Automatic merge from submit-queue (batch tested with PRs 59489, 59716). 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>.
devicemanager testing: dynamically choose tmp dir
This avoids the test issue #59488 that I was running into.
I believe I have a reasonable explanation for the race condition in that issue (TLDR: it's probably part of the gRPC API and k8s can only avoid the issue until a proper solution gets worked out together with gRPC), therefore I suggest to merge this PR now both because it avoids the issue and because using fixed tmp directories is something that should be avoided anyway.
/assign @jiayingz
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>.
Ignore 0% and 100% eviction thresholds
Primarily, this gives a way to explicitly disable eviction, which is
necessary to use omitempty on EvictionHard.
See: https://github.com/kubernetes/kubernetes/pull/53833#discussion_r166672137
As justification for this approach, neither 0% nor 100% make sense as
eviction thresholds; in the "less-than" case, you can't have less than
0% of a resource and 100% perpetually evicts; in the
"greater-than" case (assuming we ever add a resource with this
semantic), the reasoning is the reverse (not more than 100%, 0%
perpetually evicts).
```release-note
Eviction thresholds set to 0% or 100% are now ignored.
```
Automatic merge from submit-queue (batch tested with PRs 59767, 56454, 59237, 59730, 55479). 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>.
Block Volume: Refactor volumehandler in operationexecutor
**What this PR does / why we need it**:
Based on discussion with @saad-ali at #51494, we need refactor volumehandler in operationexecutor
for Block Volume feature. We don't need to add volumehandler as separated object.
```
VolumeHandler does not need to be a separate object that is constructed inline like this.
You can create a new operation, e.g. UnmountOperation to which you pass the spec,
and it can return either a UnmountVolume or UnmapVolume.
```
**Which issue(s) this PR fixes** : no related issue.
**Special notes for your reviewer**:
@saad-ali @msau42
**Release note**:
```release-note
NONE
```
Primarily, this gives a way to explicitly disable eviction, which is
necessary to use omitempty on EvictionHard.
See: https://github.com/kubernetes/kubernetes/pull/53833#discussion_r166672137
As justification for this approach, neither 0% nor 100% make sense as
eviction thresholds; in the "less-than" case, you can't have less than
0% of a resource and 100% perpetually evicts; in the
"greater-than" case (assuming we ever add a resource with this
semantic), the reasoning is the reverse (not more than 100%, 0%
perpetually evicts).
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 all the typos across the project
**What this PR does / why we need it**:
There are lots of typos across the project. We should avoid small PRs on fixing those annoying typos, which is time-consuming and low efficient.
This PR does fix all the typos across the project currently. And with #59463, typos could be avoided when a new PR gets merged.
**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**:
/sig testing
/area test-infra
/sig release
/cc @ixdy
/assign @fejta
**Release note**:
```release-note
None
```
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Bury KubeletConfiguration.ConfigTrialDuration for now
Based on discussion in https://github.com/kubernetes/kubernetes/pull/53833/files#r166669046, this PR chooses not to expose a knob for the trial duration yet. It is unclear exactly which shape this functionality should take in the API.
```release-note
The alpha KubeletConfiguration.ConfigTrialDuration field is no longer available.
```
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>.
devicemanager: increase code coverege of endpoint's unit test
Particularly cover the code path when an unhealthy device
becomes healthy.
Hard-coding the tests to use /tmp/device_plugin for sockets is
problematic because it prevents running tests in parallel on the same
machine (perhaps because there are multiple developers, perhaps
because testing is done independently on different code checkouts).
/tmp/device_plugin also was not removed after testing.
This is probably not that relevant. But more importantly, this change
also fixes https://github.com/kubernetes/kubernetes/issues/59488.
"make test" failed in TestDevicePluginReRegistration because something
removed /tmp/device_plugin/device-plugin.sock while something else
tried to connect to it:
2018/02/07 14:34:39 Starting to serve on /tmp/device_plugin/device-plugin.sock
[pid 29568] connect(14, {sa_family=AF_UNIX, sun_path="/tmp/device_plugin/server.sock"}, 33) = 0
[pid 29568] unlinkat(AT_FDCWD, "/tmp/device_plugin/server.sock", 0) = 0
[pid 29568] unlinkat(AT_FDCWD, "/tmp/device_plugin/device-plugin.sock", 0) = 0
[pid 29568] --- SIGPIPE {si_signo=SIGPIPE, si_code=SI_USER, si_pid=29568, si_uid=1000} ---
[pid 29568] connect(6, {sa_family=AF_UNIX, sun_path="/tmp/device_plugin/device-plugin.sock"}, 40) = -1 ENOENT (No such file or directory)
E0207 14:34:39.961321 29568 endpoint.go:117] listAndWatch ended unexpectedly for device plugin mock with error rpc error: code = Unavailable desc = transport is closing
strace: Process 29623 attached
[pid 29574] connect(3, {sa_family=AF_UNIX, sun_path="/tmp/device_plugin/device-plugin.sock"}, 40) = -1 ENOENT (No such file or directory)
[pid 29623] connect(3, {sa_family=AF_UNIX, sun_path="/tmp/device_plugin/device-plugin.sock"}, 40) = -1 ENOENT (No such file or directory)
[pid 29574] connect(3, {sa_family=AF_UNIX, sun_path="/tmp/device_plugin/device-plugin.sock"}, 40) = -1 ENOENT (No such file or directory)
E0207 14:34:49.961324 29568 endpoint.go:60] Can't create new endpoint with path /tmp/device_plugin/device-plugin.sock err failed to dial device plugin: context deadline exceeded
E0207 14:34:49.961390 29568 manager.go:340] Failed to dial device plugin with request &RegisterRequest{Version:v1alpha2,Endpoint:device-plugin.sock,ResourceName:fake-domain/resource,}: failed to dial device plugin: context deadline exceeded
panic: test timed out after 2m0s
It's not entirely certain which code was to blame for this unlinkat()
calls (perhaps some cleanup code from a previous test running in a
goroutine?) but this no longer happened after switching to per-test
socket directories.
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>.
Add mountpoint as CRI image filesystem storage identifier.
Fixes https://github.com/kubernetes/kubernetes/issues/57356.
This PR changes CRI to use mountpoint as storage identifier. See https://github.com/kubernetes/kubernetes/issues/57356#issuecomment-363608733.
Note that:
1) This doesn't work with devicemapper for now. Please feel free to propose change for device mapper, we can discuss more about this after this first version is merged. @mrunalp @runcom
2) `mountpoint` is added as new field in `StorageIdentifier` now. After https://github.com/kubernetes/kubernetes/pull/58973 is merged, we can remove the UUID field in `v1alpha2`.
/cc @yujuhong @feiskyer @yguo0905 @dashpole @mikebrow @abhi @kubernetes/sig-node-api-reviews
**Release note**:
```release-note
CRI starts using moutpoint as image filesystem identifier instead of UUID.
```
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>.
Redesign and implement volume reconstruction work
This PR is the first part of redesign of volume reconstruction work. The detailed design information is https://github.com/kubernetes/community/pull/1601
The changes include
1. Remove dependency on volume spec stored in actual state for volume
cleanup process (UnmountVolume and UnmountDevice)
Modify AttachedVolume struct to add DeviceMountPath so that volume
unmount operation can use this information instead of constructing from
volume spec
2. Modify reconciler's volume reconstruction process (syncState). Currently workflow
is when kubelet restarts, syncState() is only called once before
reconciler starts its loop.
a. If volume plugin supports reconstruction, it will use the
reconstructed volume spec information to update actual state as before.
b. If volume plugin cannot support reconstruction, it will use the
scanned mount path information to clean up the mounts.
In this PR, all the plugins still support reconstruction (except
glusterfs), so reconstruction of some plugins will still have issues.
The next PR will modify those plugins that cannot support reconstruction
well.
This PR addresses issue #52683
Automatic merge from submit-queue (batch tested with PRs 59344, 59595, 59598). 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>.
Remove unnecessary summary api call.
