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Remove dependency on drv_cfg binary for querying ScaleIO devices
**What this PR does / why we need it**:
This PR fixes the issue where a ScleIO kubernetes plugin required additional binary `drv_cfg` to be present on the local node to work properly, making it harder for the kubelet binary to be containerized without providing access to local paths inside 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#54954
**Special notes for your reviewer**:
**Release note**:
```release-note
ScaleIO driver completely removes dependency on drv_cfg binary so a Kubernetes cluster can easily run a containerized kubelet.
```
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Improve unit test coverage for network policy validation.
**What this PR does / why we need it**:
`ok k8s.io/kubernetes/pkg/apis/networking/validation 0.074s coverage: 87.8% of statements`
to
`ok k8s.io/kubernetes/pkg/apis/networking/validation 0.082s coverage: 100.0% of statements`
**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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clean up legacy ipv4/32 in ipvs proxy
**What this PR does / why we need it**:
clean up legacy ipv4/32 in ipvs proxy
**Which issue(s) this PR fixes**: closes#51866
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/sig network
/area ipv6
/assign @thockin
cc @danehans
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Add kubeadm way in ipvs proxy README
**What this PR does / why we need it**:
As #53962 which support specify proxy mode for kubeadm is already in, we should add ipvs proxy kubeadm way in README.md.
**Which issue(s) this PR fixes**:
Fixes#54978
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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StopPodSandbox should not log when container is already removed
**What this PR does / why we need it**:
StopPodSandbox should not log when a container is already gone. It should only log if it could not stop and the container was still present.
Fixes https://github.com/kubernetes/kubernetes/issues/55021
**Special notes for your reviewer**:
This was seen in our production logs, need to eliminate spam.
**Release note**:
```release-note
NONE
```
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Add admission handler for device resources allocation
**What this PR does / why we need it**:
Add admission handler for device resources allocation to fail fast during pod creation
**Which issue this PR fixes**
fixes#51592
**Special notes for your reviewer**:
@jiayingz Sorry, there is something wrong with my branch in #51895. And I think the existing comments in the PR might be too long for others to view. So I closed it and opened the new one, as we have basically reach an agreement on the implement :)
I have covered the functionality and unit test part here, and would set about the e2e part ASAP
/cc @jiayingz @vishh @RenaudWasTaken
**Release note**:
```release-note
NONE
```
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discovery client not depend on pkg/api/legacyscheme
Switch kubectl's cached discovery client to use kubect's scheme (pkg/kubectl/scheme) which only registered with external version types.
The encoding and decoding here uses only `k8s.io/apimachinery/pkg/apis/meta/v1.APIGroupList` and `k8s.io/apimachinery/pkg/apis/meta/v1.APIResourceList` which are not internal version. So it should be safe.
```release-note
NONE
```
/assign @monopole
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Cleanup resouce test
- Make client-go testing support decoding to external version
- Cleanup bad dependency of `pkg/kubectl/resource` pkg
```release-note
NONE
```
/assign @monopole @caesarxuchao
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Add a file store utility package in kubelet
More and more components checkpoints (i.e., persist their states) in
kubelet. Refurbish and move the implementation in dockershim to a
utility package to improve code reusability.
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Lift embedded structure out of ManifestURLHeader field
Related: #53833
```release-note
It is now possible to set multiple manifest url headers via the Kubelet's --manifest-url-header flag. Multiple headers for the same key will be added in the order provided. The ManifestURLHeader field in KubeletConfiguration object (kubeletconfig/v1alpha1) is now a map[string][]string, which facilitates writing JSON and YAML files.
```
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Support retainkeys strategy for new merge code
- Some prefactoring for retainkeys
- Add retainkeys strategy
```release-note
NONE
```
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should check and return err when visit failure
**What this PR does / why we need it**:
should check and return err when visit failure
**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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Update kube-openapi to use validation
**What this PR does / why we need it**: Moves openapi validation code to kube-openapi, so that we can move the rest of the code to apimachinery repository, so that later we can use it from both the client and the server.
**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 #Nothing
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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admission: wire through validating-only admission
Based on https://github.com/kubernetes/kubernetes/pull/54232.
This is important and required for beta because it affects the shape of the webhook admission plugins that are going to be produced and is needed to make sure that our existing chain continues to properly verify and protect the API objects based on their final state after webhook admission mutators run.
We discussed this in the October 11 API machinery call with @erictune and @caesarxuchao and we agreed to do this as a requirement for beta. See this part of the recording: https://www.youtube.com/watch?v=mrgDPHyr4VY#t=325 .
Automatic merge from submit-queue (batch tested with PRs 54800, 53898, 54812, 54921, 53558). 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>.
rename metric reflector_xx_last_resource_version
**What this PR does / why we need it**:
mv reflector name from metric name to metric label
before:
```
reflector_k8s_io_kubernetes_pkg_client_informers_informers_generated_internalversion_factory_go:73_8664_last_resource_version{instance="104.154.20.21:443",job="kubernetes-apiservers"}
```
after
```
reflector_last_resource_version{instance="10.0.2.15:6443",job="kubernetes-apiservers",name="k8s_io_kubernetes_pkg_client_informers_informers_generated_internalversion_factory_go_73_8664"}
```
**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#52121
**Special notes for your reviewer**:
None
**Release note**:
```release-note
NONE
```
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kubenet: yield lock while executing CNI plugin.
The CNI plugin can take up to 3 seconds to execute. CNI plugins can safely be
executed in parallel, so yield the lock to speed up pod creation.
This caused problems with the pod latency tests - previously, CNI plugins executed
in under 20ms. Now they must wait for DAD to finish and addresses to leave
tentative state.
