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https://github.com/k3s-io/kubernetes.git
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Add Deployment resource lifecycle test as-is
This commit is contained in:
Caleb Woodbine
parent
a463b25c9d
commit
3149247932
@ -21,6 +21,7 @@ import (
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"fmt"
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"math/rand"
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"time"
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"encoding/json"
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"github.com/davecgh/go-spew/spew"
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"github.com/onsi/ginkgo"
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@ -28,6 +29,10 @@ import (
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/client-go/tools/cache"
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unstructuredv1 "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/client-go/dynamic"
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appsv1 "k8s.io/api/apps/v1"
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v1 "k8s.io/api/core/v1"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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@ -67,6 +72,7 @@ var (
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var _ = SIGDescribe("Deployment", func() {
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var ns string
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var c clientset.Interface
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var dc dynamic.Interface
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ginkgo.AfterEach(func() {
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failureTrap(c, ns)
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@ -77,6 +83,7 @@ var _ = SIGDescribe("Deployment", func() {
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ginkgo.BeforeEach(func() {
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c = f.ClientSet
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ns = f.Namespace.Name
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dc = f.DynamicClient
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})
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ginkgo.It("deployment reaping should cascade to its replica sets and pods", func() {
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@ -134,6 +141,270 @@ var _ = SIGDescribe("Deployment", func() {
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})
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// TODO: add tests that cover deployment.Spec.MinReadySeconds once we solved clock-skew issues
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// See https://github.com/kubernetes/kubernetes/issues/29229
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ginkgo.It("should run the lifecycle of a Deployment", func() {
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deploymentResource := schema.GroupVersionResource{Group: "apps", Version: "v1", Resource: "deployments"}
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testDeploymentName := "test-deployment"
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testDeploymentInitialImage := "nginx"
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testDeploymentPatchImage := "alpine"
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testDeploymentUpdateImage := "httpd"
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testDeploymentDefaultReplicas := int32(3)
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testDeploymentMinimumReplicas := int32(1)
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testDeploymentNoReplicas := int32(0)
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// TODO labels
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// TODO flat labels
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testDeploymentLabelSelectors := metav1.LabelSelector{
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MatchLabels: map[string]string{"app": "test-deployment"},
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}
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testNamespaceName := "default"
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fmt.Println("creating a Deployment")
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testDeployment := appsv1.Deployment{
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ObjectMeta: metav1.ObjectMeta{
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Name: testDeploymentName,
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Labels: map[string]string{"test-deployment-static": "true"},
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},
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Spec: appsv1.DeploymentSpec{
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Replicas: &testDeploymentDefaultReplicas,
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Selector: &testDeploymentLabelSelectors,
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: testDeploymentLabelSelectors.MatchLabels,
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{{
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Name: testDeploymentName,
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Image: testDeploymentInitialImage,
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}},
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},
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},
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},
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}
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_, err := f.ClientSet.AppsV1().Deployments(testNamespaceName).Create(context.TODO(), &testDeployment, metav1.CreateOptions{})
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if err != nil {
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fmt.Println(err)
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return
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}
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fmt.Println("watching for the Deployment to be added")
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dplmtWatchTimeoutSeconds := int64(180)
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dplmtWatch, err := f.ClientSet.AppsV1().Deployments(testNamespaceName).Watch(context.TODO(), metav1.ListOptions{LabelSelector: "test-deployment-static=true", TimeoutSeconds: &dplmtWatchTimeoutSeconds})
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if err != nil {
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fmt.Println(err, "Failed to setup watch on newly created Deployment")
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return
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}
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dplmtWatchChan := dplmtWatch.ResultChan()
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for event := range dplmtWatchChan {
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if event.Type == watch.Added {
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break
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}
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}
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defer func() {
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fmt.Println("deleting the Deployment")
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err = f.ClientSet.AppsV1().Deployments(testNamespaceName).DeleteCollection(context.TODO(), metav1.DeleteOptions{}, metav1.ListOptions{LabelSelector: "test-deployment-static=true"})
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if err != nil {
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fmt.Println(err)
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return
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}
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for event := range dplmtWatchChan {
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deployment, ok := event.Object.(*appsv1.Deployment)
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if ok != true {
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fmt.Println("unable to convert event.Object type")
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return
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}
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if event.Type == watch.Deleted && deployment.ObjectMeta.Name == testDeploymentName {
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break
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}
