Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
CSI fix for gRPC conn leak
**What this PR does / why we need it**:
This PR is a bug fix for leaky gRPC connection that never closes (see issue #64341 for detail)
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#64341
This fix was originally started with PR https://github.com/kubernetes/kubernetes/pull/64380
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 63348, 63839, 63143, 64447, 64567). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Add block volume support to internal provisioners.
**What this PR does / why we need it**:
Internal provisioners now create filesystem PVs when block PVs are requested. This leads to unbindable PVCs.
In this PR, volume plugins that support block volumes provision block PVs when block is requested. All the other provisioners return clear error in `kubectl describe pvc`:
```
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning ProvisioningFailed 7s (x2 over 18s) persistentvolume-controller Failed to provision volume with StorageClass "standard": kubernetes.io/cinder does not support block volume provisioning
```
```release-note
NONE
```
cc @kubernetes/vmware for vsphere changes
cc @andyzhangx for Azure changes
/assign @copejon @mtanino
Automatic merge from submit-queue (batch tested with PRs 63348, 63839, 63143, 64447, 64567). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Containerized subpath
**What this PR does / why we need it**:
Containerized kubelet needs a different implementation of `PrepareSafeSubpath` than kubelet running directly on the host.
On the host we safely open the subpath and then bind-mount `/proc/<pidof kubelet>/fd/<descriptor of opened subpath>`.
With kubelet running in a container, `/proc/xxx/fd/yy` on the host contains path that works only inside the container, i.e. `/rootfs/path/to/subpath` and thus any bind-mount on the host fails.
Solution:
- safely open the subpath and gets its device ID and inode number
- blindly bind-mount the subpath to `/var/lib/kubelet/pods/<uid>/volume-subpaths/<name of container>/<id of mount>`. This is potentially unsafe, because user can change the subpath source to a link to a bad place (say `/run/docker.sock`) just before the bind-mount.
- get device ID and inode number of the destination. Typical users can't modify this file, as it lies on /var/lib/kubelet on the host.
- compare these device IDs and inode numbers.
**Which issue(s) this PR fixes**
Fixes#61456
**Special notes for your reviewer**:
The PR contains some refactoring of `doBindSubPath` to extract the common code. New `doNsEnterBindSubPath` is added for the nsenter related parts.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 64013, 63896, 64139, 57527, 62102). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Simplify the volume util by v1helper.
Signed-off-by: Da K. Ma <klaus1982.cn@gmail.com>
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 64102, 63303, 64150, 63841). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
add block device support for azure disk
**What this PR does / why we need it**:
add block device support for azure disk
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#61821
**Special notes for your reviewer**:
detailed steps about how it work:
https://github.com/andyzhangx/demo/tree/master/linux/block/azuredisk
**Release note**:
```
add block device support for azure disk
```
@karataliu @feiskyer @khenidak
Automatic merge from submit-queue (batch tested with PRs 64102, 63303, 64150, 63841). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Return attach error to A/D controller.
The plugin should not wait with errors for WaitForAttach, WaitForAttach runs on nodes, not in A/D controller.
**Which issue(s) this PR fixes**
Fixes#63300
~~Work in progress, missing testing.~~
**Release note**:
```release-note
NONE
```
/sig storage
@saad-ali @vladimirvivien
Automatic merge from submit-queue (batch tested with PRs 63830, 63579, 64173). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix iSCSI and RBD UnmountDevice with mount containers.
Google's [configure-helper.sh](https://github.com/kubernetes/kubernetes/blob/master/cluster/gce/gci/configure-helper.sh) script bind-mounts `/var/lib/kubelet` somewhere into `/home/kubernetes` and thus every mount that Kubernetes does is visible **twice** in `/proc/mounts`.
iSCSI and RBD volume plugins should not rely on counting entries in `/proc/mounts` and unmount device when Kubernetes thinks it's unusued. Kubernetes tracks the mounts by itself and most of other volume plugins already rely on it safely.
