mirror of
https://github.com/k3s-io/kubernetes.git
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275 lines
8.9 KiB
Go
275 lines
8.9 KiB
Go
/*
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Copyright 2015 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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"reflect"
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"strconv"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/kubernetes/pkg/api/v1"
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settings "k8s.io/kubernetes/pkg/apis/settings/v1alpha1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
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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("PodPreset", func() {
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f := framework.NewDefaultFramework("podpreset")
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var podClient *framework.PodClient
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BeforeEach(func() {
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// only run on gce for the time being til we find an easier way to update
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// the admission controllers used on the others
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framework.SkipUnlessProviderIs("gce")
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podClient = f.PodClient()
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})
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// Simplest case: all pods succeed promptly
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It("should create a pod preset", func() {
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By("Creating a pod preset")
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pip := &settings.PodPreset{
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ObjectMeta: metav1.ObjectMeta{
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Name: "hello",
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Namespace: f.Namespace.Name,
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},
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Spec: settings.PodPresetSpec{
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Selector: metav1.LabelSelector{
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MatchExpressions: []metav1.LabelSelectorRequirement{
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{
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Key: "security",
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Operator: metav1.LabelSelectorOpIn,
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Values: []string{"S2"},
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},
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},
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},
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Volumes: []v1.Volume{{Name: "vol", VolumeSource: v1.VolumeSource{EmptyDir: &v1.EmptyDirVolumeSource{}}}},
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VolumeMounts: []v1.VolumeMount{
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{Name: "vol", MountPath: "/foo"},
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},
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Env: []v1.EnvVar{{Name: "abc", Value: "value"}, {Name: "ABC", Value: "value"}},
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},
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}
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_, err := createPodPreset(f.ClientSet, f.Namespace.Name, pip)
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Expect(err).NotTo(HaveOccurred())
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By("creating the pod")
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name := "pod-preset-pod"
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value := strconv.Itoa(time.Now().Nanosecond())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: f.Namespace.Name,
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Labels: map[string]string{
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"name": "foo",
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"time": value,
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"security": "S2",
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "nginx",
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Image: "gcr.io/google_containers/nginx-slim:0.7",
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},
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},
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},
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}
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By("setting up watch")
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selector := labels.SelectorFromSet(labels.Set(map[string]string{"time": value}))
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options := metav1.ListOptions{LabelSelector: selector.String()}
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pods, err := podClient.List(options)
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Expect(err).NotTo(HaveOccurred(), "failed to query for pod")
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Expect(len(pods.Items)).To(Equal(0))
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options = metav1.ListOptions{
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LabelSelector: selector.String(),
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ResourceVersion: pods.ListMeta.ResourceVersion,
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}
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w, err := podClient.Watch(options)
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Expect(err).NotTo(HaveOccurred(), "failed to set up watch")
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By("submitting the pod to kubernetes")
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podClient.Create(pod)
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By("verifying the pod is in kubernetes")
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selector = labels.SelectorFromSet(labels.Set(map[string]string{"time": value}))
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options = metav1.ListOptions{LabelSelector: selector.String()}
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pods, err = podClient.List(options)
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Expect(err).NotTo(HaveOccurred(), "failed to query for pod")
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Expect(len(pods.Items)).To(Equal(1))
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By("verifying pod creation was observed")
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select {
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case event, _ := <-w.ResultChan():
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if event.Type != watch.Added {
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framework.Failf("Failed to observe pod creation: %v", event)
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}
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case <-time.After(framework.PodStartTimeout):
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framework.Failf("Timeout while waiting for pod creation")
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}
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// We need to wait for the pod to be running, otherwise the deletion
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// may be carried out immediately rather than gracefully.