Summary API call is not as cheap as we think. Especially for CRI container runtime, it means:
1) Extra cgroups parsing (because cpu/memory are considered to be on demand);
2) Extra grpc encoding/decoding `ListPodSandboxes`, `ListContainers`, `ListContainerStats`;
I don't think it is necessary to call summary twice inside the same function.
/cc @kubernetes/sig-node-pr-reviews @dashpole @jingxu97
Signed-off-by: Lantao Liu <lantaol@google.com>
**Release note**:
```release-note
none
```
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Add 'none' option to EnforceNodeAllocatable
This lets us use omitempty on `EnforceNodeAllocatable`. We shouldn't treat
`nil` as different from `[]T{}`, because this can play havoc with
serializers (a-la #43203).
See: https://github.com/kubernetes/kubernetes/pull/53833#discussion_r166672137
```release-note
'none' can now be specified in KubeletConfiguration.EnforceNodeAllocatable (--enforce-node-allocatable) to explicitly disable enforcement.
```
We're about to tear the container down, there's no point. It also suppresses
an annoying error message due to kubelet stupidity that causes multiple
parallel calls to StopPodSandbox for the same sandbox.
docker_sandbox.go:355] failed to read pod IP from plugin/docker: NetworkPlugin cni failed on the status hook for pod "docker-registry-1-deploy_default": Unexpected command output nsenter: cannot open /proc/22646/ns/net: No such file or directory
1) A first StopPodSandbox() request triggered by SyncLoop(PLEG) for
a ContainerDied event calls into TearDownPod() and thus the network
plugin. Until this completes, networkReady=true for the
sandbox.
2) A second StopPodSandbox() request triggered by SyncLoop(REMOVE)
calls PodSandboxStatus() and calls into the network plugin to read
the IP address because networkReady=true
3) The first request exits the network plugin, sets networReady=false,
and calls StopContainer() on the sandbox. This destroys the network
namespace.
4) The second request finally gets around to running nsenter but
the network namespace is already destroyed. It returns an error
which is logged by getIP().
Automatic merge from submit-queue (batch tested with PRs 57824, 58806, 59410, 59280). 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>.
2nd try at using a vanity GCR name
The 2nd commit here is the changes relative to the reverted PR. Please focus review attention on that.
This is the 2nd attempt. The previous try (#57573) was reverted while we
figured out the regional mirrors (oops).
New plan: k8s.gcr.io is a read-only facade that auto-detects your source
region (us, eu, or asia for now) and pulls from the closest. To publish
an image, push k8s-staging.gcr.io and it will be synced to the regionals
automatically (similar to today). For now the staging is an alias to
gcr.io/google_containers (the legacy URL).
When we move off of google-owned projects (working on it), then we just
do a one-time sync, and change the google-internal config, and nobody
outside should notice.
We can, in parallel, change the auto-sync into a manual sync - send a PR
to "promote" something from staging, and a bot activates it. Nice and
visible, easy to keep track of.
xref https://github.com/kubernetes/release/issues/281
TL;DR:
* The new `staging-k8s.gcr.io` is where we push images. It is literally an alias to `gcr.io/google_containers` (the existing repo) and is hosted in the US.
* The contents of `staging-k8s.gcr.io` are automatically synced to `{asia,eu,us)-k8s.gcr.io`.
* The new `k8s.gcr.io` will be a read-only alias to whichever regional repo is closest to you.
* In the future, images will be promoted from `staging` to regional "prod" more explicitly and auditably.
```release-note
Use "k8s.gcr.io" for pulling container images rather than "gcr.io/google_containers". Images are already synced, so this should not impact anyone materially.
Documentation and tools should all convert to the new name. Users should take note of this in case they see this new name in the system.
```
This is the 2nd attempt. The previous was reverted while we figured out
the regional mirrors (oops).
New plan: k8s.gcr.io is a read-only facade that auto-detects your source
region (us, eu, or asia for now) and pulls from the closest. To publish
an image, push k8s-staging.gcr.io and it will be synced to the regionals
automatically (similar to today). For now the staging is an alias to
gcr.io/google_containers (the legacy URL).
When we move off of google-owned projects (working on it), then we just
do a one-time sync, and change the google-internal config, and nobody
outside should notice.
We can, in parallel, change the auto-sync into a manual sync - send a PR
to "promote" something from staging, and a bot activates it. Nice and
visible, easy to keep track of.
Automatic merge from submit-queue (batch tested with PRs 59010, 59212, 59281, 59014, 59297). 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>.
Improve error returned when fetching container logs during pod termination
**What this PR does / why we need it**:
This change better handles fetching of logs when a container is in a crash loop backoff state. In cases where it is unable to fetch the logs, it gives a helpful error message back to a user who has requested logs of a container from a terminated pod. Rather than attempting to get logs for a container using an empty container ID, it returns a useful error message.
In cases where the container runtime gets an error, log the error but don't leak it back through the API to the user.
**Which issue(s) this PR fixes**:
Fixes#59296
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 59276, 51042, 58973, 59377, 59472). 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 up unused function GetKubeletDockerContainers
**What this PR does / why we need it**:
fix todo: function GetKubeletDockerContainers is not unused,it has been migrated off in test/e2e_node/garbage_collector_test.go in [#57976](https://github.com/kubernetes/kubernetes/pull/57976/files)
**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 (batch tested with PRs 59276, 51042, 58973, 59377, 59472). 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 Container Runtime Interface to use enumerated namespace modes
**What this PR does / why we need it**: This updates the CRI as described in the [Shared PID Namespace](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/node/pod-pid-namespace.md#container-runtime-interface-changes) proposal. This change to the alpha API is not backwards compatible: implementations of the CRI will need to update to the new API version.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
WIP #1615
**Special notes for your reviewer**:
/assign @yujuhong
**Release note**:
```release-note
[action-required] The Container Runtime Interface (CRI) version has increased from v1alpha1 to v1alpha2. Runtimes implementing the CRI will need to update to the new version, which configures container namespaces using an enumeration rather than booleans.
```
Automatic merge from submit-queue (batch tested with PRs 59276, 51042, 58973, 59377, 59472). 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: only register api source when connecting
**What this PR does / why we need it**:
before this change, an api source was always registered, even when there
was no kubeclient. this lead to some operations blocking waiting for
podConfig.SeenAllSources to pass, which it never would.
**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#59275
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
This also incorporates the version string into the package name so
that incompatibile versions will fail to connect.
Arbitrary choices:
- The proto3 package name is runtime.v1alpha2. The proto compiler
normally translates this to a go package of "runtime_v1alpha2", but
I renamed it to "v1alpha2" for consistency with existing packages.
- kubelet/apis/cri is used as "internalapi". I left it alone and put the
public "runtimeapi" in kubelet/apis/cri/runtime.
Automatic merge from submit-queue (batch tested with PRs 59441, 58264, 59287, 59396, 59439). 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 context to all relevant cloud APIs
**What this PR does / why we need it**:
This adds context to all the relevant cloud provider interface signatures.
Callers of those APIs are currently satisfied using context.TODO().
There will be follow on PRs to push the context through the stack.
**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#815
**Special notes for your reviewer**:
For an idea of the full scope of this change please look at PR #58532.
**Release note**:
```release-note
Implementers of the cloud provider interface will note the addition of a context to this interface. Trivial code modification will be necessary for a cloud provider to continue to compile.
```
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>.
Add unit test for endpoint allocate
**What this PR does / why we need it**:
Adds a unit test for covering `allocate` function at endpoint.
**Release note**:
```release-note
None
```
/kind testing
/area hw-accelerators
/cc @jiayingz @vishh @derekwaynecarr @RenaudWasTaken @resouer @ConnorDoyle
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Use GlobalMemoryStatusEx to get total physical memory on Windows node
**What this PR does / why we need it**:
This PR fixes issue #57110 due to failure in getting total physical memory on some Windows VM such as in VMWare Fusion or Virtualbox. This change uses GlobalMemoryStatusEx instead of GetPhysicallyInstalledSystemMemory to retrieve total physical memory on Windows node. The amount obtained this way is also closer in parity with reading MemTotal from /proc/meminfo on Linux node.
