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Merge pull request #27778 from screeley44/k8-vol-executor

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Add Events for operation_executor to show status of mounts, failed/successful to show in describe events

Fixes #27590 
@saad-ali @pmorie @erinboyd

After talking with @pmorie last week about the above issue, I decided to poke around and see if I could remedy.  The refactoring broke my previous UXP merged PR's that correctly showed failed mount errors in the describe events.  However, Not sure I implemented correctly, but it tested out and seems to be working, let me know what I missed or if this is not the correct approach.

```
Events:
  FirstSeen	LastSeen	Count	From			SubobjectPath	Type		Reason		Message
  ---------	--------	-----	----			-------------	--------	------		-------
  2m		2m		1	{default-scheduler }			Normal		Scheduled	Successfully assigned nfs-bb-pod1 to 127.0.0.1
  44s		44s		1	{kubelet 127.0.0.1}			Warning		FailedMount	Unable to mount volumes for pod "nfs-bb-pod1_default(a94f64f1-37c9-11e6-9aa5-52540073d346)": timeout expired waiting for volumes to attach/mount for pod "nfs-bb-pod1"/"default". list of unattached/unmounted volumes=[nfsvol]
  44s		44s		1	{kubelet 127.0.0.1}			Warning		FailedSync	Error syncing pod, skipping: timeout expired waiting for volumes to attach/mount for pod "nfs-bb-pod1"/"default". list of unattached/unmounted volumes=[nfsvol]
  38s		38s		1	{kubelet }				Warning		FailedMount	Unable to mount volumes for pod "a94f64f1-37c9-11e6-9aa5-52540073d346": Mount failed: exit status 32
Mounting arguments: nfs1.rhs:/opt/data99 /var/lib/kubelet/pods/a94f64f1-37c9-11e6-9aa5-52540073d346/volumes/kubernetes.io~nfs/nfsvol nfs []
Output: mount.nfs: Connection timed out

Resolution hint: Check and make sure the NFS Server exists (ensure that correct IPAddress/Hostname was given) and is available/reachable.
Also make sure firewall ports are open on both client and NFS Server (2049 v4 and 2049, 20048 and 111 for v3).
Use commands telnet <nfs server> <port> and showmount <nfs server> to help test connectivity.
```
This commit is contained in:
Kubernetes Submit Queue
2016-08-19 08:27:48 -07:00
committed by GitHub
parent 0bef4243cd 782d7d9815
commit 6ce405c6ee
12 changed files with 80 additions and 30 deletions
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17
cmd/kube-controller-manager/app/controllermanager.go
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@@ -157,8 +157,13 @@ func Run(s *options.CMServer) error {
glog.Fatal(server.ListenAndServe())
}()
eventBroadcaster := record.NewBroadcaster()
eventBroadcaster.StartLogging(glog.Infof)
eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))
recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controller-manager"})
run := func(stop <-chan struct{}) {
err := StartControllers(s, kubeClient, kubeconfig, stop)
err := StartControllers(s, kubeClient, kubeconfig, stop, recorder)
glog.Fatalf("error running controllers: %v", err)
panic("unreachable")
}
@@ -168,11 +173,6 @@ func Run(s *options.CMServer) error {
panic("unreachable")
}
eventBroadcaster := record.NewBroadcaster()
eventBroadcaster.StartLogging(glog.Infof)
eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))
recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controller-manager"})
id, err := os.Hostname()
if err != nil {
return err
@@ -199,7 +199,7 @@ func Run(s *options.CMServer) error {
panic("unreachable")
}
func StartControllers(s *options.CMServer, kubeClient *client.Client, kubeconfig *restclient.Config, stop <-chan struct{}) error {
func StartControllers(s *options.CMServer, kubeClient *client.Client, kubeconfig *restclient.Config, stop <-chan struct{}, recorder record.EventRecorder) error {
sharedInformers := informers.NewSharedInformerFactory(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "shared-informers")), ResyncPeriod(s)())
go endpointcontroller.NewEndpointController(sharedInformers.Pods().Informer(), clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "endpoint-controller"))).
@@ -447,7 +447,8 @@ func StartControllers(s *options.CMServer, kubeClient *client.Client, kubeconfig
sharedInformers.PersistentVolumeClaims().Informer(),
sharedInformers.PersistentVolumes().Informer(),
cloud,
ProbeAttachableVolumePlugins(s.VolumeConfiguration))
ProbeAttachableVolumePlugins(s.VolumeConfiguration),
recorder)
if attachDetachControllerErr != nil {
glog.Fatalf("Failed to start attach/detach controller: %v", attachDetachControllerErr)
}