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Recheck if transformed data is stale when doing live lookup during update
Fixes#49565
Caching storage can pass in a cached object to `GuaranteedUpdate` as a hint for the current object.
If the hint is identical to the data we want to persist, before short-circuiting as a no-op update, we force a live lookup.
We should check two things on the result of that live lookup before short-circuiting as a no-op update:
1. the bytes we want to persist still match the transformed bytes read from etcd
2. the state read from etcd didn't report itself as stale. this would mean the transformer used to read the data would not be the transformer used to write it, and "no-op" writes should still be performed, since transformation will make the underlying content actually different.
After a live lookup, we checked byte equality, but not the stale indicator. This meant that key rotation or encrypted->decrypted, and decrypted->encrypted updates are broken.
Introduced in #54780 and picked back to 1.8 in #55294
```release-note
Fixed encryption key and encryption provider rotation
```
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etcd client: add keepalive
**What this PR does / why we need it**: This PR shortens the keepaliveTimeout and enables keepalive within the etcd client to allow the socket to be closed cleanly on a dead etcd 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#46964
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/cc @xiang90
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feat(fakeclient): push event on watched channel on add/update/delete
**What this PR does / why we need it**:
This PR enables watch function for kubernetes [fakeclient](1bcf0b0a22/staging/src/k8s.io/client-go/kubernetes/fake/clientset_generated.go (L88)).
This fake client add watchReactorFunction by wrapping [watch.NewFake](1bcf0b0a22/staging/src/k8s.io/client-go/kubernetes/fake/clientset_generated.go (L98)) which is a `chan Event` but actually nothing pushes objects into this channel. So all watch function called by fake client will never return or never receive any object.
This PR intercepts ReactionFunc of `Create / Update / DeleteActionImpl` and will push the requested object to channel.
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#54075
**Special notes for your reviewer**:
**Release note**:
```dev-release-note
enable watch function for fake client
```
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Add support for submitting/receiving CRD objects as yaml
Fixes#37455
```release-note
Custom resources can now be submitted to and received from the API server in application/yaml format.
```
fix races with watch call
add test for non-namespace resource watch
add matching for all-namespace-watch
fix delete namespace watch & restrict test
fix multiple invocation on same resource & namespace
add descriptive doc for tracker.watchers
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added defaults for --watch-cache-sizes description.
**What this PR does / why we need it**:
added defaults for --watch-cache-sizes description to make it clear what the defaults would be when not specified
**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 #
#57105
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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wires the generic scaler to kubectl
**What this PR does / why we need it**:
the changes introduced in this commit plumbs in the generic scaler to kubectl.
note that we don't change the behaviour of kubectl.
For example it won't scale new resources. That's the end goal.
The first step is to retrofit existing code to use the generic scaler.
**Release note**:
```release-note
NONE
```
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refactor customeresource handler
**What this PR does / why we need it**:
- fix data race bug
- fix lock usage bug.
- remove some redundant 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#57882
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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client-go: remove open-api import from types
This builds off of https://github.com/kubernetes/kube-openapi/pull/21 and removes the following imports from `k8s.io/client-go/kubernetes`:
```
github.com/PuerkitoBio/purell
github.com/PuerkitoBio/urlesc
github.com/emicklei/go-restful
github.com/emicklei/go-restful/log
github.com/go-openapi/jsonpointer
github.com/go-openapi/jsonreference
github.com/go-openapi/spec
github.com/go-openapi/swag
github.com/mailru/easyjson/buffer
github.com/mailru/easyjson/jlexer
github.com/mailru/easyjson/jwriter
golang.org/x/text/cases
golang.org/x/text/internal
golang.org/x/text/internal/tag
golang.org/x/text/language
golang.org/x/text/runes
golang.org/x/text/secure/precis
golang.org/x/text/width
k8s.io/kube-openapi/pkg/common
```
/assign @sttts
/assign @mbohlool
cc @kubernetes/sig-api-machinery-pr-reviews
```release-note
NONE
```
note that we don't change the behaviour of kubectl.
For example it won't scale new resources. That's the end goal.
The first step is to retrofit existing code to use the generic scaler.
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 admission into RecommendedOptions
**What this PR does / why we need it**:
make admission part of the RecommendedOptions
**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#56627
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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client-go: remove import of github.com/gregjones/httpcache
Moves NewCacheRoundTripper from `k8s.io/client-go/transport` to its own package. This prevents Kubernetes clients from requiring its dependencies.
This change removes the following transitive imports from `k8s.io/client-go/kubernetes`
```
github.com/google/btree
github.com/gregjones/httpcache
github.com/gregjones/httpcache/diskcache
github.com/peterbourgon/diskv
```
```release-note
NONE
```
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manually handle encoding and decoding in the scale client
@p0lyn0mial I think this resolves the problems you're seeing in https://github.com/kubernetes/kubernetes/pull/57843 by manually controlling the encode and decode in the client itself.
/assign @DirectXMan12
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fixed some bad url
**What this PR does / why we need it**:
fixed some bad url
**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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Treat staging repos as authoritative source for all files
Add CONTRIBUTING.md files to remind people not to PR directly into the published repos.
/hold
I believe this requires removing these files from the published repos if any copies exist there
ref: kubernetes/kubernetes#57559
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Let mutating webhook defaults the object
...after applying the patch sent back by the webhook
This should be treated as a bug and cherrypicked to 1.9.
Fixes#57982
