Adding an e2e test for deployment

hack/e2e.go

@@ -178,6 +178,8 @@ func Up() bool {
 		}
 	}
 
+	// Enable deployments for e2e tests.
+	os.Setenv("KUBE_ENABLE_DEPLOYMENTS", "true")
 	return finishRunning("up", exec.Command(path.Join(*root, "hack/e2e-internal/e2e-up.sh")))
 }
 

hack/jenkins/e2e.sh

@@ -198,6 +198,7 @@ case ${JOB_NAME} in
           )"}
     : ${KUBE_GCE_INSTANCE_PREFIX="e2e-gce"}
     : ${PROJECT:="k8s-jkns-e2e-gce"}
+    : ${ENABLE_DEPLOYMENTS:=true}
     ;;
 
   # Runs only the examples tests on GCE.
@@ -265,6 +266,7 @@ case ${JOB_NAME} in
     : ${KUBE_GCE_INSTANCE_PREFIX:="pull-e2e-${EXECUTOR_NUMBER}"}
     : ${KUBE_GCS_STAGING_PATH_SUFFIX:="-${EXECUTOR_NUMBER}"}
     : ${PROJECT:="kubernetes-jenkins-pull"}
+    : ${ENABLE_DEPLOYMENTS:=true}
     # Override GCE defaults
     NUM_MINIONS=${NUM_MINIONS_PARALLEL}
     ;;
@@ -283,6 +285,7 @@ case ${JOB_NAME} in
           )"}
     : ${KUBE_GCE_INSTANCE_PREFIX:="e2e-test-parallel"}
     : ${PROJECT:="kubernetes-jenkins"}
+    : ${ENABLE_DEPLOYMENTS:=true}
     # Override GCE defaults
     NUM_MINIONS=${NUM_MINIONS_PARALLEL}
     ;;
@@ -298,6 +301,7 @@ case ${JOB_NAME} in
           ${GCE_FLAKY_TESTS[@]:+${GCE_FLAKY_TESTS[@]}} \
           ${GCE_PARALLEL_FLAKY_TESTS[@]:+${GCE_PARALLEL_FLAKY_TESTS[@]}} \
           )"}
+    : ${ENABLE_DEPLOYMENTS:=true}
     # Override AWS defaults.
     NUM_MINIONS="6"
     ;;
@@ -526,6 +530,7 @@ fi
 export E2E_MIN_STARTUP_PODS=${E2E_MIN_STARTUP_PODS:-}
 export KUBE_ENABLE_CLUSTER_MONITORING=${ENABLE_CLUSTER_MONITORING:-}
 export KUBE_ENABLE_HORIZONTAL_POD_AUTOSCALER=${ENABLE_HORIZONTAL_POD_AUTOSCALER:-}
+export KUBE_ENABLE_DEPLOYMENTS=${ENABLE_DEPLOYMENTS:-}
 export MASTER_SIZE=${MASTER_SIZE:-}
 export MINION_SIZE=${MINION_SIZE:-}
 export NUM_MINIONS=${NUM_MINIONS:-}

