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Prevent side effects on dryrun in service registry
```release-note
NONE
```
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Remove unused function timeoutFromListOptions()
**What this PR does / why we need it**:
It removes a function which is not exported and not called or referenced.
Re-opening #60215 after rebase.
**Which issue(s) this PR fixes**
No issue.
**Special notes for your reviewer**:
I guess it would be useful to know what this was supposed to be doing. I just happened upon it when trying to understand how watch timeouts were configured.
**Release note**:
```release-note
NONE
```
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Fix kubeadm init kernel validator display message error
Signed-off-by: Yuanbin.Chen <cybing4@gmail.com>
**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)*:
Fixeskubernetes/kubeadm#1051
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Added set and map structural validation for AllowedTopologies
**What this PR does / why we need it**: Adding structural validation to AllowedTopologies field in StorageClass.
**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#66184
**Release note**:
```release-note
AllowedTopologies field inside StorageClass is now validated against set and map semantics. Specifically, there cannot be duplicate TopologySelectorTerms, MatchLabelExpressions keys, and TopologySelectorLabelRequirement Values.
```
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HPA metrics specificity improvements
**What this PR does / why we need it**:
Improves available specificity for HPA metrics by adding metric selector fields for metrics of Pods and Objects.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Implements this KEP: https://github.com/kubernetes/community/pull/2055
**Special notes for your reviewer**:
Need to add/update tests?
**Release note**:
```release-note
Introduces autoscaling/v2beta2 and custom_metrics/v1beta2, which implement metric selectors for Object and Pods metrics, as well as allowing AverageValue targets on Objects, similar to External metrics.
```
/assign @DirectXMan12
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remove dead protobuf tags from test
The protobuf tags on this object are deceptive. The test doesn't actually verify proto and in fact requires using json instead. This makes for weird errors when you try to "fix" it.
/assign @enj
@kubernetes/sig-api-machinery-pr-reviews
```release-note
NONE
```
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Report cloudstack hostname address
Cloud providers are now authoritative for the addresses reported by the kubelet. Cloud providers that have hostname information available via metadata should report it for use by the apiserver
```release-note
The cloudstack cloud provider now reports a `Hostname` address type for nodes based on the `local-hostname` metadata key.
```
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vsphere: support zone tags at any level in the hierarchy
**What this PR does / why we need it**:
Rather than just looking for zone tags at the VM's Host level, traverse up the hierarchy.
This allows zone tags to be attached at host level, along with cluster, datacenter, root folder
and any inventory folders in between.
Issue #64021
Example log output from the tests, with tags attached at host level:
```console
Found "k8s-region" tag (k8s-region-US) for e85df495-93b9-4b0e-96f1-dc9d56e97263 attached to HostSystem:host-19
Found "k8s-zone" tag (k8s-zone-US-CA1) for e85df495-93b9-4b0e-96f1-dc9d56e97263 attached to HostSystem:host-19
```
And region tag at Datacenter level and zone tag at Cluster level:
```console
Found "k8s-zone" tag (k8s-zone-US-CA1) for e85df495-93b9-4b0e-96f1-dc9d56e97263 attached to ComputeResource:computeresource-21
Found "k8s-region" tag (k8s-region-US) for e85df495-93b9-4b0e-96f1-dc9d56e97263 attached to Datacenter:datacenter-2
```
**Release note**:
```release-note
NONE
```
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expose generic storage factory primitives
The `StorageFactory` is central to the idea of a generic and decorated storage configuration for a given resource. This pull exposes the "standard" one from the generic apiserver to allow easier composition without duplication.
@kubernetes/sig-api-machinery-pr-reviews
/assign @yue9944882 @sttts
```release-note
NONE
```
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apiserver: unify handling of unspecified options in authn/z options
Use nil pointer for unspecified, not some kind of half zero-valued structs.
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kubeadm: chroot to new --rootfs arg
**What this PR does / why we need it**:
This change adds a new --rootfs=path option to kubeadm, and (if
provided) chroot()s to this path before performing file operations.
This makes it possible to run the kubeadm binary from a container, but
perform remaining file operations against the host filesystem using
something like:
```
docker run -v /:/rootfs --net=host --uts=host --pid=host \
kubeadm:latest init ...
```
(Assuming something like the included `examples/kubeadm/Dockerfile` which sets CMD to `kubeadm --rootfs=/rootfs` - Edit: Dockerfile has been removed from this PR, but you get the idea)
Fixeskubernetes/kubeadm#503
**Special notes for your reviewer**:
- I'm not sure where is best to put the Dockerfile, or hook it up to the build process. Advice sought.
- The kubeadm command line arg handling was less unified than I was expecting to find. I've implemented this arg for `init` and `join`. I can add it to all the others too, if we're happy with the approach. An alternative would be to add the arg in the parent `KubeadmCommand`, possibly with a `PersistantFlag` - then it would automatically exist for all kubeadm subcommands.
- It would be slightly preferable if we could order `--rootfs` _before_ the subcommand so we could apply the arg automatically with `ENTRYPOINT ["kubeadm", "--rootfs=/rootfs"]`. This would be the only such flag in `kubeadm` however, so I have not implemented it that way atm. (Another alternative would be an env var)
**Release note**:
```release-note
Adds a new EXPERIMENTAL `--rootfs` flag to kubeadm, which (if specified) causes kubeadm to chroot before performing any file operations. This is expected to be useful when setting up kubernetes on a different filesystem, such as invoking kubeadm from docker.
