mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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515 lines
21 KiB
Go
515 lines
21 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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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"sync"
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"time"
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"k8s.io/kubernetes/pkg/api"
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client "k8s.io/kubernetes/pkg/client/unversioned"
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"k8s.io/kubernetes/pkg/labels"
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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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const (
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serverStartTimeout = framework.PodStartTimeout + 3*time.Minute
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)
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var _ = framework.KubeDescribe("[Feature:Example]", func() {
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f := framework.NewDefaultFramework("examples")
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// Reusable cluster state function. This won't be adversly affected by lazy initialization of framework.
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clusterState := func(selectorKey string, selectorValue string) *framework.ClusterVerification {
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return f.NewClusterVerification(
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framework.PodStateVerification{
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Selectors: map[string]string{selectorKey: selectorValue},
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ValidPhases: []api.PodPhase{api.PodRunning},
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})
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}
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// Customized ForEach wrapper for this test.
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forEachPod := func(selectorKey string, selectorValue string, fn func(api.Pod)) {
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clusterState(selectorKey, selectorValue).ForEach(fn)
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}
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var c *client.Client
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var ns string
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BeforeEach(func() {
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c = f.Client
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ns = f.Namespace.Name
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})
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framework.KubeDescribe("Redis", func() {
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It("should create and stop redis servers", func() {
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mkpath := func(file string) string {
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return filepath.Join(framework.TestContext.RepoRoot, "examples/storage/redis", file)
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}
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bootstrapYaml := mkpath("redis-master.yaml")
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sentinelServiceYaml := mkpath("redis-sentinel-service.yaml")
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sentinelControllerYaml := mkpath("redis-sentinel-controller.yaml")
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controllerYaml := mkpath("redis-controller.yaml")
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bootstrapPodName := "redis-master"
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redisRC := "redis"
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sentinelRC := "redis-sentinel"
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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expectedOnServer := "The server is now ready to accept connections"
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expectedOnSentinel := "+monitor master"
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By("starting redis bootstrap")
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framework.RunKubectlOrDie("create", "-f", bootstrapYaml, nsFlag)
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err := framework.WaitForPodNameRunningInNamespace(c, bootstrapPodName, ns)
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Expect(err).NotTo(HaveOccurred())
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_, err = framework.LookForStringInLog(ns, bootstrapPodName, "master", expectedOnServer, serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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_, err = framework.LookForStringInLog(ns, bootstrapPodName, "sentinel", expectedOnSentinel, serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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By("setting up services and controllers")
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framework.RunKubectlOrDie("create", "-f", sentinelServiceYaml, nsFlag)
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framework.RunKubectlOrDie("create", "-f", sentinelControllerYaml, nsFlag)
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framework.RunKubectlOrDie("create", "-f", controllerYaml, nsFlag)
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label := labels.SelectorFromSet(labels.Set(map[string]string{sentinelRC: "true"}))
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err = framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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label = labels.SelectorFromSet(labels.Set(map[string]string{"name": redisRC}))
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err = framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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By("scaling up the deployment")
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framework.RunKubectlOrDie("scale", "rc", redisRC, "--replicas=3", nsFlag)
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framework.RunKubectlOrDie("scale", "rc", sentinelRC, "--replicas=3", nsFlag)
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framework.WaitForRCToStabilize(c, ns, redisRC, framework.PodReadyBeforeTimeout)
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framework.WaitForRCToStabilize(c, ns, sentinelRC, framework.PodReadyBeforeTimeout)
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By("checking up the services")
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checkAllLogs := func() {
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selectorKey, selectorValue := "name", redisRC
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label := labels.SelectorFromSet(labels.Set(map[string]string{selectorKey: selectorValue}))
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err = framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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forEachPod(selectorKey, selectorValue, func(pod api.Pod) {
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if pod.Name != bootstrapPodName {
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_, err := framework.LookForStringInLog(ns, pod.Name, "redis", expectedOnServer, serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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}
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})
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selectorKey, selectorValue = sentinelRC, "true"
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label = labels.SelectorFromSet(labels.Set(map[string]string{selectorKey: selectorValue}))
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err = framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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forEachPod(selectorKey, selectorValue, func(pod api.Pod) {
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if pod.Name != bootstrapPodName {
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_, err := framework.LookForStringInLog(ns, pod.Name, "sentinel", expectedOnSentinel, serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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}
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})
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}
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checkAllLogs()
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By("turning down bootstrap")
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framework.RunKubectlOrDie("delete", "-f", bootstrapYaml, nsFlag)
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err = framework.WaitForRCPodToDisappear(c, ns, redisRC, bootstrapPodName)
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Expect(err).NotTo(HaveOccurred())
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By("waiting for the new master election")
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checkAllLogs()
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})
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})
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framework.KubeDescribe("Spark", func() {
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It("should start spark master, driver and workers", func() {
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mkpath := func(file string) string {
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return filepath.Join(framework.TestContext.RepoRoot, "examples/spark", file)
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}
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// TODO: Add Zepplin and Web UI to this example.
