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kubeadm: Use the API machinery for marshalling
**What this PR does / why we need it**:
Similar to https://github.com/kubernetes/kubernetes/pull/63723, we should not use a generic `yaml`
package for marshalling, but use the API machinery we have already in place. This now correctly includes `apiVersion` and `kind` when printing the configuration in the upgrade procedure.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Part of https://github.com/kubernetes/community/pull/2131
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
@kubernetes/sig-cluster-lifecycle-pr-reviews @liztio
Automatic merge from submit-queue (batch tested with PRs 63588, 63806). 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>.
kubeadm - do not generate etcd ca/certs for external etcd
**What this PR does / why we need it**:
Currently we generate an etcd CA and certificates even if we are specifying an external etcd cluster when running `kubeadm init`, this PR changes this behavior to skip generating the etcd CA and certificates if configured for an external etcd cluster.
**Which issue(s) this PR fixes**
Fixes https://github.com/kubernetes/kubeadm/issues/807
**Release note**:
```release-note
kubeadm will no longer generate an unused etcd CA and certificates when configured to use an external etcd cluster.
```
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Run FSGroup tests by default.
There is no special feature flag for FSGroup and the tests can run in all test suites. They're reasonably fast too.
**Release note**:
```release-note
NONE
```
cc: @jeffvance
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Kubeadm: Update comments and UT to remove /66 restriction
**What this PR does / why we need it**:
The comments in cmd/kubeadm/app/phases/controlplane/manifests.go mention the
IPv6 /66 restriction, and the UT also refers to this.
This restriction was removed in PR#60089
This removes those comments and updates the UT
**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#62806
**Special notes for your reviewer**:
**Release note**:
```release-note-none
```
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kubeadm-init: update note about failing containers
**What this PR does / why we need it**:
This PR was merged before all requested changes
were applied:
kubernetes/pull/59731
Update the note about failing containers as requested here:
https://github.com/kubernetes/kubernetes/pull/59731#pullrequestreview-119517427
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
NONE
**Special notes for your reviewer**:
NONE
**Release note**:
```release-note
NONE
```
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Kubeadm marshal tests
**What this PR does / why we need it**:
Adds tests for the marshalling utilities in kubeadm.
**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: kubernetes/kubeadm#802
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Rename `kubeadmapiext` to the more explicit `kubeadmapiv1alpha1`
**What this PR does / why we need it**:
`kubeadmext` is somewhat confusing to those who read the code (although it means "the external API of kubeadm", which to some degree makes sense), so I'm swapping all references to it to the more explicit `kubeadmapiv1alpha1`. This change is needed given that we will support multiple external APIs.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Part of https://github.com/kubernetes/community/pull/2131
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
@kubernetes/sig-cluster-lifecycle-pr-reviews @liztio
Automatic merge from submit-queue (batch tested with PRs 63761, 63794, 63649). 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 missing flag value bindings in kubectl
**What this PR does / why we need it**:
When working #63644, I find there are still some flag not bound correctly.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
xref #60366
**Special notes for your reviewer**:
/cc soltysh deads2k
/cc kubernetes/sig-cli-api-reviews
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 63761, 63794, 63649). 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 unused PrintFlags.Scheme
PrintFlags.Scheme is unused, remove it.
**Release note**:
```release-note
NONE
```
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Avoid copying aggregated admin/edit/view roles during bootstrap
Fixes#63760
At apiserver startup, prior to reconciling cluster roles, the following roles (if they exist) are copied:
* admin -> system:aggregate-to-admin
* edit -> system:aggregate-to-edit
* view -> system:aggregate-to-view
This was added in 1.9 as part of role aggregation to ensure custom permissions added to the admin/edit/view roles were preserved, prior to making the admin/edit/view roles aggregated (since the permissions of an aggregated role are controller-managed)
When starting multiple members of a new HA cluster simultaneously, the following race can occur:
* t=0, server 1,2,3 start up
* t=1, server 1 finds no admin/edit/view roles exist, begins role reconciliation and creates the aggregated `admin` role
* t=2, server 2 finds and copies the `admin` role created by server 1 to `system:aggregate-to-admin`
If this race is encountered, it results in `system:aggregate-to-admin` being an aggregated role, and its permissions subject to being overwritten by the aggregating controller. To prevent this from happening, the permission-preserving copy should only copy over roles that are not yet aggregated.
