pod := range pods.Items {
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if pod.DeletionTimestamp != nil {
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continue
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}
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err = f.WaitForPodRunning(pod.Name)
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Expect(err).NotTo(HaveOccurred())
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}
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// Verify that something is listening.
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By("Trying to dial each unique pod")
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retryTimeout := 2 * time.Minute
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retryInterval := 5 * time.Second
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err = wait.Poll(retryInterval, retryTimeout, framework.PodProxyResponseChecker(f.Client, f.Namespace.Name, label, name, true, pods).CheckAllResponses)
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if err != nil {
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framework.Failf("Did not get expected responses within the timeout period of %.2f seconds.", retryTimeout.Seconds())
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}
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}
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