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serviceYaml := mkpath("spark-master-service.yaml")
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masterYaml := mkpath("spark-master-controller.yaml")
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workerControllerYaml := mkpath("spark-worker-controller.yaml")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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master := func() {
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By("starting master")
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framework.RunKubectlOrDie("create", "-f", serviceYaml, nsFlag)
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framework.RunKubectlOrDie("create", "-f", masterYaml, nsFlag)
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selectorKey, selectorValue := "component", "spark-master"
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label := labels.SelectorFromSet(labels.Set(map[string]string{selectorKey: selectorValue}))
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err := framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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framework.Logf("Now polling for Master startup...")
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// Only one master pod: But its a natural way to look up pod names.
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forEachPod(selectorKey, selectorValue, func(pod api.Pod) {
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framework.Logf("Now waiting for master to startup in %v", pod.Name)
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_, err := framework.LookForStringInLog(ns, pod.Name, "spark-master", "Starting Spark master at", serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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})
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By("waiting for master endpoint")
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err = framework.WaitForEndpoint(c, ns, "spark-master")
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Expect(err).NotTo(HaveOccurred())
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forEachPod(selectorKey, selectorValue, func(pod api.Pod) {
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_, maErr := framework.LookForStringInLog(f.Namespace.Name, pod.Name, "spark-master", "Starting Spark master at", serverStartTimeout)
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if maErr != nil {
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framework.Failf("Didn't find target string. error:", maErr)
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}
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})
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}
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worker := func() {
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By("starting workers")
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framework.Logf("Now starting Workers")
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framework.RunKubectlOrDie("create", "-f", workerControllerYaml, nsFlag)
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selectorKey, selectorValue := "component", "spark-worker"
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label := labels.SelectorFromSet(labels.Set(map[string]string{selectorKey: selectorValue}))
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err := framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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// For now, scaling is orthogonal to the core test.
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// framework.ScaleRC(c, ns, "spark-worker-controller", 2, true)
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framework.Logf("Now polling for worker startup...")
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forEachPod(selectorKey, selectorValue,
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func(pod api.Pod) {
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_, slaveErr := framework.LookForStringInLog(ns, pod.Name, "spark-worker", "Successfully registered with master", serverStartTimeout)
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Expect(slaveErr).NotTo(HaveOccurred())
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})
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}
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// Run the worker verification after we turn up the master.
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defer worker()
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master()
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})
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})
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framework.KubeDescribe("Cassandra", func() {
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It("should create and scale cassandra", func() {
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mkpath := func(file string) string {
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return filepath.Join(framework.TestContext.RepoRoot, "examples/storage/cassandra", file)
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}
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serviceYaml := mkpath("cassandra-service.yaml")
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controllerYaml := mkpath("cassandra-controller.yaml")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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By("Starting the cassandra service")
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framework.RunKubectlOrDie("create", "-f", serviceYaml, nsFlag)
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framework.Logf("wait for service")
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err := framework.WaitForService(c, ns, "cassandra", true, framework.Poll, framework.ServiceRespondingTimeout)
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Expect(err).NotTo(HaveOccurred())
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// Create an RC with n nodes in it. Each node will then be verified.