(thanks to @martinivanov and @marono for the help)
**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#57110
**Special notes for your reviewer**:
**Release note**:
```release-note
```
This adds context to all the relevant cloud provider interface signatures.
Callers of those APIs are currently satisfied using context.TODO().
There will be follow on PRs to push the context through the stack.
For an idea of the full scope of this change please look at PR #58532.
Automatic merge from submit-queue (batch tested with PRs 52942, 58415). 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>.
Improve messaging on volume expansion
- we now provide clear message to user what to do when cloudprovider resizing is finished
and file system resizing is needed.
- add a event when resizing is successful
- Use PATCH both in controller-manager and kubelet for updating PVC status
- Remove code duplication between controller-manager and kubelet for updating PVC status
- Only remove conditions that are managed by resize controller
```release-note
Improve messages user gets during and after volume resizing is done.
```
Automatic merge from submit-queue (batch tested with PRs 58184, 59307, 58172). 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 annotations to the device plugin API
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** : Related to #56649 but does not fix it
This adds the ability for the device plugins to annotate containers.
Product wise, this allows the NVIDIA device plugin to support CRI-O (which allows hooks through container annotations).
**Special notes for your reviewer**:
/area hw-accelerators
/cc @vishh @jiayingz @vikaschoudhary16
I'm wondering if it would make sense to fire a blank call to `newContainerAnnotations` at the start of the deviceplugin to get Annotations that are forbidden.
Current behavior is that any Annotations that conflicts with Kubelet will be overwritten by Kubelet.
**Release note**:
```release-note
NONE
```
This PR is the first part of redesign of volume reconstruction work. The
changes include
1. Remove dependency on volume spec stored in actual state for volume
cleanup process (UnmountVolume and UnmountDevice)
Modify AttachedVolume struct to add DeviceMountPath so that volume
unmount operation can use this information instead of constructing from
volume spec
2. Modify reconciler's volume reconstruction process (syncState). Currently workflow
is when kubelet restarts, syncState() is only called once before
reconciler starts its loop.
a. If volume plugin supports reconstruction, it will use the
reconstructed volume spec information to update actual state as before.
b. If volume plugin cannot support reconstruction, it will use the
scanned mount path information to clean up the mounts.
In this PR, all the plugins still support reconstruction (except
glusterfs), so reconstruction of some plugins will still have issues.
The next PR will modify those plugins that cannot support reconstruction
well.
This PR addresses issue #52683, #54108 (This PR includes the changes to
update devicePath after local attach finishes)
If we go a certain amount of time without being able to create a client
cert and we have no current client cert from the store, exit. This
prevents a corrupted local copy of the cert from leaving the Kubelet in a
zombie state forever. Exiting allows a config loop outside the Kubelet
to clean up the file or the bootstrap client cert to get another client
cert.
Automatic merge from submit-queue (batch tested with PRs 59097, 57076, 59295). 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 windows config to Kubelet CRI
**What this PR does / why we need it**:
Currently Container Runtime Interface (CRI) only supports LinuxContainerConfig and therefore LinuxContainerResources in ContainerConfig. Windows resource config is different from Linux's, although it shares some common properties.
This PR adds windows config to CRI. Add newly added WindowsContainerResources is original from OCI spec (see https://github.com/opencontainers/runtime-spec/blob/master/specs-go/config.go#L437).
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
First part of #56734. A further PR is needed to fill the values after we have agreement on the spec.
**Special notes for your reviewer**:
**Release note**:
```release-note
Add windows config to Kubelet CRI
```
/assign @yujuhong @brendandburns
/cc @taylorb-microsoft @JiangtianLi @dchen1107
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>.
Ensure that the runtime mounts RO volumes read-only
**What this PR does / why we need it**:
This change makes it so that containers cannot write to secret, configMap, downwardAPI and projected volumes since the runtime will now mount them read-only. This change makes things less confusing for a user since any attempt to update a secret volume will result in an error rather than a successful change followed by a revert by the kubelet when the volume next syncs.
It also adds a feature gate `ReadOnlyAPIDataVolumes` to a provide a way to disable the new behavior in 1.10, but for 1.11, the new behavior will become non-optional.
Also, E2E tests for downwardAPI and projected volumes are updated to mount the volumes somewhere other than /etc.
**Which issue(s) this PR fixes**
Fixes#58719
**Release note**:
```release-note
Containers now mount secret, configMap, downwardAPI and projected volumes read-only. Previously,
container modifications to files in these types of volumes were temporary and reverted by the kubelet
during volume sync. Until version 1.11, setting the feature gate ReadOnlyAPIDataVolumes=false will
preserve the old behavior.
```
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>.
Postpone PV deletion with finalizer when it is being used
Postpone PV deletion if it is bound to a PVC
xref: https://github.com/kubernetes/community/pull/1608
**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#33355
**Special notes for your reviewer**:
**Release note**:
```release-note
Postpone PV deletion when it is being bound to a PVC
```
WIP, assign to myself first
/assign @NickrenREN
before this change, an api source was always registered, even when there
was no kubeclient. this lead to some operations blocking waiting for
podConfig.SeenAllSources to pass, which it never would.
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>.
Only rotate certificates in the background
Change the Kubelet to not block until the first certs have rotated (we didn't act on it anyway) and fall back to the bootstrap cert if the most recent rotated cert is expired on startup.
The certificate manager originally had a "block on startup" rotation behavior to ensure at least one rotation happened on startup. However, since rotation may not succeed within the first time window the code was changed to simply print the error rather than return it. This meant that the blocking rotation has no purpose - it cannot cause the kubelet to fail, and it *does* block the kubelet from starting static pods before the api server becomes available.
The current block behavior causes a bootstrapped kubelet that is also set to run static pods to wait several minutes before actually launching the static pods, which means self-hosted masters using static pods have a pointless delay on startup.
Since blocking rotation has no benefit and can't actually fail startup, this commit removes the blocking behavior and simplifies the code at the same time. The goroutine for rotation now completely owns the deadline, the shouldRotate() method is removed, and the method that sets rotationDeadline now returns it. We also explicitly guard against a negative sleep interval and omit the message.
Should have no impact on bootstrapping except the removal of a long delay on startup before static pods start.
The other change is that an expired certificate from the cert manager is *not* considered a valid cert, which triggers an immediate rotation. This causes the cert manager to fall back to the original bootstrap certificate until a new certificate is issued. This allows the bootstrap certificate on masters to be "higher powered" and allow the node to function prior to initial approval, which means someone configuring the masters with a pre-generated client cert can be guaranteed that the kubelet will be able to communicate to report self-hosted static pod status, even if the first client rotation hasn't happened. This makes master self-hosting more predictable for static configuration environments.
```release-note
When using client or server certificate rotation, the Kubelet will no longer wait until the initial rotation succeeds or fails before starting static pods. This makes running self-hosted masters with rotation more predictable.
```
Add a feature gate ReadOnlyAPIDataVolumes to a provide a way to
disable the new behavior in 1.10, but for 1.11, the new
behavior will become non-optional.
Also, update E2E tests for downwardAPI and projected volumes
to mount the volumes somewhere other than /etc.
Automatic merge from submit-queue (batch tested with PRs 59106, 58985, 59068, 59120, 59126). 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 cross-build breakage after #58174
**What this PR does / why we need it**:
Fix cross-build breakage after #58174
@cblecker
**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#59121
**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 PodPidsLimit and ConfigTrialDuration on internal KubeletConfig type
They should both follow the convention of not being a pointer on the internal type.
This required adding a conversion function between `int64` and `*int64`. A side effect is this removes a warning in the generated code for the apps API group.
@dims
```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>.
Add support of hyperv isolation for windows containers
**What this PR does / why we need it**:
Add support of hyperv isolation for windows containers.
**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#58750
**Special notes for your reviewer**:
Only one container per pod is supported yet.
