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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
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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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