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Change CPU sample sanitization in HPA.
**What this PR does / why we need it**:
Change CPU sample sanitization in HPA.
Ignore samples if:
- Pod is beeing initalized - 5 minutes from start defined by flag
- pod is unready
- pod is ready but full window of metric hasn't been colected since
transition
- Pod is initialized - 5 minutes from start defined by flag:
- Pod has never been ready after initial readiness period.
**Release notes:**
```release-note
Improve CPU sample sanitization in HPA by taking metric's freshness into account.
```
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Fix ipam controller to not drop nodes forever in case of failures
https://github.com/kubernetes/kubernetes/pull/68084 introduced a problem that when 10 attempts to assign a cidr would fail, we stop retrying but the node is still marked as "in-processing" so it would never be reconciled again.
This PR is fixing this problem.
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kube-ctrl-mgr: enable secure port 10257
This PR enables authn+authz (delegated to the kube-apiserver) and the secure port 10257 for the kube-controller-manager. In addition, the insecure port is disabled.
Moreover, it adds integration test coverage for the `--port` and `--secure-port` flags, plus the testserver infrastructure to tests flags in general inside integration tests.
```release-note
Enable secure serving on port 10257 to kube-controller-manager (configurable via `--secure-port`). Delegated authentication and authorization have to be configured like for aggregated API servers.
```
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Refactor admission webhook client code to a apiserver/pkg/util package
As part of #67006 This refactoring enable us to share code between admission webhooks and CRD conversion webhooks.
@deads2k @lavalamp @sttts @kubernetes/sig-api-machinery-misc
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fix select zone error in azure disk creation
**What this PR does / why we need it**:
fix select zone error in azure disk creation, this issue only happens in v1.12
**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#68043
**Special notes for your reviewer**:
**Release note**:
```
none
```
/kind bug
/sig azure
/assign @feiskyer
cc @khenidak
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wait until apiserver connection before starting kubelet tls bootstrap
I wonder if this helps with sometimes slow network programming
cc @mwielgus @awly
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promote TokenRequest and projection to beta in 1.12
```release-note
TokenRequest and TokenRequestProjection are now beta features. To enable these feature, the API server needs to be started with the following flags:
* --service-account-issuer
* --service-account-signing-key-file
* --service-account-api-audiences
```
Ignore samples if:
- Pod is beeing initalized - 5 minutes from start defined by flag
- pod is unready
- pod is ready but full window of metric hasn't been colected since
transition
- Pod is initialized - 5 minutes from start defined by flag:
- Pod has never been ready after initial readiness period.
Automatic merge from submit-queue (batch tested with PRs 67368, 59930, 68074). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
implement InstanceShutdownByProviderID to aws cloudprovider
**What this PR does / why we need it**: implement InstanceShutdownByProviderID to aws cloudprovider
**Which issue(s) this PR fixes**:
Fixes#59925
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 67368, 59930, 68074). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
use CertificatesV1beta1() instead of deprecated Certificates()
**What this PR does / why we need it**:
/kind cleanup
**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 is the old behaviour and we did not intent to change it due to enabled authn/z in general.
As the kube-apiserver this sets the "system:unsecured" user info.
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Move kubelet internal ComponentConfig types to `pkg/kubelet/apis/config`
**What this PR does / why we need it**:
This PR is split out from the main PR of https://github.com/kubernetes/kubernetes/pull/67263, in order to make merging each scoped piece of the puzzle easier and smoother.
This PR simply moves the `k8s.io/kubernetes/pkg/apis/kubeletconfig` as-is to `k8s.io/kubernetes/pkg/apis/config` as agreed in the KEP.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref: kubernetes/community#2354
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
@kubernetes/sig-node-pr-reviews
/assign @mtaufen @thockin @liggitt
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Promote AdvancedAuditing to GA
**What this PR does / why we need it**:
Removes deprecated legacy code used for basic audit logging in favor of advanced audit logging.
```release-note
Promote AdvancedAuditing to GA, replacing the previous (legacy) audit logging mechanisms.
```
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Add support for unmanaged nodes for Azure cloud provider
**What this PR does / why we need it**:
Continue of [Azure cross resource groups feature](https://github.com/kubernetes/features/issues/604).
This PR adds support for unmanaged nodes (such as on-prem or on other clouds) that are labeled with `alpha.service-controller.kubernetes.io/exclude-balancer=true` and `kubernetes.azure.com/managed=false`. Azure cloud provider would exclude such nodes from LoadBalancer backends and always assumes they are existing.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
See KEP [here](https://github.com/kubernetes/community/blob/master/keps/sig-azure/0025-20180809-cross-resource-group-nodes.md).