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framework.ExpectNoError(f.WaitForPodRunning(pod.Name))
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By("ensuring pod is modified")
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// save the running pod
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pod, err = podClient.Get(pod.Name, metav1.GetOptions{})
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Expect(err).NotTo(HaveOccurred(), "failed to GET scheduled pod")
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// check the annotation is there
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if _, ok := pod.Annotations["podpreset.admission.kubernetes.io/podpreset-hello"]; !ok {
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framework.Failf("Annotation not found in pod annotations: \n%v\n", pod.Annotations)
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}
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// verify the env is the same
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if !reflect.DeepEqual(pip.Spec.Env, pod.Spec.Containers[0].Env) {
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framework.Failf("env of pod container does not match the env of the pip: expected %#v, got: %#v", pip.Spec.Env, pod.Spec.Containers[0].Env)
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}
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})
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It("should not modify the pod on conflict", func() {
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By("Creating a pod preset")
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pip := &settings.PodPreset{
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ObjectMeta: metav1.ObjectMeta{
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Name: "hello",
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Namespace: f.Namespace.Name,
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},
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Spec: settings.PodPresetSpec{
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Selector: metav1.LabelSelector{
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MatchExpressions: []metav1.LabelSelectorRequirement{
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{
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Key: "security",
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Operator: metav1.LabelSelectorOpIn,
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Values: []string{"S2"},
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},
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},
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},
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Volumes: []v1.Volume{{Name: "vol", VolumeSource: v1.VolumeSource{EmptyDir: &v1.EmptyDirVolumeSource{}}}},
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VolumeMounts: []v1.VolumeMount{
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{Name: "vol", MountPath: "/foo"},
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},
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Env: []v1.EnvVar{{Name: "abc", Value: "value"}, {Name: "ABC", Value: "value"}},
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},
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}
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_, err := createPodPreset(f.ClientSet, f.Namespace.Name, pip)
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Expect(err).NotTo(HaveOccurred())
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By("creating the pod")
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name := "pod-preset-pod"
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value := strconv.Itoa(time.Now().Nanosecond())
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originalPod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: f.Namespace.Name,
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Labels: map[string]string{
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"name": "foo",
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"time": value,
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"security": "S2",
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "nginx",
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Image: "gcr.io/google_containers/nginx-slim:0.7",
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Env: []v1.EnvVar{{Name: "abc", Value: "value2"}, {Name: "ABC", Value: "value"}},
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},
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},
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},
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}
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By("setting up watch")
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selector := labels.SelectorFromSet(labels.Set(map[string]string{"time": value}))
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options := metav1.ListOptions{LabelSelector: selector.String()}
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pods, err := podClient.List(options)
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Expect(err).NotTo(HaveOccurred(), "failed to query for pod")
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Expect(len(pods.Items)).To(Equal(0))
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options = metav1.ListOptions{
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LabelSelector: selector.String(),
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ResourceVersion: pods.ListMeta.ResourceVersion,
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}
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w, err := podClient.Watch(options)
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Expect(err).NotTo(HaveOccurred(), "failed to set up watch")
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By("submitting the pod to kubernetes")
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podClient.Create(originalPod)
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By("verifying the pod is in kubernetes")
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selector = labels.SelectorFromSet(labels.Set(map[string]string{"time": value}))
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options = metav1.ListOptions{LabelSelector: selector.String()}
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pods, err = podClient.List(options)
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Expect(err).NotTo(HaveOccurred(), "failed to query for pod")
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Expect(len(pods.Items)).To(Equal(1))
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By("verifying pod creation was observed")
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select {
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case event, _ := <-w.ResultChan():
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if event.Type != watch.Added {
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framework.Failf("Failed to observe pod creation: %v", event)
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}
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case <-time.After(framework.PodStartTimeout):
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framework.Failf("Timeout while waiting for pod creation")
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}
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// We need to wait for the pod to be running, otherwise the deletion
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// may be carried out immediately rather than gracefully.
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framework.ExpectNoError(f.WaitForPodRunning(originalPod.Name))
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By("ensuring pod is modified")
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// save the running pod
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pod, err := podClient.Get(originalPod.Name, metav1.GetOptions{})
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Expect(err).NotTo(HaveOccurred(), "failed to GET scheduled pod")
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// check the annotation is not there
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if _, ok := pod.Annotations["podpreset.admission.kubernetes.io/podpreset-hello"]; ok {
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framework.Failf("Annotation found in pod annotations and should not be: \n%v\n", pod.Annotations)
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}
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// verify the env is the same
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if !reflect.DeepEqual(originalPod.Spec.Containers[0].Env, pod.Spec.Containers[0].Env) {
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framework.Failf("env of pod container does not match the env of the original pod: expected %#v, got: %#v", originalPod.Spec.Containers[0].Env, pod.Spec.Containers[0].Env)
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}
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})
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})
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func getPodPreset(c clientset.Interface, ns, name string) (*settings.PodPreset, error) {
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return c.Settings().PodPresets(ns).Get(name, metav1.GetOptions{})
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}
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func createPodPreset(c clientset.Interface, ns string, job *settings.PodPreset) (*settings.PodPreset, error) {
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return c.Settings().PodPresets(ns).Create(job)
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}
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func updatePodPreset(c clientset.Interface, ns string, job *settings.PodPreset) (*settings.PodPreset, error) {
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return c.Settings().PodPresets(ns).Update(job)
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}
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func deletePodPreset(c clientset.Interface, ns, name string) error {
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return c.Settings().PodPresets(ns).Delete(name, nil)
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}
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