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By("Creating a Cassandra RC")
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framework.RunKubectlOrDie("create", "-f", controllerYaml, nsFlag)
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label := labels.SelectorFromSet(labels.Set(map[string]string{"app": "cassandra"}))
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err = framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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forEachPod("app", "cassandra", func(pod api.Pod) {
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framework.Logf("Verifying pod %v ", pod.Name)
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_, err = framework.LookForStringInLog(ns, pod.Name, "cassandra", "Listening for thrift clients", serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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_, err = framework.LookForStringInLog(ns, pod.Name, "cassandra", "Handshaking version", serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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})
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By("Finding each node in the nodetool status lines")
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forEachPod("app", "cassandra", func(pod api.Pod) {
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output := framework.RunKubectlOrDie("exec", pod.Name, nsFlag, "--", "nodetool", "status")
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if !strings.Contains(output, pod.Status.PodIP) {
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framework.Failf("Pod ip %s not found in nodetool status", pod.Status.PodIP)
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}
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})
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})
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})
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framework.KubeDescribe("Storm", func() {
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It("should create and stop Zookeeper, Nimbus and Storm worker servers", func() {
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mkpath := func(file string) string {
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return filepath.Join(framework.TestContext.RepoRoot, "examples/storm", file)
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}
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zookeeperServiceJson := mkpath("zookeeper-service.json")
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zookeeperPodJson := mkpath("zookeeper.json")
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nimbusServiceJson := mkpath("storm-nimbus-service.json")
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nimbusPodJson := mkpath("storm-nimbus.json")
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workerControllerJson := mkpath("storm-worker-controller.json")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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zookeeperPod := "zookeeper"
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nimbusPod := "nimbus"
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By("starting Zookeeper")
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framework.RunKubectlOrDie("create", "-f", zookeeperPodJson, nsFlag)
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framework.RunKubectlOrDie("create", "-f", zookeeperServiceJson, nsFlag)
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err := f.WaitForPodRunningSlow(zookeeperPod)
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Expect(err).NotTo(HaveOccurred())
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By("checking if zookeeper is up and running")
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_, err = framework.LookForStringInLog(ns, zookeeperPod, "zookeeper", "binding to port", serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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err = framework.WaitForEndpoint(c, ns, "zookeeper")
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Expect(err).NotTo(HaveOccurred())
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By("starting Nimbus")
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framework.RunKubectlOrDie("create", "-f", nimbusPodJson, nsFlag)
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framework.RunKubectlOrDie("create", "-f", nimbusServiceJson, nsFlag)
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err = f.WaitForPodRunningSlow(nimbusPod)
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Expect(err).NotTo(HaveOccurred())
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err = framework.WaitForEndpoint(c, ns, "nimbus")
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Expect(err).NotTo(HaveOccurred())
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By("starting workers")
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framework.RunKubectlOrDie("create", "-f", workerControllerJson, nsFlag)
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label := labels.SelectorFromSet(labels.Set(map[string]string{"name": "storm-worker"}))
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err = framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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forEachPod("name", "storm-worker", func(pod api.Pod) {
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//do nothing, just wait for the pod to be running
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})
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// TODO: Add logging configuration to nimbus & workers images and then
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// look for a string instead of sleeping.
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time.Sleep(20 * time.Second)
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By("checking if there are established connections to Zookeeper")
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_, err = framework.LookForStringInLog(ns, zookeeperPod, "zookeeper", "Established session", serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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By("checking if Nimbus responds to requests")
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framework.LookForString("No topologies running.", time.Minute, func() string {
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return framework.RunKubectlOrDie("exec", "nimbus", nsFlag, "--", "bin/storm", "list")
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})
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})
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})
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framework.KubeDescribe("Liveness", func() {
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It("liveness pods should be automatically restarted", func() {
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mkpath := func(file string) string {
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path := filepath.Join("test/fixtures/doc-yaml/user-guide/liveness", file)
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ExpectNoError(framework.CreateFileForGoBinData(path, path))
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return path
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}
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execYaml := mkpath("exec-liveness.yaml")
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httpYaml := mkpath("http-liveness.yaml")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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framework.RunKubectlOrDie("create", "-f", filepath.Join(framework.TestContext.OutputDir, execYaml), nsFlag)
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framework.RunKubectlOrDie("create", "-f", filepath.Join(framework.TestContext.OutputDir, httpYaml), nsFlag)
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// Since both containers start rapidly, we can easily run this test in parallel.