Fixes: #54651
**What this PR does / why we need it**:
After upgrading CNI plugins to v0.6 in #51250, the pod latency tests began failing. This is because the plugins, in order to support IPv6, need to wait for DAD to finish. Because this
delay is while the kubenet lock is held, it significantly slows down the pod creation rate.
**Special notes for your reviewer**:
The CNI plugins also do locking for their critical paths, so it is safe to run them concurrently.
**Release note**:
```release-note
NONE
```
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Improve deleteOptions doc
**What this PR does / why we need it**:
This PR improves the doc of the 'PropagationPolicy' property of the DeleteOptions struct.
The said field is a string. It is very important a field for people who invoke a delete API.
For example, direct invocation of the deployment-delete API using the python client will have the replicaset and pods left behind. However, this field was not well documented. When people wanted to try different options, they have to dig into k8s source code to find out the acceptable values.
**Which issue this PR fixes**: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Update the get command to follow more conventions of commands
Pure code movement, builds on top of #54446 and only the last commit is new. Will make refactoring get easier.
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Inventory of kubectl dependency on main repository
**What this PR does / why we need it**:
Add an import-boss file to inventory what kubectl depends on, so
we can prune this list over time and eventually get kubectl out
of the main k/k repository.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Related to https://github.com/kubernetes/kubectl/issues/114
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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refactor ReplicaSet sync call tree
**What this PR does / why we need it**:
This PR refactors ReplicaSet sync call tree by refactoring `manageReplicas` and `syncReplicaSet` functions into smaller functions, and adding unit tests to each of the smaller functions.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: xref #52118
**Release note**:
```release-note
NONE
```
**TODO**:
- `manageReplicas`
- [x] move both outer and inner `batchSize` loops to a helper function named `slowStartBatch`, and test the function
- [x] add a helper function returning a list named `podsToDelete`, test the function, and refactor `DeletePod` loop to use the list
- [x] refactor skipped pod handling such that it happens after `slowStartBatch` returns
- `syncReplicaSet`
- [x] add unit tests for `calculateStatus`
- [x] move `canAdoptFunc` to a helper function
Automatic merge from submit-queue (batch tested with PRs 54894, 54630, 54828, 54926, 54865). 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>.
set leveled logging (v=4) for 'updating container' message
**What this PR does / why we need it**:
Currently cpu_manager.go logs a line for every pod at every reconcilePeriod (10 sec default) when it reconciles and updates the pod's cpuset setting. This creates a lot of logging information that is not very interesting and we should suppress that by default by increasing the logging level.
**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#54804
**Special notes for your reviewer**:
I chose V(4) because that seems to be a popular level for messages at this detail. Happy to follow logging guideline if there is any.
**Release note**:
``` kubelet: cpu_manager logs informative reconcile message at V(4) to reduce clutter ```
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trigger endpoint update on pod deletion
Fixes#54723
cc: @joelsmith
```release-note
Fix a bug where pod address is not removed from endpoints object while pod is in graceful termination.
```
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Update volume OWNERS to reflect active sig-storage reviewers
**What this PR does / why we need it**:
Update sig-storage reviewers to add new members and remove those that don't have as much time to review storage PRs. Approvers are unchanged.
**Special notes for your reviewer**:
For all those that have been removed, please approve. If you want to remain as a reviewer, let me know and I will add you back.
**Release note**:
NONE
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Kubeadm - Added initial support for Windows worker nodes to join cluster using kubeadm
**What this PR does / why we need it**:
This PR adds initial support for adding a Windows worker node to a Kubernetes cluster with kubeadm. Also adds Windows build of kubeadm to node build targets.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/kubernetes/kubeadm/issues/364
**Special notes for your reviewer**:
Depends on #53730
**Release note**:
```release-note
kubeadm: Add support for adding a Windows node
```
Add an import-boss file to inventory what kubectl depends on, so
we can prune this list over time and eventually get kubectl out
of the main k/k repository.
To update this list, You can list the dependencies using:
go list -f '{{ join .Deps "\n"}}' k8s.io/kubernetes/cmd/kubectl | grep
k8s.io/kubernetes | grep -v kubectl | grep -v vendor
Add the generated list of package names to .import-restrictions
file. Then run the hack/verify-import-boss.sh until you have you have
all the packages needed.
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Switch kubectl convert back to use legacyscheme and add tests
Revert the change of `convert.go` in #54533.
Add tests for kubectl convert.
Fixes#54873
```release-note
NONE
```
cc: @smarterclayton
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Prevent successful containers from restarting with OnFailure restart policy
**What this PR does / why we need it**:
This is a follow-on to #54597 which makes sure that its validation
also applies to pods with a restart policy of OnFailure. This
deficiency was pointed out by @smarterclayton here:
https://github.com/kubernetes/kubernetes/pull/54530#discussion_r147226458
**Which issue this PR fixes** This is another fix to address #54499
**Release note**:
```release-note
NONE
```
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fix azure file mount limit issue on windows due to using drive letter
**What this PR does / why we need it**:
It's not necessary to use drive letter in azure file mount, correct usage for New-SmbGlobalMapping is like following:
```
New-SmbGlobalMapping -RemotePath $AzureFilePath -Credential $Credential
mklink /D $mountPath $AzureFilePath
```
I removed the `LocalPath` parameter in New-SmbGlobalMapping
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#54668
Without this PR, there is a limit(25) for azure file mount number on each node because only 25 drive letters could be used on each windows node, With this PR, there would be no such limit.
**Special notes for your reviewer**:
@PatrickLang
**Release note**:
```
fix azure file mount limit issue on windows due to using drive letter
```
/sig azure
/sig windows