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}
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}()
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fmt.Println("waiting for all Replicas to be Ready")
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for event := range dplmtWatchChan {
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deployment, ok := event.Object.(*appsv1.Deployment)
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if ok != true {
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fmt.Println("unable to convert event.Object type")
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return
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}
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if deployment.Status.AvailableReplicas == testDeploymentDefaultReplicas &&
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deployment.Status.ReadyReplicas == testDeploymentDefaultReplicas {
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break
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}
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}
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fmt.Println("patching the Deployment")
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deploymentPatch, err := json.Marshal(map[string]interface{}{
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"metadata": map[string]interface{}{
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"labels": map[string]string{"test-deployment": "patched"},
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},
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"spec": map[string]interface{}{
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"replicas": testDeploymentMinimumReplicas,
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"template": map[string]interface{}{
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"spec": map[string]interface{}{
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"containers": []map[string]interface{}{{
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"name": testDeploymentName,
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"image": testDeploymentPatchImage,
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"command": []string{"/bin/sleep", "100000"},
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}},
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},
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},
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},
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})
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if err != nil {
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fmt.Println(err, "failed to Marshal Deployment JSON patch")
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return
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}
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_, err = f.ClientSet.AppsV1().Deployments(testNamespaceName).Patch(context.TODO(), testDeploymentName, types.StrategicMergePatchType, []byte(deploymentPatch), metav1.PatchOptions{})
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if err != nil {
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fmt.Println(err, "failed to patch Deployment")
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return
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}
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for event := range dplmtWatchChan {
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if event.Type == watch.Modified {
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break
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}
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}
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fmt.Println("waiting for Replicas to scale")
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for event := range dplmtWatchChan {
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deployment, ok := event.Object.(*appsv1.Deployment)
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if ok != true {
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fmt.Println("unable to convert event.Object type")
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return
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}
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if deployment.Status.AvailableReplicas == testDeploymentMinimumReplicas &&
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deployment.Status.ReadyReplicas == testDeploymentMinimumReplicas {
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break
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}
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}
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fmt.Println("listing Deployments")
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deploymentsList, err := f.ClientSet.AppsV1().Deployments("").List(context.TODO(), metav1.ListOptions{LabelSelector: "test-deployment-static=true"})
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if err != nil {
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fmt.Println(err, "failed to list Deployments")
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return
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}
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foundDeployment := false
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for _, deploymentItem := range deploymentsList.Items {
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if deploymentItem.ObjectMeta.Name == testDeploymentName &&
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deploymentItem.ObjectMeta.Namespace == testNamespaceName &&
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deploymentItem.ObjectMeta.Labels["test-deployment-static"] == "true" &&
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*deploymentItem.Spec.Replicas == testDeploymentMinimumReplicas &&
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deploymentItem.Spec.Template.Spec.Containers[0].Image == testDeploymentPatchImage {
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foundDeployment = true
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break
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}
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}
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if foundDeployment != true {
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fmt.Println("unable to find the Deployment in list")
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return
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}
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fmt.Println("updating the DeploymentStatus")
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testDeploymentUpdate := testDeployment
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testDeploymentUpdate.ObjectMeta.Labels["test-deployment"] = "updated"
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testDeploymentUpdate.Spec.Template.Spec.Containers[0].Image = testDeploymentUpdateImage
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testDeploymentDefaultReplicasPointer := &testDeploymentDefaultReplicas
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testDeploymentUpdate.Spec.Replicas = testDeploymentDefaultReplicasPointer
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testDeploymentUpdate.Status.ReadyReplicas = testDeploymentNoReplicas
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testDeploymentUpdateUnstructuredMap, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&testDeploymentUpdate)
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if err != nil {
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fmt.Println(err, "failed to convert to unstructured")
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}
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testDeploymentUpdateUnstructured := unstructuredv1.Unstructured{
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Object: testDeploymentUpdateUnstructuredMap,
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}
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// currently this hasn't been able to hit the endpoint replaceAppsV1NamespacedDeploymentStatus
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_, err = dc.Resource(deploymentResource).Namespace(testNamespaceName).Update(context.TODO(), &testDeploymentUpdateUnstructured, metav1.UpdateOptions{}) //, "status")
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if err != nil {
