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Fix potential unexpected object mutation that can lead to data races
**What this PR does / why we need it**:
In #51526 I introduced an optimization - do a deep copy instead of to and from JSON roundtrip to convert anything that implements `runtime.Unstructured`. I just discovered that the method that is used there `UnstructuredContent()` in both `Unstructured` and `UnstructuredList` may mutate the original object.
2008750398/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/unstructured.go (L87-L92)7c10cbc642/staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/unstructured_list.go (L58-L75)
This is problematic because previously (before #51526) there was no mutation and because this is unexpected and may lead to data races - it is bad behaviour to mutate original object when you just want a copy of it.
This PR fixes the issue.
Without the fix the tests I've added are failing because when comparison is done original object is not the same:
```
converter_test.go:154: Object changed, diff:
object.Object[items]:
a: []interface {}{}
b: <nil>
converter_test.go:154: Object changed, diff:
object.Object[items]:
a: []interface {}{map[string]interface {}{"kind":"Pod"}}
b: <nil>
```
However the underlying issue is not fixed here - `UnstructuredContent()` is brittle and dangerous. Method name does not imply that it mutates data when you call it. And godoc does not mention that either:
509df603b1/staging/src/k8s.io/apimachinery/pkg/runtime/interfaces.go (L233-L249)
Something needs to be done about it IMO.
Also `UnstructuredContent()` implementation in `UnstructuredList` does not implement the behaviour required by godoc in `runtime.Unstructured`.
**Release note**:
```release-note
NONE
```
/kind bug
/sig api-machinery
/assign @sttts
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Refactor `reconcileAutoscaler` method in hpa
**What this PR does / why we need it**:
There have been a couple of recent bugs in the "normalizing" part of the
`reconcileAutoscaler` method. This part of the code base is responsible
for, among other things, taking the suggested desired replicas based on
the metrics, ensuring it conforms to certain conditions, and updating it
if it does not. Isolate the part that converts the desired replicas
based on a given set of rules into its own function.
We are refactoring this part of the code base to make the logic simpler
and to make it easier to write unit tests.
**Which issue this PR fixes**:
Fixes#53728
**Release note**:
```release-note
NONE
```
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Allow constructing spdy executor from existing transports
If you already have an existing transport, it is not always possible to reconstruct a client config from it.
Allow constructing a spdy executor, given a connection/upgrade transport
```release-note
NONE
```
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add GRS, RAGRS storage account type support for azure disk
**What this PR does / why we need it**:
add Standard_GRS, Standard_RAGRS storage account type support for azure disk, and Standard_ZRS, Premium_GRS are not supported for azure disk 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#55774
**Special notes for your reviewer**:
**Release note**:
```
add Standard_GRS, Standard_RAGRS support for azure disk
```
/sig azure
@rootfs @brendanburns
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include error message for volumeManager during attach and mount
**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#55609
**Special notes for your reviewer**:
/assign @jsafrane @jingxu97
**Release note**:
```release-note
None
```
Automatic merge from submit-queue (batch tested with PRs 55963, 55790, 55670, 55931). 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>.
admission/webhook: move webhook initializer into plugin
Follow-up of https://github.com/kubernetes/kubernetes/pull/55132.
Non-generic plugin intitializers should go into the admission plugin itself. No need leak that into the generic apiserver. Keeping them contained in the webhook package makes it easier (it was already possible) for extension apiservers to provide one, but we don't need to leak it into the generic plugin initializer.
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Unit tests for Azure service session affinity
**What this PR does / why we need it**: We added session affinity support in the Azure load balancer in commit 8b50b83067. This PR adds unit tests for this behaviour.
**Which issue this PR fixes**: None
**Special notes for your reviewer**: None
**Release note**:
```release-note
NONE
```
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Checking Cinder disk when tickers are delivered
Cinder's WaitForAttach() runs probeAttachedVolume() 2 times per
second(L243 and L247), that triggers SCSI rescan and generates many udev "change"
events.
**Release note**:
```release-note
NONE
```
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Master now supports staged upgrades.
It will wait until specifically told to upgrade with an action unless the configuration option require-manual-upgrade is false and then master nodes will upgrade immediately.
**What this PR does / why we need it**:
This update alters the kubernetes-master upgrade path for juju charms. It makes the master act like the worker in that it blocks the upgrade until each unit is specifically requested to update.
**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**:
PR for tests coming momentarily to juju-solutions/kubernetes-jenkins
**Release note**:
```release-note
Upgrading the kubernetes-master units now results in staged upgrades just like the kubernetes-worker nodes. Use the upgrade action in order to continue the upgrade process on each unit such as `juju run-action kubernetes-master/0 upgrade`
```
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Unstructured cleanups
**What this PR does / why we need it**:
Cleanups for `Unstructured`/`UnstructuredList` extracted from #55297.
**Release note**:
```release-note
NONE
```
/sig api-machinery
/kind enhancement
/assign @sttts
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Bump Heapster version to 1.5.0-beta.1
**What this PR does / why we need it**:
Bumps Heapster version to 1.5.0-beta.1
**Which issue(s) this PR fixes**:
Fixes#54962
**Special notes for your reviewer**:
```release-note
NONE
```
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Fix representation of the pv's capacity which provisioned by glusterfs
**What this PR does / why we need it**:
This PR fixes representation of the pv's capacity which provisioned by glusterfs.
Gluster's volume size is calculated in GB, and than this value is setted as GiB for pv's storage capacity.
**Which issue(s) this PR fixes**:
Fixes#55937
**Special notes for your reviewer**:
**Release note**:
```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 kawych to cluster-monitoring deployment owners
**What this PR does / why we need it**:
Add kawych to cluster-monitoring deployment owners
```release-note
NONE
```
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Using ipset doing SNAT and packet filter in IPVS kube-proxy
**What this PR does / why we need it**:
Try ipset in ipvs proxy mode.
**Which issue this PR fixes**:
fixes#54203
xref: #53393, #53775
**Special notes for your reviewer**:
**Release note**:
```release-note
Using ipset doing SNAT and packet filtering in IPVS kube-proxy
```
/sig network
/area kube-proxy
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NetworkPolicy e2e: named port egress test
**What this PR does / why we need it**:
Add an e2e NetworkPolicy test that ensures that an egress rule that specifies a named port properly applies to egress traffic.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#52040
**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.
Also remove error messages that depended on ObjectKinds() - future
changes will potentially remove this interface and the replacements here
are equivalent.
Delays the error until the first call and then preserves it for others.
More closely matches the intent of the Object() calls. Loaders are now
lazy and don't need to return errors directly.
Sets the stage for collapsing unstructured and structured builders
together.
itowlson