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var wg sync.WaitGroup
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passed := true
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checkRestart := func(podName string, timeout time.Duration) {
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err := framework.WaitForPodNameRunningInNamespace(c, podName, ns)
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Expect(err).NotTo(HaveOccurred())
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for t := time.Now(); time.Since(t) < timeout; time.Sleep(framework.Poll) {
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pod, err := c.Pods(ns).Get(podName)
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framework.ExpectNoError(err, fmt.Sprintf("getting pod %s", podName))
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stat := api.GetExistingContainerStatus(pod.Status.ContainerStatuses, podName)
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framework.Logf("Pod: %s, restart count:%d", stat.Name, stat.RestartCount)
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if stat.RestartCount > 0 {
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framework.Logf("Saw %v restart, succeeded...", podName)
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wg.Done()
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return
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}
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}
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framework.Logf("Failed waiting for %v restart! ", podName)
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passed = false
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wg.Done()
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}
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By("Check restarts")
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// Start the "actual test", and wait for both pods to complete.
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// If 2 fail: Something is broken with the test (or maybe even with liveness).
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// If 1 fails: Its probably just an error in the examples/ files themselves.
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wg.Add(2)
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for _, c := range []string{"liveness-http", "liveness-exec"} {
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go checkRestart(c, 2*time.Minute)
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}
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wg.Wait()
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if !passed {
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framework.Failf("At least one liveness example failed. See the logs above.")
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}
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})
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})
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framework.KubeDescribe("Secret", func() {
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It("should create a pod that reads a secret", func() {
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mkpath := func(file string) string {
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path := filepath.Join("test/fixtures/doc-yaml/user-guide/secrets", file)
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ExpectNoError(framework.CreateFileForGoBinData(path, path))
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return path
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}
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secretYaml := mkpath("secret.yaml")
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podYaml := mkpath("secret-pod.yaml")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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podName := "secret-test-pod"
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By("creating secret and pod")
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framework.RunKubectlOrDie("create", "-f", filepath.Join(framework.TestContext.OutputDir, secretYaml), nsFlag)
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framework.RunKubectlOrDie("create", "-f", filepath.Join(framework.TestContext.OutputDir, podYaml), nsFlag)
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err := framework.WaitForPodNoLongerRunningInNamespace(c, podName, ns, "")
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Expect(err).NotTo(HaveOccurred())
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By("checking if secret was read correctly")
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_, err = framework.LookForStringInLog(ns, "secret-test-pod", "test-container", "value-1", serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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})
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})
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framework.KubeDescribe("Downward API", func() {
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It("should create a pod that prints his name and namespace", func() {
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mkpath := func(file string) string {
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path := filepath.Join("test/fixtures/doc-yaml/user-guide/downward-api", file)
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ExpectNoError(framework.CreateFileForGoBinData(path, path))
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return path
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}
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podYaml := mkpath("dapi-pod.yaml")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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podName := "dapi-test-pod"
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By("creating the pod")
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framework.RunKubectlOrDie("create", "-f", filepath.Join(framework.TestContext.OutputDir, podYaml), nsFlag)
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err := framework.WaitForPodNoLongerRunningInNamespace(c, podName, ns, "")
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Expect(err).NotTo(HaveOccurred())