test/e2e/deployment.go

@@ -0,0 +1,169 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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 e2e
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/apis/experimental"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Deployment", func() {
+	f := NewFramework("deployment")
+
+	It("deployment should create new pods", func() {
+		testNewDeployment(f)
+	})
+	It("deployment should delete old pods and create new ones", func() {
+		testDeploymentDeletesOldPods(f)
+	})
+})
+
+func testNewDeployment(f *Framework) {
+	ns := f.Namespace.Name
+	c := f.Client
+	deploymentName := "nginx-deployment"
+	podLabels := map[string]string{"name": "nginx"}
+	Logf("Creating simple deployment %s", deploymentName)
+	_, err := c.Deployments(ns).Create(&experimental.Deployment{
+		ObjectMeta: api.ObjectMeta{
+			Name: deploymentName,
+		},
+		Spec: experimental.DeploymentSpec{
+			Replicas:       1,
+			Selector:       podLabels,
+			UniqueLabelKey: "deployment.kubernetes.io/podTemplateHash",
+			Template: &api.PodTemplateSpec{
+				ObjectMeta: api.ObjectMeta{
+					Labels: podLabels,
+				},
+				Spec: api.PodSpec{
+					Containers: []api.Container{
+						{
+							Name:  "nginx",
+							Image: "nginx",
+						},
+					},
+				},
+			},
+		},
+	})
+	Expect(err).NotTo(HaveOccurred())
+	defer func() {
+		Logf("deleting deployment %s", deploymentName)
+		Expect(c.Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
+	}()
+	// Check that deployment is created fine.
+	deployment, err := c.Deployments(ns).Get(deploymentName)
+	Expect(err).NotTo(HaveOccurred())
+	Logf("Deployment: %s", deployment)
+
+	// Verify that the required pods have come up.
+	err = verifyPods(c, ns, "nginx", false, 1)
+	if err != nil {
+		Logf("error in waiting for pods to come up: %s", err)
+		return
+	}
+	// DeploymentStatus should be appropriately updated.
+	deployment, err = c.Deployments(ns).Get(deploymentName)
+	Expect(err).NotTo(HaveOccurred())
+	Expect(deployment.Status.Replicas).Should(Equal(1))
+	Expect(deployment.Status.UpdatedReplicas).Should(Equal(1))
+}
+
+func testDeploymentDeletesOldPods(f *Framework) {
+	ns := f.Namespace.Name
+	c := f.Client
+	// Create redis pods.
+	podLabels := map[string]string{"name": "sample-pod"}
+	rcName := "redis-controller"
+	_, err := c.ReplicationControllers(ns).Create(&api.ReplicationController{
+		ObjectMeta: api.ObjectMeta{
+			Name: rcName,
+		},
+		Spec: api.ReplicationControllerSpec{
+			Replicas: 1,
+			Selector: podLabels,
+			Template: &api.PodTemplateSpec{
+				ObjectMeta: api.ObjectMeta{
+					Labels: podLabels,
+				},
+				Spec: api.PodSpec{
+					Containers: []api.Container{
+						{
+							Name:  "redis",
+							Image: "redis",
+						},
+					},
+				},
+			},
+		},
+	})
+	Expect(err).NotTo(HaveOccurred())
+	defer func() {
+		Logf("deleting replication controller %s", rcName)
+		Expect(c.ReplicationControllers(ns).Delete(rcName)).NotTo(HaveOccurred())
+	}()
+	// Verify that the required pods have come up.
+	err = verifyPods(c, ns, "sample-pod", false, 1)
+	if err != nil {
+		Logf("error in waiting for pods to come up: %s", err)
+		return
+	}
+
+	// Create a deployment to delete redis pods and instead bring up nginx pods.
+	deploymentName := "nginx-deployment"
+	Logf("Creating deployment %s", deploymentName)
+	_, err = c.Deployments(ns).Create(&experimental.Deployment{
+		ObjectMeta: api.ObjectMeta{
+			Name: deploymentName,
+		},
+		Spec: experimental.DeploymentSpec{
+			Replicas:       1,
+			Selector:       podLabels,
+			UniqueLabelKey: "deployment.kubernetes.io/podTemplateHash",
+			Template: &api.PodTemplateSpec{
+				ObjectMeta: api.ObjectMeta{
+					Labels: podLabels,
+				},
+				Spec: api.PodSpec{
+					Containers: []api.Container{
+						{
+							Name:  "nginx",
+							Image: "nginx",
+						},
+					},
+				},
+			},
+		},
+	})
+	Expect(err).NotTo(HaveOccurred())
+	defer func() {
+		Logf("deleting deployment %s", deploymentName)
+		Expect(c.Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
+	}()
+
+	// Verify that the required pods have come up.
+	verifyPods(c, ns, "nginx", false, 1)
+	// DeploymentStatus should be appropriately updated.
+	deployment, err := c.Deployments(ns).Get(deploymentName)
+	Expect(err).NotTo(HaveOccurred())
+	Expect(deployment.Status.Replicas).Should(Equal(1))
+	Expect(deployment.Status.UpdatedReplicas).Should(Equal(1))
+}

test/e2e/resize_nodes.go

@@ -226,7 +226,7 @@ func resizeRC(c *client.Client, ns, name string, replicas int) error {
 }
 
 func podsCreated(c *client.Client, ns, name string, replicas int) (*api.PodList, error) {
-	timeout := time.Minute
+	timeout := 2 * time.Minute
 	// List the pods, making sure we observe all the replicas.
 	label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
 	for start := time.Now(); time.Since(start) < timeout; time.Sleep(5 * time.Second) {