**Special notes for your reviewer**:
Azure cloud provider won't provision network routes for on-prem nodes, so cluster admins should ensure the network (including pod-to-pod, pod-to-node and node-to-node connectivity) has been set up properly.
**Release note**:
```release-note
Azure cloud provider now supports unmanaged nodes (such as on-prem) that are labeled with `kubernetes.azure.com/managed=false` and `alpha.service-controller.kubernetes.io/exclude-balancer=true`
```
/assign @khenidak @andyzhangx
/sig azure
/kind feature
/milestone v1.12
Automatic merge from submit-queue (batch tested with PRs 66577, 67948, 68001, 67982). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
implement InstanceShutdownByProviderID to openstack
**What this PR does / why we need it**: without this openstack cannot get shutdown taint when instance is shutdown (original pr where this feature was added https://github.com/kubernetes/kubernetes/pull/60009)
**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
Openstack supports now node shutdown taint. Taint is added when instance is shutdown in openstack.
```
Automatic merge from submit-queue (batch tested with PRs 67745, 67432, 67569, 67825, 67943). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Fix VMWare VM freezing bug by reverting #51066
**What this PR does / why we need it**: kube-controller-manager, VSphere specific: When the controller tries to attach a Volume to Node A that is already attached to Node B, Node A freezes until the volume is attached. Kubernetes continues to try to attach the volume as it thinks that it's 'multi-attachable' when it's not. #51066 is the culprit.
**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/vmware/kubernetes/issues/500 / https://github.com/vmware/kubernetes/issues/502 (same issue)
**Special notes for your reviewer**:
- Repro:
Vsphere installation, any k8s version from 1.8 and above, pod with attached PV/PVC/VMDK:
1. cordon the node which the pod is in
2. `kubectl delete po/[pod] --force --grace-period=0`
3. the pod is immediately rescheduled to a new node. Grab the new node from a `kubectl describe [pod]` and attempt to Ping it or SSH into it.
4. you can see that pings/ssh fail to reach the new node. `kubectl get node` shows it as 'NotReady'. New node is frozen until the volume is attached - usually 1 minute freeze for 1 volume in a low-load cluster, and many minutes more with higher loads and more volumes involved.
- Patch verification:
Tested a custom patched 1.9.10 kube-controller-manager with #51066 reverted and the above bug is resolved - can't repro it anymore. New node doesn't freeze at all, and attaching happens quite quickly, in a few seconds.
**Release note**:
```
Fix VSphere VM Freezing bug by reverting #51066
```
Automatic merge from submit-queue (batch tested with PRs 67745, 67432, 67569, 67825, 67943). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Move volume dynamic provisioning scheduling to beta
**What this PR does / why we need it**:
* Combine feature gate VolumeScheduling and DynamicProvisioningScheduling into one
* Add allowedTopologies description in kubectl
**Special notes for your reviewer**:
Wait until related e2e and downside plugins are ready.
/hold
**Release note**:
```release-note
Move volume dynamic provisioning scheduling to beta (ACTION REQUIRED: The DynamicProvisioningScheduling alpha feature gate has been removed. The VolumeScheduling beta feature gate is still required for this feature)
```
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Fix panic when choosing zone or zones for volume
**What this PR does / why we need it**:
Fix panic when choosing zone or zones for volume, so that zoneSlice won't divide by zero now.
**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 @ddebroy @andyzhangx
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Add DataSource and TypedLocalObjectReference
**What this PR does / why we need it**:
This PR adds TypedLocalObjectReference in the core API and adds DataSource in PersistentVolumeClaimSpec.
It also enables feature gate for VolumeSnapshotDataSource.
This is part of the CSI snapshot design proposal to support restoring a volume from a snapshot:
kubernetes/community#2495
**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/features#177
**Special notes for your reviewer**:
**Release note**:
```release-note
Added support to restore a volume from a volume snapshot data source.
```
On-prem nodes should register themselves with required labels, e.g.
kubelet --node-labels=alpha.service-controller.kubernetes.io/exclude-balancer=true,kubernetes.azure.com/managed=false ...
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should not event directly
**What this PR does / why we need it**:
should not event directly, using recordContainerEvent() to generate ref and deduplicate events instead.
**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 67067, 67947). 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>.
Do not count soft-deleted pods for scaling purposes in HPA controller
**What this PR does / why we need it**:
The metrics of "soft-deleted" pods in general to be deleted should probably not matter for scaling purposes, since they'll be gone "soon", whether they're nodelost or just normally delete.
As long as soft-deleted pods still exist, they prevent normal scale up.
**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/62845
**Special notes for your reviewer**:
**Release note**:
```release-note
Stop counting soft-deleted pods for scaling purposes in HPA controller to avoid soft-deleted pods incorrectly affecting scale up replica count calculation.
```
