Replace godep with dep

vendor/k8s.io/kubernetes/test/e2e/upgrades/apps/deployments.go

@@ -0,0 +1,186 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package upgrades
+
+import (
+	"fmt"
+
+	extensions "k8s.io/api/extensions/v1beta1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
+	"k8s.io/kubernetes/pkg/util/version"
+	"k8s.io/kubernetes/test/e2e/framework"
+	"k8s.io/kubernetes/test/e2e/upgrades"
+
+	. "github.com/onsi/ginkgo"
+	imageutils "k8s.io/kubernetes/test/utils/image"
+)
+
+// TODO: Test that the deployment stays available during master (and maybe
+// node and cluster upgrades).
+
+// DeploymentUpgradeTest tests that a deployment is using the same replica
+// sets before and after a cluster upgrade.
+type DeploymentUpgradeTest struct {
+	oldD     *extensions.Deployment
+	updatedD *extensions.Deployment
+	oldRS    *extensions.ReplicaSet
+	newRS    *extensions.ReplicaSet
+}
+
+func (DeploymentUpgradeTest) Name() string { return "[sig-apps] deployment-upgrade" }
+
+func (DeploymentUpgradeTest) Skip(upgCtx upgrades.UpgradeContext) bool {
+	// The Deployment upgrade test currently relies on implementation details to probe the
+	// ReplicaSets belonging to a Deployment. As of 1.7, the client code we call into no
+	// longer supports talking to a server <1.6. (see #47685)
+	minVersion := version.MustParseSemantic("v1.6.0")
+
+	for _, vCtx := range upgCtx.Versions {
+		if vCtx.Version.LessThan(minVersion) {
+			return true
+		}
+	}
+	return false
+}
+
+var _ upgrades.Skippable = DeploymentUpgradeTest{}
+
+// Setup creates a deployment and makes sure it has a new and an old replica set running.
+// This calls in to client code and should not be expected to work against a cluster more than one minor version away from the current version.
+func (t *DeploymentUpgradeTest) Setup(f *framework.Framework) {
+	deploymentName := "deployment-hash-test"
+	c := f.ClientSet
+	nginxImage := imageutils.GetE2EImage(imageutils.NginxSlim)
+
+	ns := f.Namespace.Name
+
+	By(fmt.Sprintf("Creating a deployment %q in namespace %q", deploymentName, ns))
+	d := framework.NewDeployment(deploymentName, int32(1), map[string]string{"test": "upgrade"}, "nginx", nginxImage, extensions.RollingUpdateDeploymentStrategyType)
+	deployment, err := c.Extensions().Deployments(ns).Create(d)
+	framework.ExpectNoError(err)
+
+	// Wait for it to be updated to revision 1
+	By(fmt.Sprintf("Waiting deployment %q to be updated to revision 1", deploymentName))
+	err = framework.WaitForDeploymentRevisionAndImage(c, ns, deploymentName, "1", nginxImage)
+	framework.ExpectNoError(err)
+
+	By(fmt.Sprintf("Waiting deployment %q to complete", deploymentName))
+	framework.ExpectNoError(framework.WaitForDeploymentStatusValid(c, deployment))
+
+	rs, err := deploymentutil.GetNewReplicaSet(deployment, c.ExtensionsV1beta1())
+	framework.ExpectNoError(err)
+	if rs == nil {
+		framework.ExpectNoError(fmt.Errorf("expected a new replica set for deployment %q, found none", deployment.Name))
+	}
+
+	// Store the old replica set - should be the same after the upgrade.
+	t.oldRS = rs
+
+	// Trigger a new rollout so that we have some history.
+	By(fmt.Sprintf("Triggering a new rollout for deployment %q", deploymentName))
+	deployment, err = framework.UpdateDeploymentWithRetries(c, ns, deploymentName, func(update *extensions.Deployment) {
+		update.Spec.Template.Spec.Containers[0].Name = "updated-name"
+	})
+	framework.ExpectNoError(err)
+
+	// Use observedGeneration to determine if the controller noticed the pod template update.
