Automatic merge from submit-queue (batch tested with PRs 65187, 65206, 65223, 64752, 65238). 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 watches necessary secrets/configmaps instead of periodic polling
Automatic merge from submit-queue (batch tested with PRs 64009, 64780, 64354, 64727, 63650). 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>.
per-field dynamic config advice
Dynamic Kubelet config gives cluster admins and k8s-as-a-service providers a lot of flexibility around reconfiguring the Kubelet in live environments. With great power comes great responsibility. These comments intend to provide more nuanced guidance around using dynamic Kubelet config by adding items to consider when changing various fields and pointing out where cluster admins and k8s-as-service providers should maintain extra caution.
@kubernetes/sig-node-pr-reviews PLEASE provide feedback and help fill in the blanks here, I don't have domain expertise in all of these features.
https://github.com/kubernetes/features/issues/281
```release-note
NONE
```
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Validate cgroups-per-qos for Windows
**What this PR does / why we need it**:
cgroups-per-qos and enforce-node-allocatable is not supported on Windows, but kubelet allows it on Windows. And then Pods may stuck in terminating state because of it. Refer #61716.
This PR adds validation for them and make kubelet refusing to start in this case.
**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#61716
**Special notes for your reviewer**:
**Release note**:
```release-note
Fail fast if cgroups-per-qos is set on Windows
```
This fixes an issue with KubeletConfiguration validation, where the
feature gates set by the new config were not taken into account.
Also fixes a validation issue with dynamic Kubelet config, where flag
precedence was not enforced prior to dynamic config validation in the
controller; this prevented rejection of dynamic configs that don't merge
well with values set via legacy flags.
Automatic merge from submit-queue (batch tested with PRs 63314, 63884, 63799, 63521, 62242). 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>.
Check CIDR before updating node status
**What this PR does / why we need it**:
Check CIDR before updating node status. See #62164.
**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#62164
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 63603, 63557, 62015). 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: update documents for container logpath
**What this PR does / why we need it**:
The container log path has been changed from `containername_attempt#.log` to `containername/attempt#.log` in #59906. This PR updates CRI documents for 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
CRI: update documents for container logpath. The container log path has been changed from containername_attempt#.log to containername/attempt#.log
```
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>.
Report node DNS info with --node-ip
**What this PR does / why we need it**:
This PR adds `ExternalDNS`, `InternalDNS`, and `ExternalIP` info for kubelets with the `--nodeip` flag enabled.
**Which issue(s) this PR fixes**
Fixes#63158
**Special notes for your reviewer**:
I added a field to the Kubelet to make IP validation more testable (`validateNodeIP` relies on the `net` package and the IP address of the host that is executing the test.) I also converted the test to use a table so new cases could be added more easily.
**Release Notes**
```release-note
Report node DNS info with --node-ip flag
```
@andrewsykim
@nckturner
/sig node
/sig network
This makes the Kubelet config key in the ConfigMap an explicit part of
the API, so we can stop using magic key names.
As part of this change, we are retiring ConfigMapRef for ConfigMap.
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>.
Change seccomp annotation from "docker/default" to "runtime/default"
**What this PR does / why we need it**:
This PR changes seccomp annotation from "docker/default" to "runtime/default", so that it is can be applied to all kinds of container runtimes. This PR is a followup of [#1963](https://github.com/kubernetes/community/pull/1963).
**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#39845
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
The API conventions specify that json keys should start with a lowercase
character, and if the key starts with an initialism, all characters in
the initialism should be lowercase. See `tlsCipherSuites` as an example.
API Conventions:
https://github.com/kubernetes/community/blob/master/contributors/devel/api-conventions.md
>All letters in the acronym should have the same case, using the
>appropriate case for the situation. For example, at the beginning
>of a field name, the acronym should be all lowercase, such as "httpGet".
Automatic merge from submit-queue (batch tested with PRs 61962, 58972, 62509, 62606). 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: move QOSReserved from experimental to alpha feature gate
Fixes https://github.com/kubernetes/kubernetes/issues/61665
**Release note**:
```release-note
The --experimental-qos-reserve kubelet flags is replaced by the alpha level --qos-reserved flag or QOSReserved field in the kubeletconfig and requires the QOSReserved feature gate to be enabled.
```
/sig node
/assign @derekwaynecarr
/cc @mtaufen
right now if the RotateKubeletServerCertificate feature is enabled,
kubelet will bootstrap server tls. this is undesirable if the deployment
is not or cannot run an approver to handle these certificate signing
requests.
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CRI: define the mount behavior when host path does not exist
**What this PR does / why we need it**:
This PR defines the mounting behavior when host path does not exist in CRI. Specifically,
- If the hostPath doesn't exist (e.g. hostPath volume), runtimes should report errors
- If the specified hostPath is a symlink, runtimes should follow the symlink and mount the real destination to the container
**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#52318
**Special notes for your reviewer**:
**Release note**:
```release-note
CRI: define the mount behavior when host path does not exist: runtime should report error if the host path doesn't exist
```
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: setup WindowsContainerResources for windows containers
**What this PR does / why we need it**:
This PR setups WindowsContainerResources for windows containers. It implements proposal here: https://github.com/kubernetes/community/pull/1510.
**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#56734
**Special notes for your reviewer**:
**Release note**:
```release-note
WindowsContainerResources is set now for windows containers
```
Automatic merge from submit-queue (batch tested with PRs 59159, 60318, 60079, 59371, 57415). 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>.
Made a couple API changes to deviceplugin/v1beta1 to avoid future
incompatible API changes:
- Add GetDevicePluginOptions rpc call. This is needed when we switch
from Registration service to probe-based plugin watcher.
- Change AllocateRequest and AllocateResponse to allow device requests
from multiple containers in a pod. Currently only made mechanical
change on the devicemanager and test code to cope with the API but
still issues an Allocate call per container. We can modify the
devicemanager in 1.11 to issue a single Allocate call per pod.
The change will also facilitate incremental API change to communicate
pod level information through Allocate rpc if there is such future
need.
**What this PR does / why we need it**:
Made a couple API changes to deviceplugin/v1beta1 to avoid future incompatible API changes.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes https://github.com/kubernetes/kubernetes/issues/59370
**Special notes for your reviewer**:
**Release note**:
```release-note
```
incompatible changes:
- Add GetDevicePluginOptions rpc call. This is needed when we switch
from Registration service to probe-based plugin watcher.
- Change AllocateRequest and AllocateResponse to allow device requests
from multiple containers in a pod. Currently only made mechanical
change on the devicemanager and test code to cope with the API but
still issues an Allocate call per container. We can modify the
devicemanager in 1.11 to issue a single Allocate call per pod.
The change will also facilitate incremental API change to communicate
pod level information through Allocate rpc if there is such future
need.
The word 'manifest' technically refers to a container-group specification
that predated the Pod abstraction. We should avoid using this legacy
terminology where possible. Fortunately, the Kubelet's config API will
be beta in 1.10 for the first time, so we still had the chance to make
this change.
I left the flags alone, since they're deprecated anyway.
I changed a few var names in files I touched too, but this PR is the
just the first shot, not the whole campaign
(`git grep -i manifest | wc -l -> 1248`).
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 spelling checking script
**What this PR does / why we need it**:
Add spell checking script to avoid involving any typos.
Currently many small PRs are fixing those annoying typos, which is time-consuming and low efficient. We should add such a preflight check before a 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 @liggitt @smarterclayton
**Release note**:
```release-note
add spelling checking script
```