**Release note**:
```release-note
Windows containers now support experimental Hyper-V isolation by setting annotation `experimental.windows.kubernetes.io/isolation-type=hyperv` and feature gates HyperVContainer. Only one container per pod is supported yet.
```
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>.
Fixes for HostIPC tests to work when Docker has SELinux support enabled.
**What this PR does / why we need it**:
Fixes for HostIPC tests to work when Docker has SELinux support enabled.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
N/A
**Special notes for your reviewer**:
The core of the matter is to use `ipcs` from util-linux rather than the one from busybox. The typical SELinux policy has enough to allow Docker containers (running under svirt_lxc_net_t SELinux type) to access IPC information by reading the contents of the files under /proc/sysvipc/, but not by using the shmctl etc. syscalls.
The `ipcs` implementation in busybox will use `shmctl(0, SHM_INFO, ...)` to detect whether it can read IPC info (see source code [here](https://git.busybox.net/busybox/tree/util-linux/ipcs.c?h=1_28_0#n138)), while the one in util-linux will prefer to read from the /proc files directly if they are available (see source code [here](https://github.com/karelzak/util-linux/blob/v2.27.1/sys-utils/ipcutils.c#L108)).
It turns out the SELinux policy doesn't allow the shmctl syscalls in an unprivileged container, while access to it through the /proc interface is fine. (One could argue this is a bug in the SELinux policy, but getting it fixed on stable OSs is hard, and it's not that hard for us to test it with an util-linux `ipcs`, so I propose we do so.)
This PR also contains a refactor of the code setting IpcMode, since setting it in the "common options" function is misleading, as on containers other than the sandbox, it ends up always getting overwritten, so let's only set it to "host" in the Sandbox.
It also has a minor fix for the `ipcmk` call, since support for size suffix was only introduced in recent versions of it.
**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>.
Remove setInitError.
**What this PR does / why we need it**:
Removes setInitError, it's not sure it was ever really used, and it causes the kubelet to hang and get wedged.
**Which issue(s) this PR fixes**
Fixes#46086
**Special notes for your reviewer**:
If `initializeModules()` in `kubelet.go` encounters an error, it calls `runtimeState.setInitError(...)`
47d61ef472/pkg/kubelet/kubelet.go (L1339)
The trouble with this is that `initError` is never cleared, which means that `runtimeState.runtimeErrors()` always returns this `initError`, and thus pods never start sync-ing.
In normal operation, this is expected and desired because eventually the runtime is expected to become healthy, but in this case, `initError` is never updated, and so the system just gets wedged.
47d61ef472/pkg/kubelet/kubelet.go (L1751)
We could add some retry to `initializeModules()` but that seems unnecessary, as eventually we'd want to just die anyway. Instead, just log fatal and die, a supervisor will restart us.
Note, I'm happy to add some retry here too, if that makes reviewers happier.
**Release note**:
```release-note
Prevent kubelet from getting wedged if initialization of modules returns an error.
```
@feiskyer @dchen1107 @janetkuo
@kubernetes/sig-node-bugs
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>.
Make eviction manager work with CRI container runtime.
Previously, eviction manager uses a function `HasDedicatedImageFs` in `pkg/kubelet/cadvisor` to detect whether image fs and root fs are on the same device.
However, it doesn't work with CRI container runtime which provides container/image stats through CRI. Thus all eviction tests for containerd are failing now. https://k8s-testgrid.appspot.com/sig-node-containerd#node-e2e-flaky
This PR makes it work with CRI container runtime.
@kubernetes/sig-node-pr-reviews
@yujuhong @yguo0905 @feiskyer @mrunalp @abhi @dashpole
Signed-off-by: Lantao Liu <lantaol@google.com>
**What this PR does / why we need it**:
**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
```
They should both follow the convention of not being a pointer on the
internal type. This required adding a conversion function between
`int64` and `*int64`.
A side effect is this removes a warning in the generated code for the
apps API group.
Automatic merge from submit-queue (batch tested with PRs 58899, 58980). 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>.
CRI: Add a call to reopen log file for a container
This allows a daemon external to the container runtime to rotate the log
file, and then ask the runtime to reopen the files.
**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#58823
**Release note**:
```release-note
CRI: Add a call to reopen log file for a container.
```
Automatic merge from submit-queue (batch tested with PRs 58777, 58978, 58977, 58775). 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 pod sandbox privilege.
Fixes https://github.com/kubernetes/kubernetes/issues/58979.
In cri-containerd, we start enforcing that a privileged container can't be created in privileged sandbox in https://github.com/containerd/cri-containerd/pull/577.
However, after that the e2e-gci-device-plugin-gpu test starts failing. https://k8s-testgrid.appspot.com/sig-node-containerd#e2e-gci-device-plugin-gpu
```
I0128 06:49:09.117] Jan 28 06:49:09.086: INFO: At 2018-01-28 06:41:10 +0000 UTC - event for nvidia-driver-installer-5kkrz: {kubelet bootstrap-e2e-minion-group-7s2v} Failed: (combined from similar events): Error: failed to generate container "cfb9f4f01fc2685db6469d3f6348077b94d4aa577e2e6345bf890f8871ec80dd" spec: no privileged container allowed in sandbox
```
The reason is that kubelet doesn't check init container when setting sandbox privilege.
Signed-off-by: Lantao Liu <lantaol@google.com>
**Release note**:
```release-note
none.
```
@kubernetes/sig-node-bugs @yujuhong @feiskyer @mrunalp
Automatic merge from submit-queue (batch tested with PRs 58955, 58968, 58971, 58963, 58298). 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>.
pkg: kubelet: do not assume anything about images names
This patch fixes a regression introduced by
https://github.com/kubernetes/kubernetes/pull/51751 in the CRI
interface.
That commit actually changed a unit test where we were previously *not*
assuming anything about an image name.
Before that commit, if you send the image "busybox" through the CRI,
the container runtime receives "busybox". After that patch the
container runtime gets "docker.io/library/busybox".
While that may be correct for the internal kube dockershim, in the CRI
we must not assume anything about image names. The ImageSpec is not
providing any spec around the image so the container runtime should
just get the raw image name from the pod spec. Every container runtime
can handle image names the way it wants. The "docker.io" namespace is
not at all "standard", CRI-O is not following what the docker UI say
since that's the docker UI. We should not focus the CRI on wrong UI
design, especially around a default namespace.
Image name normalization is a Docker implementation detail around short images names, not the CRI.
ImageSpec is not standardized yet:
https://github.com/kubernetes/kubernetes/issues/46255 and
https://github.com/kubernetes/kubernetes/issues/7203
This is something which should land in 1.9 as well since the regression
is from 1.8.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
**What this PR does / why we need it**:
**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
Fix regression in the CRI: do not add a default hostname on short image names
```
Automatic merge from submit-queue (batch tested with PRs 56995, 58498, 57426, 58902, 58863). 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: remove the rktshim directory
This package contains only placeholders without actual implementation.
Since it is not currently under active development, remove it to avoid
unnecessary change needed whenever the interface is changed.
Automatic merge from submit-queue (batch tested with PRs 56995, 58498, 57426, 58902, 58863). 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>.
Get windows kernel version directly from registry
**What this PR does / why we need it**:
kubernetes/kubernetes#55143 gets windows kernel version by calling windows.GetVersion(), but it doesn't work on windows 10. From https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx, GetVersion requires app to be manifested.
Applications not manifested for Windows 8.1 or Windows 10 will return the Windows 8 OS version value (6.2). I tried a toy go program using GetVersion on Windows 10 and it returns 0x23f00206.
Given the limited win32 functions in golang, we should read from registry directly.
**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#58497
**Special notes for your reviewer**:
Should also cherry-pick to v1.9.
**Release note**:
```release-note
Get windows kernel version directly from registry
```
/cc @JiangtianLi @taylorb-microsoft
Automatic merge from submit-queue (batch tested with PRs 56995, 58498, 57426, 58902, 58863). 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>.
flag precedence redo
Changes the Kubelet configuration flag precedence order so that flags take precedence over config from files/ConfigMaps.