+	framework.Logf("Wait deployment %q to be observed by the deployment controller", deploymentName)
+	framework.ExpectNoError(framework.WaitForObservedDeployment(c, ns, deploymentName, deployment.Generation))
+
+	// Wait for it to be updated to revision 2
+	By(fmt.Sprintf("Waiting deployment %q to be updated to revision 2", deploymentName))
+	framework.ExpectNoError(framework.WaitForDeploymentRevisionAndImage(c, ns, deploymentName, "2", nginxImage))
+
+	By(fmt.Sprintf("Waiting deployment %q to complete", deploymentName))
+	framework.ExpectNoError(framework.WaitForDeploymentStatus(c, deployment))
+
+	rs, err = deploymentutil.GetNewReplicaSet(deployment, c.ExtensionsV1beta1())
+	framework.ExpectNoError(err)
+	if rs == nil {
+		framework.ExpectNoError(fmt.Errorf("expected a new replica set for deployment %q", deployment.Name))
+	}
+
+	if rs.UID == t.oldRS.UID {
+		framework.ExpectNoError(fmt.Errorf("expected a new replica set different from the previous one"))
+	}
+
+	// Store new replica set - should be the same after the upgrade.
+	t.newRS = rs
+	deployment, err = c.Extensions().Deployments(ns).Get(deployment.Name, metav1.GetOptions{})
+	framework.ExpectNoError(err)
+	t.oldD = deployment
+}
+
+// Test checks whether the replica sets for a deployment are the same after an upgrade.
+func (t *DeploymentUpgradeTest) Test(f *framework.Framework, done <-chan struct{}, upgrade upgrades.UpgradeType) {
+	// Block until upgrade is done
+	By(fmt.Sprintf("Waiting for upgrade to finish before checking replica sets for deployment %q", t.oldD.Name))
+	<-done
+
+	c := f.ClientSet
+
+	deployment, err := c.Extensions().Deployments(t.oldD.Namespace).Get(t.oldD.Name, metav1.GetOptions{})
+	framework.ExpectNoError(err)
+	t.updatedD = deployment
+
+	By(fmt.Sprintf("Waiting for deployment %q to complete adoption", deployment.Name))
+	framework.ExpectNoError(framework.WaitForDeploymentStatus(c, deployment))
+
+	By(fmt.Sprintf("Checking that replica sets for deployment %q are the same as prior to the upgrade", t.updatedD.Name))
+	_, allOldRSs, newRS, err := deploymentutil.GetAllReplicaSets(t.updatedD, c.ExtensionsV1beta1())
+	framework.ExpectNoError(err)
+	if newRS == nil {
+		By(t.spewDeploymentAndReplicaSets(newRS, allOldRSs))
+		framework.ExpectNoError(fmt.Errorf("expected a new replica set for deployment %q", t.updatedD.Name))
+	}
+	if newRS.UID != t.newRS.UID {
+		By(t.spewDeploymentAndReplicaSets(newRS, allOldRSs))
+		framework.ExpectNoError(fmt.Errorf("expected new replica set:\n%#v\ngot new replica set:\n%#v\n", t.newRS, newRS))
+	}
+	if len(allOldRSs) != 1 {
+		By(t.spewDeploymentAndReplicaSets(newRS, allOldRSs))
+		errString := fmt.Sprintf("expected one old replica set, got %d\n", len(allOldRSs))
+		for i := range allOldRSs {
+			rs := allOldRSs[i]
+			errString += fmt.Sprintf("%#v\n", rs)
+		}
+		framework.ExpectNoError(fmt.Errorf(errString))
+	}
+	if allOldRSs[0].UID != t.oldRS.UID {
+		By(t.spewDeploymentAndReplicaSets(newRS, allOldRSs))
+		framework.ExpectNoError(fmt.Errorf("expected old replica set:\n%#v\ngot old replica set:\n%#v\n", t.oldRS, allOldRSs[0]))
+	}
+}
+
+// Teardown cleans up any remaining resources.
+func (t *DeploymentUpgradeTest) Teardown(f *framework.Framework) {
+	// rely on the namespace deletion to clean up everything
+}
+
+func (t *DeploymentUpgradeTest) spewDeploymentAndReplicaSets(newRS *extensions.ReplicaSet, allOldRSs []*extensions.ReplicaSet) string {
+	msg := fmt.Sprintf("deployment prior to the upgrade:\n%#v\n", t.oldD)
+	msg += fmt.Sprintf("old replica sets prior to the upgrade:\n%#v\n", t.oldRS)
+	msg += fmt.Sprintf("new replica sets prior to the upgrade:\n%#v\n", t.newRS)
+	msg += fmt.Sprintf("deployment after the upgrade:\n%#v\n", t.updatedD)
+	msg += fmt.Sprintf("new replica set after the upgrade:\n%#v\n", newRS)
+	msg += fmt.Sprintf("old replica sets after the upgrade:\n")
+	for i := range allOldRSs {
+		msg += fmt.Sprintf("%#v\n", allOldRSs[i])
+	}
+	return msg
+}