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Rework pod waiting mechanism in e2e tests to accept pod and watch based

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on its ResourceVersion to make sure we catch all the events.
This commit is contained in:
Maciej Szulik
2016-06-29 09:19:26 +02:00
parent ecebdb5707
commit 17788bb1e0
18 changed files with 126 additions and 107 deletions
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49
test/e2e/framework/util.go
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@@ -1178,18 +1178,31 @@ func CheckInvariants(events []watch.Event, fns ...InvariantFunc) error {
// Waits default amount of time (PodStartTimeout) for the specified pod to become running.
// Returns an error if timeout occurs first, or pod goes in to failed state.
func WaitForPodRunningInNamespace(c *client.Client, podName string, namespace string) error {
return waitTimeoutForPodRunningInNamespace(c, podName, namespace, PodStartTimeout)
func WaitForPodRunningInNamespace(c *client.Client, pod *api.Pod) error {
// this short-cicuit is needed for cases when we pass a list of pods instead
// of newly created pod (eg. VerifyPods) which means we are getting already
// running pod for which waiting does not make sense and will always fail
if pod.Status.Phase == api.PodRunning {
return nil
}
return waitTimeoutForPodRunningInNamespace(c, pod.Name, pod.Namespace, pod.ResourceVersion, PodStartTimeout)
}
// Waits default amount of time (PodStartTimeout) for the specified pod to become running.
// Returns an error if timeout occurs first, or pod goes in to failed state.
func WaitForPodNameRunningInNamespace(c *client.Client, podName, namespace string) error {
return waitTimeoutForPodRunningInNamespace(c, podName, namespace, "", PodStartTimeout)
}
// Waits an extended amount of time (slowPodStartTimeout) for the specified pod to become running.
// Returns an error if timeout occurs first, or pod goes in to failed state.
func waitForPodRunningInNamespaceSlow(c *client.Client, podName string, namespace string) error {
return waitTimeoutForPodRunningInNamespace(c, podName, namespace, slowPodStartTimeout)
// The resourceVersion is used when Watching object changes, it tells since when we care
// about changes to the pod. Returns an error if timeout occurs first, or pod goes in to failed state.
func waitForPodRunningInNamespaceSlow(c *client.Client, podName, namespace, resourceVersion string) error {
return waitTimeoutForPodRunningInNamespace(c, podName, namespace, resourceVersion, slowPodStartTimeout)
}
func waitTimeoutForPodRunningInNamespace(c *client.Client, podName string, namespace string, timeout time.Duration) error {
w, err := c.Pods(namespace).Watch(api.SingleObject(api.ObjectMeta{Name: podName}))
func waitTimeoutForPodRunningInNamespace(c *client.Client, podName, namespace, resourceVersion string, timeout time.Duration) error {
w, err := c.Pods(namespace).Watch(api.SingleObject(api.ObjectMeta{Name: podName, ResourceVersion: resourceVersion}))
if err != nil {
return err
}
@@ -1199,12 +1212,12 @@ func waitTimeoutForPodRunningInNamespace(c *client.Client, podName string, names
// Waits default amount of time (podNoLongerRunningTimeout) for the specified pod to stop running.
// Returns an error if timeout occurs first.
func WaitForPodNoLongerRunningInNamespace(c *client.Client, podName string, namespace string) error {
return waitTimeoutForPodNoLongerRunningInNamespace(c, podName, namespace, podNoLongerRunningTimeout)
func WaitForPodNoLongerRunningInNamespace(c *client.Client, podName, namespace, resourceVersion string) error {
return waitTimeoutForPodNoLongerRunningInNamespace(c, podName, namespace, resourceVersion, podNoLongerRunningTimeout)
}
func waitTimeoutForPodNoLongerRunningInNamespace(c *client.Client, podName string, namespace string, timeout time.Duration) error {
w, err := c.Pods(namespace).Watch(api.SingleObject(api.ObjectMeta{Name: podName}))
func waitTimeoutForPodNoLongerRunningInNamespace(c *client.Client, podName, namespace, resourceVersion string, timeout time.Duration) error {
w, err := c.Pods(namespace).Watch(api.SingleObject(api.ObjectMeta{Name: podName, ResourceVersion: resourceVersion}))
if err != nil {
return err
}
@@ -1212,8 +1225,8 @@ func waitTimeoutForPodNoLongerRunningInNamespace(c *client.Client, podName strin
return err
}
func waitTimeoutForPodReadyInNamespace(c *client.Client, podName string, namespace string, timeout time.Duration) error {
w, err := c.Pods(namespace).Watch(api.SingleObject(api.ObjectMeta{Name: podName}))
func waitTimeoutForPodReadyInNamespace(c *client.Client, podName, namespace, resourceVersion string, timeout time.Duration) error {
w, err := c.Pods(namespace).Watch(api.SingleObject(api.ObjectMeta{Name: podName, ResourceVersion: resourceVersion}))
if err != nil {
return err
}
@@ -1222,8 +1235,10 @@ func waitTimeoutForPodReadyInNamespace(c *client.Client, podName string, namespa
}
// WaitForPodNotPending returns an error if it took too long for the pod to go out of pending state.
func WaitForPodNotPending(c *client.Client, ns, podName string) error {
w, err := c.Pods(ns).Watch(api.SingleObject(api.ObjectMeta{Name: podName}))
// The resourceVersion is used when Watching object changes, it tells since when we care
// about changes to the pod.
func WaitForPodNotPending(c *client.Client, ns, podName, resourceVersion string) error {
w, err := c.Pods(ns).Watch(api.SingleObject(api.ObjectMeta{Name: podName, ResourceVersion: resourceVersion}))
if err != nil {
return err
}
@@ -1618,7 +1633,7 @@ func podsRunning(c *client.Client, pods *api.PodList) []error {
for _, pod := range pods.Items {
go func(p api.Pod) {
error_chan <- WaitForPodRunningInNamespace(c, p.Name, p.Namespace)
error_chan <- WaitForPodRunningInNamespace(c, &p)
}(pod)
}
@@ -3507,7 +3522,7 @@ func LaunchHostExecPod(client *client.Client, ns, name string) *api.Pod {
hostExecPod := NewHostExecPodSpec(ns, name)
pod, err := client.Pods(ns).Create(hostExecPod)
ExpectNoError(err)
err = WaitForPodRunningInNamespace(client, pod.Name, pod.Namespace)
err = WaitForPodRunningInNamespace(client, pod)
ExpectNoError(err)
return pod
}