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Add error text to kube-system wait error

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On HA API server hiccups we saw a prow job with error:

fail [k8s.io/kubernetes@v1.19.0/test/e2e/e2e.go:284]: Sep 30 17:06:08.313: Error waiting for all pods to be running and ready: 0 / 0 pods in namespace "kube-system" are NOT in RUNNING and READY state in 10m0s
POD NODE PHASE GRACE CONDITIONS

The failure should include the last error from API server, if it's
available:

fail [k8s.io/kubernetes@v1.19.0/test/e2e/e2e.go:284]: Oct  1 11:29:45.220: Error waiting for all pods to be running and ready: 0 / 0 pods in namespace "kube-system" are NOT in RUNNING and READY state in 10m0s
Last error: Get "https://localhost:6443/api/v1/namespaces/kube-system/replicationcontrollers": dial tcp [::1]:6443: connect: connection refused
POD NODE PHASE GRACE CONDITIONS
This commit is contained in:
Jan Safranek 2020-10-01 13:33:14 +02:00
parent ef33126cc7
commit 6e85ebd0cd
1 changed files with 11 additions and 2 deletions
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13
test/e2e/framework/pod/wait.go
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@ -67,8 +67,11 @@ const (
type podCondition func(pod *v1.Pod) (bool, error) type podCondition func(pod *v1.Pod) (bool, error)
// errorBadPodsStates create error message of basic info of bad pods for debugging. // errorBadPodsStates create error message of basic info of bad pods for debugging.
func errorBadPodsStates(badPods []v1.Pod, desiredPods int, ns, desiredState string, timeout time.Duration) string { func errorBadPodsStates(badPods []v1.Pod, desiredPods int, ns, desiredState string, timeout time.Duration, err error) string {
errStr := fmt.Sprintf("%d / %d pods in namespace %q are NOT in %s state in %v\n", len(badPods), desiredPods, ns, desiredState, timeout) errStr := fmt.Sprintf("%d / %d pods in namespace %q are NOT in %s state in %v\n", len(badPods), desiredPods, ns, desiredState, timeout)
if err != nil {
errStr += fmt.Sprintf("Last error: %s\n", err)
}
// Print bad pods info only if there are fewer than 10 bad pods // Print bad pods info only if there are fewer than 10 bad pods
if len(badPods) > 10 { if len(badPods) > 10 {
return errStr + "There are too many bad pods. Please check log for details." return errStr + "There are too many bad pods. Please check log for details."
@ -110,6 +113,7 @@ func WaitForPodsRunningReady(c clientset.Interface, ns string, minPods, allowedN
badPods := []v1.Pod{} badPods := []v1.Pod{}
desiredPods := 0 desiredPods := 0
notReady := int32(0) notReady := int32(0)
var lastAPIError error
if wait.PollImmediate(poll, timeout, func() (bool, error) { if wait.PollImmediate(poll, timeout, func() (bool, error) {
// We get the new list of pods, replication controllers, and // We get the new list of pods, replication controllers, and
@ -117,10 +121,13 @@ func WaitForPodsRunningReady(c clientset.Interface, ns string, minPods, allowedN
// online during startup and we want to ensure they are also // online during startup and we want to ensure they are also
// checked. // checked.
replicas, replicaOk := int32(0), int32(0) replicas, replicaOk := int32(0), int32(0)
// Clear API error from the last attempt in case the following calls succeed.
lastAPIError = nil
rcList, err := c.CoreV1().ReplicationControllers(ns).List(context.TODO(), metav1.ListOptions{}) rcList, err := c.CoreV1().ReplicationControllers(ns).List(context.TODO(), metav1.ListOptions{})
if err != nil { if err != nil {
e2elog.Logf("Error getting replication controllers in namespace '%s': %v", ns, err) e2elog.Logf("Error getting replication controllers in namespace '%s': %v", ns, err)
lastAPIError = err
if testutils.IsRetryableAPIError(err) { if testutils.IsRetryableAPIError(err) {
return false, nil return false, nil
} }
@ -133,6 +140,7 @@ func WaitForPodsRunningReady(c clientset.Interface, ns string, minPods, allowedN
rsList, err := c.AppsV1().ReplicaSets(ns).List(context.TODO(), metav1.ListOptions{}) rsList, err := c.AppsV1().ReplicaSets(ns).List(context.TODO(), metav1.ListOptions{})
if err != nil { if err != nil {
lastAPIError = err
e2elog.Logf("Error getting replication sets in namespace %q: %v", ns, err) e2elog.Logf("Error getting replication sets in namespace %q: %v", ns, err)
if testutils.IsRetryableAPIError(err) { if testutils.IsRetryableAPIError(err) {
return false, nil return false, nil
@ -146,6 +154,7 @@ func WaitForPodsRunningReady(c clientset.Interface, ns string, minPods, allowedN
podList, err := c.CoreV1().Pods(ns).List(context.TODO(), metav1.ListOptions{}) podList, err := c.CoreV1().Pods(ns).List(context.TODO(), metav1.ListOptions{})
if err != nil { if err != nil {
lastAPIError = err
e2elog.Logf("Error getting pods in namespace '%s': %v", ns, err) e2elog.Logf("Error getting pods in namespace '%s': %v", ns, err)
if testutils.IsRetryableAPIError(err) { if testutils.IsRetryableAPIError(err) {
return false, nil return false, nil
@ -193,7 +202,7 @@ func WaitForPodsRunningReady(c clientset.Interface, ns string, minPods, allowedN
return false, nil return false, nil
}) != nil { }) != nil {
if !ignoreNotReady { if !ignoreNotReady {
return errors.New(errorBadPodsStates(badPods, desiredPods, ns, "RUNNING and READY", timeout)) return errors.New(errorBadPodsStates(badPods, desiredPods, ns, "RUNNING and READY", timeout, lastAPIError))
} }
e2elog.Logf("Number of not-ready pods (%d) is below the allowed threshold (%d).", notReady, allowedNotReadyPods) e2elog.Logf("Number of not-ready pods (%d) is below the allowed threshold (%d).", notReady, allowedNotReadyPods)
} }