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Fix failures in up and down services in large clusters

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This commit is contained in:
Wojciech Tyczynski 2016-06-15 13:14:05 +02:00
parent 3c822c0b3c
commit 9961b8021b
1 changed files with 10 additions and 9 deletions
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17
test/e2e/service.go
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@ -943,12 +943,12 @@ var _ = framework.KubeDescribe("Services", func() {
svcName := fmt.Sprintf("%v.%v", serviceName, f.Namespace.Name) svcName := fmt.Sprintf("%v.%v", serviceName, f.Namespace.Name)
By("waiting for endpoints of Service with DNS name " + svcName) By("waiting for endpoints of Service with DNS name " + svcName)
createExecPodOrFail(f.Client, f.Namespace.Name, "exec") execPodName := createExecPodOrFail(f.Client, f.Namespace.Name, "execpod-")
cmd := fmt.Sprintf("wget -qO- %v", svcName) cmd := fmt.Sprintf("wget -qO- %v", svcName)
var stdout string var stdout string
if pollErr := wait.PollImmediate(framework.Poll, kubeProxyLagTimeout, func() (bool, error) { if pollErr := wait.PollImmediate(framework.Poll, kubeProxyLagTimeout, func() (bool, error) {
var err error var err error
stdout, err = framework.RunHostCmd(f.Namespace.Name, "exec", cmd) stdout, err = framework.RunHostCmd(f.Namespace.Name, execPodName, cmd)
if err != nil { if err != nil {
framework.Logf("expected un-ready endpoint for Service %v, stdout: %v, err %v", t.name, stdout, err) framework.Logf("expected un-ready endpoint for Service %v, stdout: %v, err %v", t.name, stdout, err)
return false, nil return false, nil
@ -1094,12 +1094,13 @@ func validateEndpointsOrFail(c *client.Client, namespace, serviceName string, ex
// createExecPodOrFail creates a simple busybox pod in a sleep loop used as a // createExecPodOrFail creates a simple busybox pod in a sleep loop used as a
// vessel for kubectl exec commands. // vessel for kubectl exec commands.
func createExecPodOrFail(c *client.Client, ns, name string) { // Returns the name of the created pod.
func createExecPodOrFail(c *client.Client, ns, generateName string) string {
framework.Logf("Creating new exec pod") framework.Logf("Creating new exec pod")
immediate := int64(0) immediate := int64(0)
pod := &api.Pod{ pod := &api.Pod{
ObjectMeta: api.ObjectMeta{ ObjectMeta: api.ObjectMeta{
Name: name, GenerateName: generateName,
Namespace: ns, Namespace: ns,
}, },
Spec: api.PodSpec{ Spec: api.PodSpec{
@ -1113,16 +1114,17 @@ func createExecPodOrFail(c *client.Client, ns, name string) {
}, },
}, },
} }
_, err := c.Pods(ns).Create(pod) created, err := c.Pods(ns).Create(pod)
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
err = wait.PollImmediate(framework.Poll, 5*time.Minute, func() (bool, error) { err = wait.PollImmediate(framework.Poll, 5*time.Minute, func() (bool, error) {
retrievedPod, err := c.Pods(pod.Namespace).Get(pod.Name) retrievedPod, err := c.Pods(pod.Namespace).Get(created.Name)
if err != nil { if err != nil {
return false, nil return false, nil
} }
return retrievedPod.Status.Phase == api.PodRunning, nil return retrievedPod.Status.Phase == api.PodRunning, nil
}) })
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
return created.Name
} }
func createPodOrFail(c *client.Client, ns, name string, labels map[string]string, containerPorts []api.ContainerPort) { func createPodOrFail(c *client.Client, ns, name string, labels map[string]string, containerPorts []api.ContainerPort) {
@ -1406,8 +1408,7 @@ func stopServeHostnameService(c *client.Client, ns, name string) error {
// in the cluster. Each pod in the service is expected to echo its name. These // in the cluster. Each pod in the service is expected to echo its name. These
// names are compared with the given expectedPods list after a sort | uniq. // names are compared with the given expectedPods list after a sort | uniq.
func verifyServeHostnameServiceUp(c *client.Client, ns, host string, expectedPods []string, serviceIP string, servicePort int) error { func verifyServeHostnameServiceUp(c *client.Client, ns, host string, expectedPods []string, serviceIP string, servicePort int) error {
execPodName := "execpod" execPodName := createExecPodOrFail(c, ns, "execpod-")
createExecPodOrFail(c, ns, execPodName)
defer func() { defer func() {
deletePodOrFail(c, ns, execPodName) deletePodOrFail(c, ns, execPodName)
}() }()