```
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kubeadm config add support for more than one APIEndpoint
**What this PR does / why we need it**:
This PR completes the changes in kubeadm for management of more than one control plane instances introducing the possibility to configure more than one APIEndpoints
**Which issue(s) this PR fixes** :
refs https://github.com/kubernetes/kubeadm/issues/911, refs https://github.com/kubernetes/kubeadm/issues/963
**Special notes for your reviewer**:
Depends on:
- [x] https://github.com/kubernetes/kubernetes/pull/67830
**Release note**:
```release-note
kubeadm: The kubeadm configuration now support definition of more than one control plane instances with their own APIEndpoint. The APIEndpoint for the "bootstrap" control plane instance should be defined using `InitConfiguration.APIEndpoint`, while the APIEndpoints for additional control plane instances should be added using `JoinConfiguration.APIEndpoint`.
```
/cc @kubernetes/sig-cluster-lifecycle-pr-reviews
/sig cluster-lifecycle
/area kubeadm
/kind api-change
/kind enhancement
/assign @luxas
/assign @timothysc
/cc @chuckha @rosti @neolit123 @liztio
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del unused func DefaultEventFilterFunc
**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
NONE
```
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Dry run integration
Implement an integration test for dry-run. Also, this turns on the knob to allow dry-run requests, so let's be careful.
**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
NONE
```
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Enable dynamic azure disk volume limits
**What this PR does / why we need it**:
Enable dynamic azure disk volume limits,
This is an azure cloud provider implementation related to feature: [Dynamic Maximum volume count](https://github.com/kubernetes/features/issues/554)
**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#66269
**Special notes for your reviewer**:
This PR use `az.VirtualMachineSizesClient.List` to list all vm sizes under region, match vm size with current node size, and then got `MaxDataDiskCount`, the `GetVolumeLimits` happens in kubelet and will return `attachable-volumes-azure-disk` in node status as following example:
```
agentpool-22082114-0
...
allocatable:
attachable-volumes-azure-disk: "8"
cpu: "2"
ephemeral-storage: "28043041951"
hugepages-1Gi: "0"
hugepages-2Mi: "0"
memory: 7034772Ki
pods: "30"
```
**Release note**:
```
Enable dynamic azure disk volume limits
```
/sig azure
/kind feature
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Add unit test cases for scheduler/algorithm/predicates.
**What this PR does / why we need it**:
Add unit test cases for scheduler/algorithm/predicates for more code coverage.
**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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WaitForAllNodesSchedulable should check taints as well
**What this PR does / why we need it**:
In https://github.com/kubernetes/kubernetes/issues/67597 we see a lot of cases when test starts before not-ready and network-unavailable taints are removed from the nodes while they already have correct conditions.
This change makes sure that we wait for both.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/assign @wojtek-t
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refactor hard code in test/e2e/apimachinery/garbage_collector.go
**What this PR does / why we need it**:
refactor hard code in test/e2e/apimachinery/garbage_collector.go
**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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Add unit test cases for scheduler/util.
**What this PR does / why we need it**:
Add unit test cases for scheduler/util for more code coverage.
**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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Kubelet creates and manages node leases
This extends the Kubelet to create and periodically update leases in a
new kube-node-lease namespace. Based on [KEP-0009](https://github.com/kubernetes/community/blob/master/keps/sig-node/0009-node-heartbeat.md),
these leases can be used as a node health signal, and will allow us to
reduce the load caused by over-frequent node status reporting.
- add NodeLease feature gate
- add kube-node-lease system namespace for node leases
- add Kubelet option for lease duration
- add Kubelet-internal lease controller to create and update lease
- add e2e test for NodeLease feature
I would like to determine a standard policy for lease renewal frequency, based on the configured lease duration, so that we don't need to expose frequency as an additional knob. The renew interval is currently calculated as 1/3 of the lease duration.
```release-note
kubelet: Users can now enable the alpha NodeLease feature gate to have the Kubelet create and periodically renew a Lease in the kube-node-lease namespace. The lease duration defaults to 40s, and can be configured via the kubelet.config.k8s.io/v1beta1.KubeletConfiguration's NodeLeaseDurationSeconds field.
```
/cc @wojtek-t @liggitt
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Complement unit test case TestNodesWherePreemptionMightHelp for scheduler/core
**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
```
This extends the Kubelet to create and periodically update leases in a
new kube-node-lease namespace. Based on [KEP-0009](https://github.com/kubernetes/community/blob/master/keps/sig-node/0009-node-heartbeat.md),
these leases can be used as a node health signal, and will allow us to
reduce the load caused by over-frequent node status reporting.
- add NodeLease feature gate
- add kube-node-lease system namespace for node leases
- add Kubelet option for lease duration
- add Kubelet-internal lease controller to create and update lease
- add e2e test for NodeLease feature
- modify node authorizer and node restriction admission controller
to allow Kubelets access to corresponding leases
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Fix "hack/make-rules/test.sh"
**What this PR does / why we need it**:
For “make test”, it will output "dirname: missing operand".
**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
```
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Fix error link in comment
**What this PR does / why we need it**:
Fix error link in comment
**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**:
NONE
**Release note**:
```release-note
NONE
```
/sig node
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Make CredentialProvider config loading deterministic.
@mattmoor fixed an old TODO :)
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make stackdriver logging tests not block e2e runs
**What this PR does / why we need it**: prevents Stackdriver logging test failures from failing an e2e run
**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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controller expectations for deletion can be met by 404
A controller asks pod control to delete a pod because it wants the pod to be gone. It doesn't really care if the imperative delete action itself succeeds. When the pod is already gone (404), then the desire of the controller is met.
Since the pods themselves are cache driven, you can hit this condition more than you may like. See https://github.com/kubernetes/kubernetes/blob/master/pkg/controller/replicaset/replica_set.go#L582 as an example.
@kubernetes/sig-apps-bugs
/assign @janetkuo @tnozicka
```release-note
latent controller caches no longer cause repeating deletion messages for deleted pods
```
ksubrmnn
