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>.
Allow HPA to get custom metrics
**What this PR does / why we need it**:
This PR allows HPA to read custom metrics.
**Release note**:
```release-note
Allow HPA to read custom metrics.
```
Automatic merge from submit-queue (batch tested with PRs 53903, 53914, 54374). 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 PodDisruptionBudget to scheduler cache.
**What this PR does / why we need it**:
This is the first step to add support for PodDisruptionBudget during preemption. This PR adds PDB to scheduler cache.
**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**: None
**Release note**:
```release-note
Add PodDisruptionBudget to scheduler cache.
```
ref/ #53913
Automatic merge from submit-queue (batch tested with PRs 52147, 54309). 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 bootstrap policy with replicaset/daemonset permissions in the apps API group
Resolves#54310
Bootstrap policy was not updated when replicasets and daemonsets got promoted to the apps group
```release-note
Resolves forbidden error when accessing replicasets and daemonsets via the apps API group
```
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>.
allow */subresource in rbac policy rules
xref #29698
xref #38756
xref #49504
xref #38810
Allow `*/subresource` format in RBAC policy rules to support polymorphic subresources like `*/scale` for HPA.
@DirectXMan12 fyi
```release-note
RBAC PolicyRules now allow resource=`*/<subresource>` to cover `any-resource/<subresource>`. For example, `*/scale` covers `replicationcontroller/scale`.
```
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>.
pkg/api: extract Scheme/Registry/Codecs into pkg/api/legacyscheme
This serves as
- a preparation for the pkg/api->pkg/apis/core move
- and makes the dependency to the scheme explicit when vizualizing
left depenncies.
The later helps with our our efforts to split up the monolithic repo
into self-contained sub-repos, e.g. for kubectl, controller-manager
and kube-apiserver in the future.
Since we weren't running the HPA with metrics REST clients by default,
we had no bootstrap policy enabling the HPA controller to talk to the
metrics APIs.
This adds permissions for the HPA controller to talk list
pods.metrics.k8s.io, and list any resource in custom.metrics.k8s.io.
Automatic merge from submit-queue
Add pod preemption to the scheduler
**What this PR does / why we need it**:
This is the last of a series of PRs to add priority-based preemption to the scheduler. This PR connects the preemption logic to the scheduler workflow.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#48646
**Special notes for your reviewer**:
This PR includes other PRs which are under review (#50805, #50405, #50190). All the new code is located in 43627afdf9.
**Release note**:
```release-note
Add priority-based preemption to the scheduler.
```
ref/ #47604
/assign @davidopp
@kubernetes/sig-scheduling-pr-reviews
This change refactors various RBAC authorizer functions to be more
flexible in their inputs. This makes it easier to reuse the various
components that make up the authorizer.
Signed-off-by: Monis Khan <mkhan@redhat.com>
Automatic merge from submit-queue
fix err message in namespace_policy
**What this PR does / why we need it**:
**Which issue this PR fixes**: fixes#49541
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 49284, 49555, 47639, 49526, 49724)
Add clusterroles for approving CSRs easily
**What this PR does / why we need it**:
Adds ClusterRoles for CSR approving. Currently consumers like kubeadm and GKE have to create these rules by themselves, but are doing it slightly differently which leads to sprawl. Instead, the ClusterRoles are created by core, and the actual bindings created by respective deployment method.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes https://github.com/kubernetes/kubernetes/issues/48191
**Special notes for your reviewer**:
**Release note**:
```release-note
The API Server now automatically creates RBAC ClusterRoles for CSR approving.
Each deployment method should bind users/groups to the ClusterRoles if they are using this feature.
```
cc @kubernetes/sig-auth-pr-reviews @kubernetes/sig-cluster-lifecycle-pr-reviews