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fmt.Println(err, "failed to update the DeploymentStatus")
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return
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}
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for event := range dplmtWatchChan {
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if event.Type == watch.Modified {
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break
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}
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}
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fmt.Println("fetching the DeploymentStatus")
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deploymentGetUnstructured, err := dc.Resource(deploymentResource).Namespace(testNamespaceName).Get(context.TODO(), testDeploymentName, metav1.GetOptions{}, "status")
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if err != nil {
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fmt.Println(err, "failed to fetch the Deployment")
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return
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}
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deploymentGet := appsv1.Deployment{}
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err = runtime.DefaultUnstructuredConverter.FromUnstructured(deploymentGetUnstructured.Object, &deploymentGet)
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if err != nil {
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fmt.Println(err, "failed to convert the unstructured response to a Deployment")
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return
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}
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if !(deploymentGet.Spec.Template.Spec.Containers[0].Image == testDeploymentUpdateImage || deploymentGet.Status.ReadyReplicas == testDeploymentNoReplicas || deploymentGet.ObjectMeta.Labels["test-deployment"] == "updated") {
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fmt.Println("failed to update the Deployment (did not return correct values)")
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return
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}
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for event := range dplmtWatchChan {
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if event.Type == watch.Modified {
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break
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}
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}
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for event := range dplmtWatchChan {
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deployment, ok := event.Object.(*appsv1.Deployment)
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if ok != true {
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fmt.Println("failed to convert event Object to a Deployment")
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return
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}
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if deployment.Status.ReadyReplicas == testDeploymentDefaultReplicas {
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break
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}
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}
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fmt.Println("patching the DeploymentStatus")
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deploymentStatusPatch, err := json.Marshal(map[string]interface{}{
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"metadata": map[string]interface{}{
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"labels": map[string]string{"test-deployment": "patched-status"},
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},
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"status": map[string]interface{}{
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"readyReplicas": testDeploymentNoReplicas,
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},
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})
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if err != nil {
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fmt.Println(err, "failed to Marshal Deployment JSON patch")
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return
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}
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dc.Resource(deploymentResource).Namespace(testNamespaceName).Patch(context.TODO(), testDeploymentName, types.StrategicMergePatchType, []byte(deploymentStatusPatch), metav1.PatchOptions{}, "status")
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fmt.Println("fetching the DeploymentStatus")
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deploymentGetUnstructured, err = dc.Resource(deploymentResource).Namespace(testNamespaceName).Get(context.TODO(), testDeploymentName, metav1.GetOptions{}, "status")
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if err != nil {
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fmt.Println(err, "failed to fetch the DeploymentStatus")
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return
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}
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deploymentGet = appsv1.Deployment{}
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err = runtime.DefaultUnstructuredConverter.FromUnstructured(deploymentGetUnstructured.Object, &deploymentGet)
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if err != nil {
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fmt.Println(err, "failed to convert the unstructured response to a Deployment")
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return
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}
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if !(deploymentGet.Spec.Template.Spec.Containers[0].Image == testDeploymentUpdateImage || deploymentGet.Status.ReadyReplicas == 0 || deploymentGet.ObjectMeta.Labels["test-deployment"] == "patched-status") {
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fmt.Println("failed to update the Deployment (did not return correct values)")
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return
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}
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for event := range dplmtWatchChan {
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if event.Type == watch.Modified {
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break
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}
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}
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for event := range dplmtWatchChan {
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deployment, ok := event.Object.(*appsv1.Deployment)
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if ok != true {
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fmt.Println("failed to convert event Object to a Deployment")
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return
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}
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if deployment.Status.ReadyReplicas == testDeploymentDefaultReplicas {
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break
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}
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}
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})
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})
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func failureTrap(c clientset.Interface, ns string) {
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@ -372,7 +643,6 @@ func testDeploymentCleanUpPolicy(f *framework.Framework) {
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w, err := c.CoreV1().Pods(ns).Watch(context.TODO(), options)
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framework.ExpectNoError(err)
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go func() {
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defer ginkgo.GinkgoRecover()
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// There should be only one pod being created, which is the pod with the agnhost image.
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// The old RS shouldn't create new pod when deployment controller adding pod template hash label to its selector.
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numPodCreation := 1
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