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Kubelet Volume Attach/Detach/Mount/Unmount Redesign
This PR redesigns the Volume Attach/Detach/Mount/Unmount in Kubelet as proposed in https://github.com/kubernetes/kubernetes/issues/21931
```release-note
A new volume manager was introduced in kubelet that synchronizes volume mount/unmount (and attach/detach, if attach/detach controller is not enabled).
This eliminates the race conditions between the pod creation loop and the orphaned volumes loops. It also removes the unmount/detach from the `syncPod()` path so volume clean up never blocks the `syncPod` loop.
```
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federation: choosing a default federation name in test instead of failing
The tests are failing right now:
http://kubekins.dls.corp.google.com/job/kubernetes-e2e-gce-federation/
```
[k8s.io] Service [Feature:Federation] should be able to discover a non-local federated service
/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/test/e2e/federated-service.go:130 Jun 14 12:40:35.091: FEDERATION_NAME environment variable must be set
[k8s.io] Service [Feature:Federation] should be able to discover a federated service
/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/test/e2e/federated-service.go:130 Jun 14 12:40:40.802: FEDERATION_NAME environment variable must be set
```
This is to fix them.
cc @kubernetes/sig-cluster-federation @mml
This commit adds a new volume manager in kubelet that synchronizes
volume mount/unmount (and attach/detach, if attach/detach controller
is not enabled).
This eliminates the race conditions between the pod creation loop
and the orphaned volumes loops. It also removes the unmount/detach
from the `syncPod()` path so volume clean up never blocks the
`syncPod` loop.
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Make timeout for starting system pods configurable
Context: in 2000-node clusters (if only one node is big enough to fit heapster, which is our testing configuration), heapster won't be scheduled until that node has route. However, creating routes is pretty expensive and currently can take even 2 hours.
@zmerlynn @gmarek
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Add image pulling node e2e
Fixes#27007.
Based on #27309, will rebase after #27309 gets merged.
This PR added all tests mentioned in #27007:
* Pull an image from invalid registry;
* Pull an invalid image from gcr;
* Pull an image from gcr;
* Pull an image from docker hub;
* Pull an image needs auth with/without secrets.
For the imagePullSecrets test, I created a new gcloud project "authenticated-image-pulling", and the service account in the code only has "Storage Object Viewer" permission.
/cc @pwittrock @vishh
[]()
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Add description to created node images
Make it a little easier to see who to contact about important node e2e images.
The number of pods to start must be non-zero.
Otherwise the function waits for pods forever if waitForRunning is true.
It the number of replicas is zero, panic so the mistake is heard all over the e2e realm.
Update all callers of StartPods to test for non-zero number of replicas.