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By("checking if name and namespace were passed correctly")
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_, err = framework.LookForStringInLog(ns, podName, "test-container", fmt.Sprintf("MY_POD_NAMESPACE=%v", ns), serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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_, err = framework.LookForStringInLog(ns, podName, "test-container", fmt.Sprintf("MY_POD_NAME=%v", podName), serverStartTimeout)
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Expect(err).NotTo(HaveOccurred())
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})
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})
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framework.KubeDescribe("RethinkDB", func() {
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It("should create and stop rethinkdb servers", func() {
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mkpath := func(file string) string {
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return filepath.Join(framework.TestContext.RepoRoot, "examples/storage/rethinkdb", file)
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}
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driverServiceYaml := mkpath("driver-service.yaml")
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rethinkDbControllerYaml := mkpath("rc.yaml")
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adminPodYaml := mkpath("admin-pod.yaml")
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adminServiceYaml := mkpath("admin-service.yaml")
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nsFlag := fmt.Sprintf("--namespace=%v", ns)
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By("starting rethinkdb")
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framework.RunKubectlOrDie("create", "-f", driverServiceYaml, nsFlag)
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framework.RunKubectlOrDie("create", "-f", rethinkDbControllerYaml, nsFlag)
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label := labels.SelectorFromSet(labels.Set(map[string]string{"db": "rethinkdb"}))
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err := framework.WaitForPodsWithLabelRunning(c, ns, label)
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Expect(err).NotTo(HaveOccurred())
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checkDbInstances := func() {
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forEachPod("db", "rethinkdb", func(pod api.Pod) {
|
|
_, err = framework.LookForStringInLog(ns, pod.Name, "rethinkdb", "Server ready", serverStartTimeout)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
}
|
|
checkDbInstances()
|
|
err = framework.WaitForEndpoint(c, ns, "rethinkdb-driver")
|
|
Expect(err).NotTo(HaveOccurred())
|
|
|
|
By("scaling rethinkdb")
|
|
framework.ScaleRC(c, ns, "rethinkdb-rc", 2, true)
|
|
checkDbInstances()
|
|
|
|
By("starting admin")
|
|
framework.RunKubectlOrDie("create", "-f", adminServiceYaml, nsFlag)
|
|
framework.RunKubectlOrDie("create", "-f", adminPodYaml, nsFlag)
|
|
err = framework.WaitForPodNameRunningInNamespace(c, "rethinkdb-admin", ns)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
checkDbInstances()
|
|
content, err := makeHttpRequestToService(c, ns, "rethinkdb-admin", "/", framework.EndpointRegisterTimeout)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
if !strings.Contains(content, "<title>RethinkDB Administration Console</title>") {
|
|
framework.Failf("RethinkDB console is not running")
|
|
}
|
|
})
|
|
})
|
|
|
|
framework.KubeDescribe("Hazelcast", func() {
|
|
It("should create and scale hazelcast", func() {
|
|
framework.Skipf("Skipping because of upstream race condition. Remove Skip when https://github.com/pires/hazelcast-kubernetes-bootstrapper/issues/9 is fixed")
|
|
|
|
mkpath := func(file string) string {
|
|
return filepath.Join(framework.TestContext.RepoRoot, "examples/storage/hazelcast", file)
|
|
}
|
|
serviceYaml := mkpath("hazelcast-service.yaml")
|
|
controllerYaml := mkpath("hazelcast-controller.yaml")
|
|
nsFlag := fmt.Sprintf("--namespace=%v", ns)
|
|
|
|
By("starting hazelcast")
|
|
framework.RunKubectlOrDie("create", "-f", serviceYaml, nsFlag)
|
|
framework.RunKubectlOrDie("create", "-f", controllerYaml, nsFlag)
|
|
label := labels.SelectorFromSet(labels.Set(map[string]string{"name": "hazelcast"}))
|
|
err := framework.WaitForPodsWithLabelRunning(c, ns, label)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
forEachPod("name", "hazelcast", func(pod api.Pod) {
|
|
_, err := framework.LookForStringInLog(ns, pod.Name, "hazelcast", "Members [1]", serverStartTimeout)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
_, err = framework.LookForStringInLog(ns, pod.Name, "hazelcast", "is STARTED", serverStartTimeout)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
|
|
err = framework.WaitForEndpoint(c, ns, "hazelcast")
|
|
Expect(err).NotTo(HaveOccurred())
|
|
|
|
By("scaling hazelcast")
|
|
framework.ScaleRC(c, ns, "hazelcast", 2, true)
|
|
forEachPod("name", "hazelcast", func(pod api.Pod) {
|
|
_, err := framework.LookForStringInLog(ns, pod.Name, "hazelcast", "Members [2]", serverStartTimeout)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
})
|
|
})
|
|
})
|
|
|
|
func makeHttpRequestToService(c *client.Client, ns, service, path string, timeout time.Duration) (string, error) {
|
|
var result []byte
|
|
var err error
|
|
for t := time.Now(); time.Since(t) < timeout; time.Sleep(framework.Poll) {
|
|
proxyRequest, errProxy := framework.GetServicesProxyRequest(c, c.Get())
|
|
if errProxy != nil {
|
|
break
|
|
}
|
|
result, err = proxyRequest.Namespace(ns).
|
|
Name(service).
|
|
Suffix(path).
|
|
Do().
|
|
Raw()
|
|
if err != nil {
|
|
break
|
|
}
|
|
}
|
|
return string(result), err
|
|
}
|
|
|
|
// pass enough context with the 'old' parameter so that it replaces what your really intended.
|
|
func prepareResourceWithReplacedString(inputFile, old, new string) string {
|
|
f, err := os.Open(inputFile)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
defer f.Close()
|
|
data, err := ioutil.ReadAll(f)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
podYaml := strings.Replace(string(data), old, new, 1)
|
|
return podYaml
|
|
}
|