This should fix the re-parse issue with #56097 that led to revert.
Fixes#56171.
In order to prevent global flags (registered in 3rd party libs, etc.) from leaking into the command's help text, this PR turns off Cobra's flag parsing in the `kubelet` command and re-implements help and usage funcs for the Kubelet. Cobra's default funcs automatically merge all global flags into the command's flagset, which results in incorrect help text. I tried to keep the formatting as close as possible to the what the Kubelet currently produces.
Diff between Kubelet's help text on `upstream/master` vs `mtaufen/kc-flags-precedence-redo`, which shows a leaked flag being removed, but no change to the formatting:
```
diff --git a/upstream.master.help b/mtaufen.kc-flags-precedence-redo.help
index 798a030..0797869 100644
--- a/upstream.master.help
+++ b/mtaufen.kc-flags-precedence-redo.help
@@ -30,7 +30,6 @@ Flags:
--authorization-mode string Authorization mode for Kubelet server. Valid options are AlwaysAllow or Webhook. Webhook mode uses the SubjectAccessReview API to determine authorization. (default "AlwaysAllow")
--authorization-webhook-cache-authorized-ttl duration The duration to cache 'authorized' responses from the webhook authorizer. (default 5m0s)
--authorization-webhook-cache-unauthorized-ttl duration The duration to cache 'unauthorized' responses from the webhook authorizer. (default 30s)
- --azure-container-registry-config string Path to the file containing Azure container registry configuration information.
--bootstrap-checkpoint-path string <Warning: Alpha feature> Path to to the directory where the checkpoints are stored
--bootstrap-kubeconfig string Path to a kubeconfig file that will be used to get client certificate for kubelet. If the file specified by --kubeconfig does not exist, the bootstrap kubeconfig is used to request a client certificate from the API server. On success, a kubeconfig file referencing the generated client certificate and key is written to the path specified by --kubeconfig. The client certificate and key file will be stored in the directory pointed by --cert-dir.
--cadvisor-port int32 The port of the localhost cAdvisor endpoint (set to 0 to disable) (default 4194)
```
Ultimately, I think we should implement a common lib that K8s components can use to generate clean help text, as the global flag leakage problem affects all core k8s binaries. I would like to do so in a future PR, to keep this PR simple. We could base the help text format on the default values returned from `Command.HelpTemplate` and `Command.UsageTemplate`. Unfortunately, the template funcs used to process these defaults are private to Cobra, so we'd have to re-implement these, or avoid using them.
```release-note
NONE
```
- we now provide clear message to user what to do when cloudprovider resizing is finished
and file system resizing is needed.
- add a event when resizing is successful.
- Use Patch for updating PVCs in both kubelet and controller-manager
- Extract updating pvc util function in one place.
- Only update resize conditions on progress
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>.
clean up unused const
**What this PR does / why we need it**:
**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
```
This patch fixes a regression introduced by
https://github.com/kubernetes/kubernetes/pull/51751 in the CRI
interface.
That commit actually changed a unit test where we were previously *not*
assuming anything about an image name.
Before that commit, if you send the image "busybox" through the CRI,
the container runtime receives "busybox". After that patch the
container runtime gets "docker.io/library/busybox".
While that may be correct for the internal kube dockershim, in the CRI
we must not assume anything about image names. The ImageSpec is not
providing any spec around the image so the container runtime should
just get the raw image name from the pod spec. Every container runtime
can handle image names the way it wants. The "docker.io" namespace is
not at all "standard", CRI-O is not following what the docker UI say
since that's the docker UI. We should not focus the CRI on wrong UI
design, especially around a default namespace.
ImageSpec is not standardized yet:
https://github.com/kubernetes/kubernetes/issues/46255 and
https://github.com/kubernetes/kubernetes/issues/7203
This is something which should land in 1.9 as well since the regression
is from 1.8.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This changes the Kubelet configuration flag precedence order so that
flags take precedence over config from files/ConfigMaps.
See #56171 for rationale.
Note: Feature gates accumulate with the following
precedence (greater number overrides lesser number):
1. file-based config
2. dynamic cofig
3. flag-based config
The certificate manager originally had a "block on startup" rotation
behavior to ensure at least one rotation happened on startup. However,
since rotation may not succeed within the first time window the code was
changed to simply print the error rather than return it. This meant that
the blocking rotation has no purpose - it cannot cause the kubelet to
fail, and it *does* block the kubelet from starting static pods before
the api server becomes available.
The current block behavior causes a bootstrapped kubelet that is also
set to run static pods to wait several minutes before actually launching
the static pods, which means self-hosted masters using static pods have
a pointless delay on startup.
Since blocking rotation has no benefit and can't actually fail startup,
this commit removes the blocking behavior and simplifies the code at the
same time. The goroutine for rotation now completely owns the deadline,
the shouldRotate() method is removed, and the method that sets
rotationDeadline now returns it. We also explicitly guard against a
negative sleep interval and omit the message.
Should have no impact on bootstrapping except the removal of a long
delay on startup before static pods start.
Also add a guard condition where if the current cert in the store is
expired, we fall back to the bootstrap cert initially (we use the
bootstrap cert to communicate with the server). This is consistent with
when we don't have a cert yet.
This package contains only placeholders without actual implementation.
Since it is not currently under active development, remove it to avoid
unnecessary change needed whenever the interface is changed.
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>.
fixing array out of bound by checking initContainers instead of containers
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** : Fixes#58541
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 57973, 57990). 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>.
Set pids limit at pod level
**What this PR does / why we need it**:
Add a new Alpha Feature to set a maximum number of pids per Pod.
This is to allow the use case where cluster administrators wish
to limit the pids consumed per pod (example when running a CI system).
By default, we do not set any maximum limit, If an administrator wants
to enable this, they should enable `SupportPodPidsLimit=true` in the
`--feature-gates=` parameter to kubelet and specify the limit using the
`--pod-max-pids` parameter.
The limit set is the total count of all processes running in all
containers in the pod.
**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#43783
**Special notes for your reviewer**:
**Release note**:
```release-note
New alpha feature to limit the number of processes running in a pod. Cluster administrators will be able to place limits by using the new kubelet command line parameter --pod-max-pids. Note that since this is a alpha feature they will need to enable the "SupportPodPidsLimit" feature.
```
Having the field set in modifyCommonNamespaceOptions is misleading,
since for the actual container it is later unconditionally overwritten
to point to the sandbox container.
So let's move its setting to modifyHostOptionsForSandbox (renamed from
modifyHostNetworkOptionForSandbox as it's not about network only), since
that reflects what actually happens in practice.
This commit is purely a refactor, it doesn't change any behavior.
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>.
Rename package deviceplugin => devicemanager.
**What this PR does / why we need it**:
Fixes#58795
/kind cleanup
Rename package `deviceplugin` to `devicemanager` for consistency.
We already have components named Container manager and CPU manager. The device plugin package similarly contains an interface called `Manager`. The fact that the manager has plugins is somewhat incidental to the purpose of the package itself.
Note that this rename only affects internal API. The external gRPC interface still exports a package called deviceplugin.
**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>.
kubelet/get-pod-from-path: unused param should be removed
**What this PR does / why we need it**:
I'm sorry that i have not notice this PR has been closed because of the error of test. And, i found it can't reopen again, so i open the other one, thank you!
https://github.com/kubernetes/kubernetes/pull/38184
I am so sorry for trouble with you, PTAL, thank you!
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>.
testcase to pkg/kubelet/cadvisor/util.go
**What this PR does / why we need it**:
testcase to pkg/kubelet/cadvisor/util.go
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>.
Add a container type to the runtime manager's container status
**What this PR does / why we need it**:
This is Step 1 of the "Debug Containers" feature proposed in #35584 and is hidden behind a feature gate. Debug containers exist as container status with no associated spec, so this new runtime label allows the kubelet to treat containers differently without relying on spec.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: cc #27140
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
**Integrating feedback**:
- [x] Remove Type field in favor of a help method
**Dependencies:**
- [x] #46261 Feature gate for Debug Containers
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>.