To correct this in clusters that have already encountered it, role reconciliation should remove aggregation from a role that is not expected to be aggregated at all.
```release-note
corrects a race condition in bootstrapping aggregated cluster roles in new HA clusters
```
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Updated README to include client-go<->controller diagram
The sample-controller makes extensive use of various mechanisms
available in client-go. For writing custom controllers/operators
it will be helpful if there is precise description of how the
client-go library works and how/where it interfaces with
custom controller code.
Recently we published a blog post with these details here:
https://medium.com/@cloudark/kubernetes-custom-controllers-b6c7d0668fdf
This patch includes the diagram from the post, as was recommended
by @sttts on https://github.com/kubernetes/sample-controller/issues/13
**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
```
New pod timeseries was introduced that has same labels for namespace and
pod_name resulting in doubling value in old query. New metric is not
based on containers so filtering on image solves that problem.
Automatic merge from submit-queue (batch tested with PRs 62833, 63585). 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 comments for ipset entries in kube-proxy
**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#63584
**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>.
Add necessary explanation for container log rotation.
**What this PR does / why we need it**:
#59898
> Container log manager only starts when the container runtime is remote (not docker), because we can't implement ReopenContainerLog for docker.
**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>.
Adds initial Korean translations for kubectl
**What this PR does / why we need it**:
This PR provides a first attempt to translate kubectl in Korean (related to #51867, #40645, #45573, #45562, #40591, #46559, #50155).
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
No issues
**Special notes for your reviewer**:
This PR requires Korean people to assist in the review. I am native in Korean and also a translator & reviewer in Korean in OpenStack I18n team (http://stackalytics.com/?metric=translations&user_id=ianychoi ).
**Release note**:
```release-note
Adding initial Korean translation for kubectl
```
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Control exactly what we use in kubeadm
**What this PR does / why we need it**:
we recently got rid of extra arg validation for preflight check:
9f21f5dd1e
the import-boss configuration will help us control exactly what
gets added/used in kubeadm. In this PR, we add a white-list of
the exact packages we use currently.
We will need to review these, make new PR(s) to eliminate things
we don't want to be depending on (just like the cloud provider related code).
**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
```
we recently got rid of extra arg validation for preflight check:
9f21f5dd1e
the import-boss configuration will help us control exactly what
gets added/used in kubeadm. In this PR, we add a white-list of
the exact packages we use currently.
We will need to review these, make new PR(s) to eliminate things
we don't want to be depending on (just like the cloud provider related code).
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>.
Revisit the OWNERS file for kubeadm
**What this PR does / why we need it**:
The OWNERS file for kubeadm is getting a little bit stale. As discussed in today's SIG Cluster Lifecycle meeting, we're gonna update it with the currently active contributors.
**Special notes for your reviewer**:
Every person that is involved here, please ACK and LGTM the change.
@jbeda removed from approvers
@krousey removed from approvers/reviewers
@fabriziopandini graduated to an approver
@dmmcquay removed from reviewers
@jamiehannaford removed from reviewers
@kargakis removed from reviewers
@liztio added to reviewers
@chuckha added to reviewers
@detiber added to reviewers
@stealthybox added to reviewers
@dixudx added to reviewers
Thank you everyone for your contributions 👏 (no one can't maintain something forever), and congratulations and welcome everyone with a new role, happy to have you here 👍!
**Release note**:
```release-note
NONE
```
cc @kubernetes/sig-cluster-lifecycle-pr-reviews
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Removed unused namespace in UT helper func.
Signed-off-by: Da K. Ma <klaus1982.cn@gmail.com>
**Release note**:
```release-note
None
```
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clean unused variables on serviceaccounts_controller_test.go
**What this PR does / why we need it**:
this patch simply removes unused variables
**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 63686, 63736). 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 bad sleep - int as duration
Sleep(2) is probably not what was intended.
**Release note**:
```release-note
NONE
```
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