/sig storage
Fixes#56704
(well, it does not fix it, but it makes Kubernetes working with double mounts)
**Release note**:
```release-note
NONE
```
@rootfs, PTAL
Automatic merge from submit-queue (batch tested with PRs 63914, 63887, 64116, 64026, 62933). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Enable SELinux relabeling in CSI volumes
**What this PR does / why we need it**:
CSI volume plugin should provide correct information in `GetAttributes` call so kubelet can ask container runtime to relabel the volume. Therefore CSI volume plugin needs to check if a random volume mounted by a CSI driver supports SELinux or not by checking for "seclabel" mount or superblock option.
**Which issue(s) this PR fixes**
Fixes#63965
**Release note**:
```release-note
NONE
```
@saad-ali @vladimirvivien @davidz627
@cofyc, FYI, I'm changing `struct mountInfo`.
Automatic merge from submit-queue (batch tested with PRs 63569, 63918, 63980, 63295, 63989). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fixed CSI volume detach when the volume is already detached.
**What this PR does / why we need it**:
"VolumeAttachment NotFound" error should be treated as successful detach.
/sig storage
/assign @vladimirvivien @saad-ali
**Special notes for your reviewer**:
Note that the PR changes just 4 lines in attachment code, the rest is unit test refactoring to inject fake errors.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 63424, 63657). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix#63183 Pods on different nodes mount Ceph RBD PVC stuck on ContainerCreating
**What this PR does / why we need it**:
Ceph/RBD pvc can be attached on different nodes when use ReadOnlyMany.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#63183
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 59034, 63565, 63533). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
[RBD block device ]ignore the loopbackdevice error, or the rbd volume will not get detached
The rbd volume loop device maybe not found and then the volume will not get detached.
so need to ignore the error.
@mtanino @sbezverk
Can you take a look?
Release note:
```
ignore the loopback device not found error when `GetLoopDevice`
```
Google's configure-helper.sh script bind-mounts /var/lib/kubelet somewhere
into /home/kubernetes and thus every mount that Kubernetes does is visible
twice in /proc/mounts.
iSCSI and RBD should not rely on counting on entries in /proc/mounts and
unmount device when Kubernetes thinks it's unusued. Kubernetes tracks
the mounts by itself and most of other volume plugins rely on it safely.
Automatic merge from submit-queue (batch tested with PRs 63298, 63339). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
kubelet: volume: do not create event on mount success
xref https://github.com/openshift/origin/issues/19497
There is an argument to be made that we should not emit events on volume mount successes. Many pods have lots of volumes that generate lots of events, especially if the pods are short lived (batch, etc). This creates load on the API server and add noise in the events.
Creating events on volume mount failures is obviously a good idea. Seems like the absence of such events or the "Started container" event implies mount success for all volumes.
/sig node
/sig storage
/release-note-none
@smarterclayton @jsafrane @saad-ali
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
aws, azure: replace path with filepath
**What this PR does / why we need it**:
This PR replaces usage of `path` with `filepath` as it uses OS-specific path separators.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#62916
**Special notes for your reviewer**:
This PR addresses the following volume plugins:
- `pkg/volume/aws_ebs`
- `pkg/volume/azure_dd`
- `pkg/volume/azure_file`
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 61725, 63261). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Use cloudprovider.NotImplemented in AddSSHKeyToAllInstances
**What this PR does / why we need it**:
Minor cleanup: In looking at implementations of this method,
noticed a few providers created their own errors instead of using cloudprovider.NotImplemented
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 62657, 63278, 62903, 63375). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Add more volume types in e2e and fix part of them.
**What this PR does / why we need it**:
- Add dir-link/dir-bindmounted/dir-link-bindmounted/bockfs volume types for e2e tests.
- Fix fsGroup related e2e tests partially.
- Return error if we cannot resolve volume path.
- Because we should not fallback to volume path, if it's a symbolic link, we may get wrong results.