Add deprecation warnings for rktnetes flags
**What this PR does / why we need it**:
**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#53601
**Special notes for your reviewer**:
**Release note**:
```release-note
rktnetes has been deprecated in favor of rktlet. Please see https://github.com/kubernetes-incubator/rktlet for more information.
```
This is part of the "Debug Containers" feature and is hidden behind
a feature gate. Debug containers have no stored spec, so this new
runtime label allows the kubelet to treat containers differently
without relying on spec.
Automatic merge from submit-queue (batch tested with PRs 58547, 57228, 58528, 58499, 58618). 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 TLS min version flag
Adds a flag for controlling the minimum TLS level allowed.
/assign liggitt
@kubernetes/sig-node-pr-reviews @k8s-mirror-api-machinery-pr-reviews
```release-note
--tls-min-version on kubelet and kube-apiserver allow for configuring minimum TLS versions
```
We let dockershim implement the kubelet's internal (CRI) API as an
intermediary step before transitioning fully to communicate using gRPC.
Now that kubelet has been communicating to the runtime over gRPC for
multiple releases, we can safely retire the extra interface in
dockershim.
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typo of errUnsuportedVersion
**What this PR does / why we need it**:
typo of errUnsuportedVersion in pkg/kubelet/cm/deviceplugin/types.go
**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
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kubelet: imagegc: exempt sandbox image
The image GC logic currently does not consider the sandbox image to be in-use by pods, since it isn't explicitly listed in the pod spec. However, it is trivially in-use if there are any pods running on the node.
This change adds logic to exempt the sandbox image from GC by always considering it as in-use.
**Reviewer Note**
I am changing `(m *kubeGenericRuntimeManager) GetImageRef` to return the ID always rather than the first tag if it exists. Seemed ok to me. Makes some error messages a little less readable in that the ID will be printed and not the tag. Just wanted to see what reviewers think about this.
@derekwaynecarr @dashpole
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Remove unused code in UT files in pkg/
**What this PR does / why we need it**:
Remove unused code in UT files in pkg/ .
**Release note**:
```release-note
NONE
```
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Support for custom tls cipher suites in api server and kubelet
**What this PR does / why we need it**:
This pull request aims to solve the problem of users not able to set custom cipher suites in the api server.
Several users have requested this given that some default ciphers are vulnerable.
There is a discussion in #41038 of how to implement this. The options are:
- Setting a fixed list of ciphers, but users will have different requirements so a fixed list would be problematic.
- Letting the user set them by parameter, this requires adding a new parameter that could be pretty long with the list of all the ciphers.
I implemented the second option, if the ciphers are not passed by parameter, the Go default ones will be used (same behavior as now).
**Which issue this PR fixes**
fixes#41038
**Special notes for your reviewer**:
The ciphers in Go tls config are constants and the ones passed by parameters are a comma-separated list. I needed to create the `type CipherSuitesFlag` to support that conversion/mapping, because i couldn't find any way to do this type of reflection in Go.
If you think there is another way to implement this, let me know.
If you want to test it out, this is a ciphers combination i tested without the weak ones:
```
TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
```
If this is merged i will implement the same for the Kubelet.
**Release note**:
```release-note
kube-apiserver and kubelet now support customizing TLS ciphers via a `--tls-cipher-suites` flag
```
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Fix device plugin endpoint UT
**What this PR does / why we need it**:
Fix some issues in device plugin endpoint UT.
**Which issue(s) this PR fixes**:
Fixes#55920
**Special notes for your reviewer**:
@jiayingz @RenaudWasTaken @lichuqiang PTAL.
/sig node
**Release note**:
```release-note
None
```
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Handle Unhealthy devices
Update node capacity with sum of both healthy and unhealthy devices.
Node allocatable reflect only healthy devices.
**What this PR does / why we need it**:
Currently node capacity only reflects healthy devices. Unhealthy devices are ignored totally while updating node status. This PR handles unhealthy devices while updating node status.
**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#57241
**Special notes for your reviewer**:
**Release note**:
<!-- Write your release note:
Handle Unhealthy devices
```release-note
Handle Unhealthy devices
```
/cc @tengqm @ConnorDoyle @jiayingz @vishh @jeremyeder @sjenning @resouer @ScorpioCPH @lichuqiang @RenaudWasTaken @balajismaniam
/sig node
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Enable on-demand collection of node metrics
**What this PR does / why we need it**:
This PR enables collecting node-level metrics on-demand. This is useful because it allows the kubelet to respond to resource pressure more quickly.
**Which issue(s) this PR fixes**:
Ref: #51745
**Release note**:
```release-note
NONE
```
/sig node
/priority important-soon
/kind bug
/assign @vishh @derekwaynecarr
cc @tallclair
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fixed the some typo in eviction_manager
**What this PR does / why we need it**:
fixed some wrong typo in `eviction_manager.go`
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Add stub device plugin for conformance e2e test
**What this PR does / why we need it**:
Add stub device plugin for conformance e2e test
- extend [device_plugin_stub](https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/cm/deviceplugin/device_plugin_stub.go) to support e2e test
- add test suite with this device-plugin-stub
- simulate more use cases by deploying some pods to request these resources
**Which issue this PR fixes**:
fixes#52861
**Special notes for your reviewer**:
@vishh @jiayingz PTAL.
**Release note**:
```release-note
None
```
Add a new Alpha Feature to set a maximum number of pids per Pod.
This is to allow the use case where cluster administrators wish
to limit the pids consumed per pod (example when running a CI system).
By default, we do not set any maximum limit, If an administrator wants
to enable this, they should enable `SupportPodPidsLimit=true` in the
`--feature-gates=` parameter to kubelet and specify the limit using the
`--pod-max-pids` parameter.
The limit set is the total count of all processes running in all
containers in the pod.
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Fix TestCadvisorListPodStats failure under mac/darwin
**What this PR does / why we need it**:
GetPodCgroupNameSuffix is not really implemented under darwin
(or windows for that matter). So let's just skip over the check
for CPU and Memory if that is not set.
**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#57636
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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ignore images in used by running containers when GC
**What this PR does / why we need it**:
Let kubelet not attempt to remove images being used by running containers.
**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#57006
**Special notes for your reviewer**:
@kubernetes/sig-node-pr-reviews
**Release note**:
```release-note
ignore images in used by running containers when GC
```
The `--docker-disable-shared-pid` flag will be removed once per-pod
configurable process namespace sharing becomes available. Mark it
deprecated to notify cluster admins.
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[eviction manager]fix type error
**What this PR does / why we need it**:
It should not wrong hint messages when create memory threshold notifier failed
**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
```
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dockershim: bump the minimum supported docker version to 1.11
Drop the 1.10 compatibilty code.
**Release note**:
```release-note
NONE
```
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remove duplicate function getBuggyHostportChain
**What this PR does / why we need it**:
remove `TODO remove this after release 1.9, please refer https://github.com/kubernetes/kubernetes/pull/55153`
function `getBuggyHostportChain` does bad conversion on HostPort from int32 to string, now that `getHostportChain` does right, we remove function `getBuggyHostportChain` .
**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
```
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Fix the wrong code comment
**What this PR does / why we need it**:
Fix the wrong code comment
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#55608
**Release note**:
```release-note
NONE
```
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Move scheduler out of plugin directory
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
This is but one step toward resolving the referenced issue.
/ref #57579
**Special notes for your reviewer**:
**Release note**:
```release-note
Default scheduler code is moved out of the plugin directory.
plugin/pkg/scheduler -> pkg/scheduler
plugin/cmd/kube-scheduler -> cmd/kube-scheduler
```
/sig scheduling
This moves plugin/pkg/scheduler to pkg/scheduler and
plugin/cmd/kube-scheduler to cmd/kube-scheduler.
Bulk of the work was done with gomvpkg, except for kube-scheduler main
package.
