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>.
remove confusing flexibility for metadata interpretation
Metadata accessors are coded in. This means that we don't need to inject flexibility, the flexibility is already present based on what your code relies up. This removes the per-individual resource injection which simplifies all calling code.
intersection of @kubernetes/sig-api-machinery-pr-reviews @kubernetes/sig-cli-maintainers
```release-note
NONE
```
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 validation in kubectl create if no file in directory
**What this PR does / why we need it**:
if no yaml or json file in a directory
```
# ./cluster/kubectl.sh create -f ../0/1 --dry-run
pod "nginx" created (dry run)
# ./cluster/kubectl.sh create -f ../0
error: You must provide one or more resources by argument or filename.
Example resource specifications include:
'-f rsrc.yaml'
'--filename=rsrc.json'
'<resource> <name>'
'<resource>'
```
expected:
```
# ./cluster/kubectl.sh create -f ../0
error: error reading [../0]: please make sure the file extension is [.json .yaml .yml]
```
**Which issue this PR fixes**: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 60499, 61715, 61688, 61300, 58787). 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>.
fix kubectl apply error message
**What this PR does / why we need it**:
Fix messy code in kubectl apply error message.
**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/kubectl#197
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/sig cli
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include file name in the error when visiting files
**What this PR does / why we need it**:
/kind bug
/sig cli
**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#60916
**Special notes for your reviewer**:
/cc @kubernetes/sig-cli-api-reviews
**Release note**:
```release-note
include file name in the error when visiting files
```
Automatic merge from submit-queue (batch tested with PRs 57500, 58840, 58883). 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>.
Make REST mappings for resources a unique list
This ensures the mappings list for resources(shortcuts, plural) unique,
instead of doing multiple requests to server for the same resource.
**What this PR does / why we need it**:
Treat resource shortcuts, plurals the same thing on kubectl side instead of doing multiple requests to servers, and outputs should not duplicate entires.
**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#57498
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Callers must take a dependency on one or the other set of conversions
and default client behavior. Future changes may add a Versioned() type,
but this is an accurate reflection of current code state.
The unified RESTMapper and Typer follow the new rules, but on error will
fallback to the legacy path (while still supporting Unstructured
objects). This allows callers to handle the appropriate distinction
themselves if necessary.
Add a LocalParam() method to the resource.Builder that DRYs up a large
chunk of complicated code in set commands.
Demonstrate its use with get.go by removing the need to call decode with
a hardcoded scheme. Add tests to get_test.go to restore proving that
unstructured conversion is possible.
Gives the builder a hook point to add settings to each request. These
settings are applied before the request is created and so are unable to
view the request. Intended to set controls on a per request basis.
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>.
Support api chunking in kubectl get
This enables chunking in the resource builder to make it easy to
retrieve resources in pages and visit partial result sets. This adds
`--chunk-size` to `kubectl get` only so that users can get comfortable
with the use of chunking in beta. Future changes will enable chunking
for all CLI commands so that bulk actions can be performed more
efficiently.
```
$ kubectl get pods --all-namespaces
... print batch of 500 pods ...
... print second batch of 500 pods ...
...
```
@kubernetes/sig-cli-pr-reviews @kubernetes/sig-api-machinery-pr-reviews
```release-note
`kubectl get` will by default fetch large lists of resources in chunks of up to 500 items rather than requesting all resources up front from the server. This reduces the perceived latency of managing large clusters since the server returns the first set of results to the client much more quickly. A new flag `--chunk-size=SIZE` may be used to alter the number of items or disable this feature when `0` is passed. This is a beta feature.
```
This enables chunking in the resource builder to make it easy to
retrieve resources in pages and visit partial result sets. This adds
`--chunk-size` to `kubectl get` only so that users can get comfortable
with the use of chunking in beta. Future changes will enable chunking
for all CLI commands so that bulk actions can be performed more
efficiently.
Automatic merge from submit-queue (batch tested with PRs 53743, 53564). 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>.
Polymorphic Scale Client
This PR introduces a polymorphic scale client based on discovery information that's able to scale scalable resources in arbitrary group-versions, as long as they present the scale subresource in their discovery information.
Currently, it supports `extensions/v1beta1.Scale` and `autoscaling/v1.Scale`, but supporting other versions of scale if/when we produce them should be fairly trivial.
It also updates the HPA to use this client, meaning the HPA will now work on any scalable resource, not just things in the `extensions/v1beta1` API group.
**Release note**:
```release-note
Introduces a polymorphic scale client, allowing HorizontalPodAutoscalers to properly function on scalable resources in any API group.
```
Unblocks #29698
Unblocks #38756
Unblocks #49504Fixes#38810
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>.
kubectl resource builder to use versioned list
Switch to using a versioned listed when return an object from the resource builder.
This is necessary to allow cli's built outside the kubernetes/kubernetes repo to vendor the resource builder logic without vendoring all of Kubernetes.
The following commands call the modified function. (identified by changing the function name and recompiling)
- [x] `attach`
- pkg/kubectl/cmd/attach.go:155: builder.Do().Object
- passes to `AttachablePodForObject` which does not support Lists of any kind
- [x] `get`
- pkg/kubectl/cmd/get.go:251: r.Object
- [x] check if isList with `IsListType` -> `GetItemsPtr` -> check for presence of `Items` field
- [x] pass to `ResourceVersion` -> `CommonAccessor` -> checks for `metav1.ListInterface` (which this PR introduces a compile time check to ensure v1.List implements this)
- [x] pass to `ExtractList` -> checks if items implement `runtime.RawExtension`
- [x] `rolling_update`
- pkg/kubectl/cmd/rollingupdate.go:207: request.Object
- only accepts lists of length 1. updated in PR to support both api.List and v1.List
- [x] `rollout_status`
- pkg/kubectl/cmd/rollout/rollout_status.go:107: r.Object
- passes to `ResourceVersion` -> `CommonAccessor` -> checks for `metav1.ListInterface`
```release-note
NONE
```
Closeskubernetes/kubectl#81
Previously, the fake RESTClient in client-go required a Registry. It
used the Registry to fetch the GroupVersion for the fake client.
However, the way it did so was dubious in some cases (it hard-coded the
default API group in places), and not strictly necssary.
This updates the fake client to just recieve the GroupVersion and
internal group name directly, instead of requiring a Registry, so that
it can be consumed in unit tests where a Registry isn't necessarily
readily available (e.g. elsewhere in client-go).
Automatic merge from submit-queue (batch tested with PRs 53106, 52193, 51250, 52449, 53861). 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>.
Move version-conversion code out of shared kubectl resource package
```release-note
NONE
```
David Eads