To safely set fsGroup on local volume, we need to implement these two methods correctly for all volume types both on the host and in container:
- get volume path kubelet can access
- paths on the host and in container are different
- get mount references
- for directories, we cannot use its mount source (device field) to identify mount references, because directories on same filesystem have same mount source (e.g. tmpfs), we need to check filesystem's major:minor and directory root path on it
Here is current status:
| | (A) volume-path (host) | (B) volume-path (container) | (C) mount-refs (host) | (D) mount-refs (container) |
| --- | --- | --- | --- | --- |
| (1) dir | OK | FAIL | FAIL | FAIL |
| (2) dir-link | OK | FAIL | FAIL | FAIL |
| (3) dir-bindmounted | OK | FAIL | FAIL | FAIL |
| (4) dir-link-bindmounted | OK | FAIL | FAIL | FAIL |
| (5) tmpfs| OK | FAIL | FAIL | FAIL |
| (6) blockfs| OK | FAIL | OK | FAIL |
| (7) block| NOTNEEDED | NOTNEEDED | NOTNEEDED | NOTNEEDED |
| (8) gce-localssd-scsi-fs| NOTTESTED | NOTTESTED | NOTTESTED | NOTTESTED |
- This PR uses `nsenter ... readlink` to resolve path in container as @msau42 @jsafrane [suggested](https://github.com/kubernetes/kubernetes/pull/61489#pullrequestreview-110032850). This fixes B1:B6 and D6, , the rest will be addressed in https://github.com/kubernetes/kubernetes/pull/62102.
- C5:D5 marked `FAIL` because `tmpfs` filesystems can share same mount source, we cannot rely on it to check mount references. e2e tests passes due to we use unique mount source string in tests.
- A7:D7 marked `NOTNEEDED` because we don't set fsGroup on block devices in local plugin. (TODO: Should we set fsGroup on block device?)
- A8:D8 marked `NOTTESTED` because I didn't test it, I leave it to `pull-kubernetes-e2e-gce`. I think it should be same as `blockfs`.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Update all script shebangs to use /usr/bin/env interpreter instead of /bin/interpreter
This is required to support systems where bash doesn't reside in /bin (such as NixOS, or the *BSD family) and allow users to specify a different interpreter version through $PATH manipulation.
https://www.cyberciti.biz/tips/finding-bash-perl-python-portably-using-env.html
```release-note
Use /usr/bin/env in all script shebangs to increase portability.
```
Minor cleanup: In looking at implementations of this method,
noticed a few providers created their own errors instead of using cloudprovider.NotImplemented
Automatic merge from submit-queue (batch tested with PRs 63251, 59166, 63250, 63180, 63169). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
clean one redundant comment of rbd.go
**What this PR does / why we need it**:
This is a small PR for cleanup.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
fix cephfs fuse mount bug when user is not admin
**What this PR does / why we need it**:
fix cephfs fuse mount bug when user is not admin
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes https://github.com/kubernetes/kubernetes/issues/59393
**Special notes for your reviewer**:
**Release note**:
```release-note
fix cephfs fuse mount bug when user is not admin
```
Automatic merge from submit-queue (batch tested with PRs 63129, 63066, 60009, 63136, 63086). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
add node shutdown taint
**What this PR does / why we need it**: we need node stopped taint in order to detach volumes immediately without waiting timeout. More info in issue ticket #58635
**Which issue(s) this PR fixes**
Fixes#58635
**Special notes for your reviewer**: this was reverted, original PR https://github.com/kubernetes/kubernetes/pull/59323 Hopefully now bugs are fixed. However, I will execute more tests manually today.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 62590, 62818, 63015, 62922, 63000). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix some bugs inside CSI volume plugin unit test TestAttacherMountDevice
**What this PR does / why we need it**:
Fix two bugs inside CSI volume plugin unit test `TestAttacherMountDevice`.
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 62780, 62886). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Only count local mounts that are from other pods
**What this PR does / why we need it**:
In GCE, we mount the same local SSD in two different paths (for backwards compatability). This makes the fsGroup conflict check fail because it thinks the 2nd mount is from another pod. For the fsgroup check, we only want to detect if other pods are mounting the same volume, so this PR filters the mount list to only those mounts under "/var/lib/kubelet".
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#62867
**Release note**:
```release-note
NONE
```