Credential provider is useful without the v1 API, move the only
dependency out so that we can more easily move credential provider to a
utility library in the future (other callers besides Kubelet may need to
load pull secrets like Docker).
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Bump pause container used by kubelet and tests to 3.1
This updates the version of the pause container used by the kubelet and
various test utilities to 3.1.
**What this PR does / why we need it**: The pause container hasn't been rebuilt in quite a while and needs an update to reap zombies (#50865) and for schema2 manifest (#56253).
**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#50865, Fixes#56253
**Special notes for your reviewer**:
**Release note**:
```release-note
The kubelet uses a new release 3.1 of the pause container with the Docker runtime. This version will clean up orphaned zombie processes that it inherits.
```
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Make ConfigOK status messages more human readable
This makes the ConfigOK status messages for dynamic config more human readable by including the path (e.g. SelfLink) to the object. The messages used to include the UID, but this was kind of useless, because there's no way to GET an object by UID.
```release-note
NONE
```
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periodically check whether assigned kubelet config should become last-known-good
Fixes#57808
Previously, the last-known-good was only updated on Kubelet restart. This has been on my todo list for a while, good to finally have a PR up.
Previously we could have this scenario, which is fixed by this PR:
- lkg is set to local
- we set config A
- config A passes trial period, but nothing caused Kubelet to restart
- we set config B, which turns out to be invalid
- Kubelet will fall back to local, because lkg was never updated
```release-note
NONE
```
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Update gengo version to include goimports formatter
Update gengo which now uses goimports to format code and organize imports.
Fixes#55542
**Special notes for your reviewer**:
Updates version of k8s.io/gengo
Takes new dependency on golang.org/x/tools/imports and golang.org/x/tools/go/ast/astutil
**Release Notes**:
```release-note
NONE
```
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More default fixups for Kubelet flags
Similar to #57621, this fixes some other Kubelet flags that were
defaulted wrong.
```release-note
NONE
```
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security_context_test.go(TestVerifyRunAsNonRoot): add more test cases
**What this PR does / why we need it**:
In #56503 we modified `VerifyRunAsNonRoot` function add add one more argument. As [was requested](https://github.com/kubernetes/kubernetes/pull/56503#discussion_r153870821) by @simo5, this change should have a unit test.
This PR adds this test and also some more to cover more execution paths.
**Release note**:
```release-note
NONE
```
PTAL @pweil- @liggitt
CC @simo5
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Replace --init-config-dir with --config
Rather than a directory with magic names, just give the Kubelet a file path.
Was originally in #55718, but I'm splitting it out for clarity.
Fixes#57763
```release-note
The alpha `--init-config-dir` flag has been removed. Instead, use the `--config` flag to reference a kubelet configuration file directly.
```
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Change to pkg/util/node.UpdateNodeStatus
**What this PR does / why we need it**:
> // TODO: Change to pkg/util/node.UpdateNodeStatus.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
/cc @brendandburns @dchen1107 @lavalamp
**Release note**:
```release-note
None
```
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new testcase to cgroup_manager_linux.go
a new test case to adaptName(), for testing "cgroupManagerType != libcontainerSystemd"
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Remove redundant sleep from ReRegistration unit test case
/kind cleanup
/sig node
**What this PR does / why we need it**:
Once upon a time, there was a race in the device plugin registration logic. At that time, [list()](5cac9fc984/pkg/kubelet/deviceplugin/manager.go (L206)) and [listAndWatch()](5cac9fc984/pkg/kubelet/deviceplugin/manager.go (L224)) used to be separate functions. Race was there for taking manager.mutex lock from two places. [One, from within the m.addEndpoint()](5cac9fc984/pkg/kubelet/deviceplugin/manager.go (L214)) and the [second, from within m.Devices()](5cac9fc984/pkg/kubelet/deviceplugin/manager.go (L137)). This race was making `TestDevicePluginReRegistration` flaky as explained below.
```
1. p1.Register(socketName, testResourceName)
2. // Wait for the first callback to be issued.
3. <-callbackChan
4. devices := m.Devices()
```
* L#1 leads to eventually **asynchronous** invocation of m.addEndpoint(), let say **thread1**.
* L#3 holds the test case execution till the [callback gets invoked](5cac9fc984/pkg/kubelet/deviceplugin/endpoint.go (L108)). This means test case execution waits on channel till the **thread1** reaches the point where [e.list() call completes in the addEndpoint.](5cac9fc984/pkg/kubelet/deviceplugin/manager.go (L206))
* L#4 triggers a new thread. thread1 and this new thread are both racing for m.mutex.Lock(). Former, in the addEndpoint() and later one in the m.Devices(). If m.Devices wins the race, result is the test case failure because endpoint gets added in the manager only after taking mutex.Lock() in the addEndpoint().
To deal with this flake, we added `Sleep` between L#3 and L#4. `Sleep` was getting some extra time to addEndpoint() and thus making thread1 win the race each time.
Above explained race scenario got fixed and merged sometime back in this PR:
[Deviceplugin refactoring: merge func list and listwatch in endpoint into one](https://github.com/kubernetes/kubernetes/pull/52149)
With the above PR, callback function is invoked from e.run() which makes sure that test case waits on channel till the endpoint is added and devices are updated
Above explained race scenario does not exist now, therefore removing redundant sleeps from the test case.
Tested:
go test -race -count 500 k8s.io/kubernetes/pkg/kubelet/cm/deviceplugin -run TestDevicePluginReRegistration -timeout 5h
Related #52616#56026
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
/cc @vishh @derekwaynecarr @jiayingz @RenaudWasTaken @lichuqiang @ScorpioCPH @tengqm @mindprince @ConnorDoyle @jeremyeder
GetPodCgroupNameSuffix is not really implemented under darwin
(or windows for that matter). So let's just skip over the check
for CPU and Memory if that is not set.
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Fix incorrect hairpin-mode value and validate it
**What this PR does / why we need it**:
* Fix incorrect hairpin-mode value
* Add validation
**Which issue(s) this PR fixes**:
Fixes#57609
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Add vikaschoudhary16 as reviewer in pkg/kubelet/cm/deviceplugin
**What this PR does / why we need it**:
Add github user vikaschoudhary16 (me) to the reviewers list for pkg/kubelet/cm/deviceplugin
**Special notes for your reviewer**:
I would like to help with the review load in this package.
```release-note
None
```
/sig node
/cc @vishh @jiayingz @derekwaynecarr @mindprince @RenaudWasTaken @ConnorDoyle
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Revert back #57278
**What this PR does / why we need it**:
This PR reverts back to behavior of scanning Limits.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Related #
#57276#57170
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
/sig node
/cc @vishh @ConnorDoyle @jiayingz
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Fix a race in the endpoint.go
**What this PR does / why we need it**:
This PR fixes a race in the endpoint.go
Fixes#56026
-->
```release-note
None
```
/sig node
/cc @RenaudWasTaken @ConnorDoyle @jiayingz @mindprince @ScorpioCPH @resouer @tengqm @vishh
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Send an event just before the Kubelet restarts to use a new config
**What this PR does / why we need it**:
This PR makes the Kubelet send events for configuration changes. This makes it much easier to see a recent history of configuration changes for the 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#56895
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/cc @dchen1107 @liggitt @dashpole
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Improved mount/attach error logging and added attach event.
Fixed kubelet error message to be more descriptive. Added Attach success event for help in debugging.
The attach event is helpful when the node may not have the correct information about attachment status, it allows the user to see whether the Attach was run at all. If there is no success/failure attach message we can infer that there was no attach started at all.
Fixes#57217
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remove useless function hasHostPortConflicts
`hasHostPortConflicts` is not used anywhere. Delete it.
**Release note**:
```release-note
NONE
```
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Use k8s.gcr.io vanity domain for container images
Related issue: https://github.com/kubernetes/release/issues/281
```release-note
Use "k8s.gcr.io" for container images rather than "gcr.io/google_containers". This is just a redirect, for now, so should not impact anyone materially.
Documentation and tools should all convert to the new name. Users should take note of this in case they see this new name in the system.
```
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cpumanager: Propagate error up instead panic
**What this PR does / why we need it**:
**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#57239
**Special notes for your reviewer**:
/assign @sjenning
**Release note**:
```release-note
None
```
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Fix device manager to scan resources.Requests
**What this PR does / why we need it**:
This PR makes device manager to scan resources.Requests from the container spec. Currently
it scans resources.Limits. For extended resources, it is not mandatory for resources.Limits to be present in the container spec and if Limits are present, validation logic ensures that Limits will always be equal to Requests.
Fixes#57276
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
/sig node
/cc @ConnorDoyle @vishh @jiayingz @RenaudWasTaken @tengqm @resouer @mindprince
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Remove hacks added for mesos
**What this PR does / why we need it**:
Since Mesos is no longer in your main repository and since we have
things like dynamic kubelet configuration in progress, we should
drop these undocumented, untested, private hooks.
cmd/kubelet/app/server.go::CreateAPIServerClientConfig
CreateAPIServerClientConfig::getRuntime
pkg/kubelet/kubelet_pods.go::getPhase
Also remove stuff from Dependencies struct that were specific to
the Mesos integration (ContainerRuntimeOptions and Options)
Also remove stale references in test/e2e and and test owners file
**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
Drop hacks used for Mesos integration that was already removed from main kubernetes repository
```
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check and set promiscuous mode with netlink because netlink already supports it
**What this PR does / why we need it**:
check and set promiscuous mode with netlink because netlink already supports it.
**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**:
I wanted to add tests for the changes, however I found upstream CI does not allow UT acquire root privilege :(
**Release note**:
```release-note
NONE
```
/sig network
Automatic merge from submit-queue (batch tested with PRs 56386, 57204, 55692, 57107, 57177). 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>.
Refactor TestPodContainerDeviceAllocation for extensiblity/readability
**What this PR does / why we need it**:
This PR refactors and reorganizes TestPodContainerDeviceAllocation(). This PR changes the logic to use array for iterating over test conditions and other refactoring such as moving test pod creation logic to a separate function.
**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
```
cc @sjenning @jeremyeder @RenaudWasTaken @vishh @mindprince @jiayingz @ScorpioCPH
/sig node
Automatic merge from submit-queue (batch tested with PRs 57148, 57123, 57091, 57141, 57131). 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 magic string for runtime type
**What this PR does / why we need it**:
This PR correct the magic string about container runtime to the constants.
**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**:
This PR correct the magic string about container runtime to the constants.
**Release note**:
```release-note
None
```
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enable flexvolume on Windows node
**What this PR does / why we need it**:
enable flexvolume on Windows node:
current PodVolumeDir is like
`\var\lib\kubelet\pods\f54c5a74-da63-11e7-b71a-000d3a02c330\volumes\test~hostpath.cmd\flextest`
which is a unix path, with this PR, PodVolumeDir in **windows** kubelet will be converted into like
`c:\var\lib\kubelet\pods\f54c5a74-da63-11e7-b71a-000d3a02c330\volumes\test~hostpath.cmd\flextest`
**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#56875
**Special notes for your reviewer**:
Detailed steps about how to use flexvolume on Windows with this PR:
https://github.com/andyzhangx/Demo/tree/master/windows/flexvolume
**Release note**:
```
enable flexvolume on Windows node
```
/sig windows
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fix deviceplugin test file create leak file problem
When execute make test, this test file will create a file named "kubelet_internal_checkpoint" in k8s directory and not delete it.
This patch fix this error
**What this PR does / why we need it**:
**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#56365
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 56410, 56707, 56661, 54998, 56722). 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>.
Move some kubelet constants to a common place
**What this PR does / why we need it**:
More context, see: https://github.com/kubernetes/kubernetes/issues/56516
**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#56516
[thanks @ixdy for verifying this!]
**Special notes for your reviewer**:
@ixdy how can I verify #56516 against this locally?
/cc @ixdy @mtaufen
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 56337, 56546, 56550, 56633, 56635). 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>.
Remove redundant code in container manager.
- Reuse stub implementations from unsupported implementations.
- Delete test file that didn't contain any tests.
**Release note**:
```release-note
NONE
```
/kind cleanup
/sig node
Automatic merge from submit-queue (batch tested with PRs 56579, 55236, 56512, 56549, 56538). 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>.
security_context_test.go(TestVerifyRunAsNonRoot): remove unused variables
**What this PR does / why we need it**:
This PR removed unused member and related variables from the test.
**Special notes for your reviewer**:
It's better to review this PR in the mode that ignore whitespace-related changes: https://github.com/kubernetes/kubernetes/pull/56579/files?w=1
**Release note**:
```release-note
NONE
```
CC @simo5
Automatic merge from submit-queue (batch tested with PRs 56401, 56506, 56551, 56298, 56581). 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>.
Addressing Comments from Code Review
**What this PR does / why we need it**: addressing comments from code review: https://github.com/kubernetes/kubernetes/pull/55824#pullrequestreview-78597250
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*: N/A
**Special notes for your reviewer**:
@thockin @jsafrane @msau42 PTAL
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 56401, 56506, 56551, 56298, 56581). 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: include runtime error in event on CreatePodSandbox failure
Include the error from the runtime in the event message when CreatePodSandbox fails. The sandbox creation can fail for many reasons and including the error makes the situation easier to debug.
The event for failed PodSandboxStatus includes this information so there is already precedent for doing this.
xref https://bugzilla.redhat.com/show_bug.cgi?id=1506813
@eparis @derekwaynecarr @dchen1107 @vishh
/release-note-none
/sig node
Automatic merge from submit-queue (batch tested with PRs 57172, 55382, 56147, 56146, 56158). 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>.
delete useless params containerized
Signed-off-by: zhangjie <zhangjie0619@yeah.net>
**What this PR does / why we need it**:
**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
delete useless params containerized
```
Automatic merge from submit-queue (batch tested with PRs 57172, 55382, 56147, 56146, 56158). 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 file store utility for device plugin checkpointing
Partially address issue #54088
cc @sjenning @jeremyeder @jiayingz @vishh
/sig node
Automatic merge from submit-queue (batch tested with PRs 54410, 56184, 56199, 56191, 56231). 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>.
CPU Manager panics on state initialization error.
**What this PR does / why we need it**:
- CPU Manager panics on state initialization error.
- Update unit tests accordingly.
- Minor related cleanup in `state_file.go`.
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/kind bug
/sig node
/priority important-soon
Blocks #52031
/assign @balajismaniam
cc @flyingcougar
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Cpu manager reconcile loop - restore state
**What this PR does / why we need it**:
Cpu manager reconcile loop can add orphaned containers to `State` calling `policy.AddContainer()`
Previous PR: #54409
e2e tests PR: #53378
Blocked by #56191
Automatic merge from submit-queue (batch tested with PRs 52259, 53951, 54385, 54805, 55145). 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 a typo in NewManager function
**What this PR does / why we need it**:
Fix a typo in NewManager function
**Special notes for your reviewer**:
**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>.
Add ConnorDoyle as approver in /pkg/kubelet/cm.
**What this PR does / why we need it**:
- Add github user `ConnorDoyle` (me) to the approvers list for `pkg/kubelet/cm`.
**Special notes for your reviewer**:
I would like to help with the review load in this package. I believe I have demonstrated good stewardship of sub-packages in this part of the code base.
```release-note
NONE
```
/sig node
/kind cleanup
/assign @derekwaynecarr
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kubelet should use the value of the cri container runtime endpoint fr…
…om cadvisor
**What this PR does / why we need it**:
To make cri container runtime endpoint consistent, kubelet (currently using "/var/run/crio.sock" ) should use value of CrioSocket exactly as defined in cadvisor.
**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#57005
**Special notes for your reviewer**:
**Release note**:
```release-note
Use the same value for cri container runtime endpoint as defined in cadivsor/crio
```
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