Automatic merge from submit-queue (batch tested with PRs 51113, 46597, 50397, 51052, 51166)
implement proposal 34058: hostPath volume type
**What this PR does / why we need it**:
implement proposal #34058
**Which issue this PR fixes** : fixes#46549
**Special notes for your reviewer**:
cc @thockin @luxas @euank PTAL
Automatic merge from submit-queue
Cleanup DaemonSet templateGeneration
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#49336
**Special notes for your reviewer**:
/cc @janetkuo @foxish
~~Depends on #49071~~ (Merged)
**Release note**:
```release-note
None
```
Automatic merge from submit-queue
fix apps DeploymentSpec conversion issue
**What this PR does / why we need it**:
When working on #49645, I found current conversion for `v1.PodTemplateSpec` to `api.PodTemplateSpec` did not work properly. It should function as [L244-L246](https://github.com/kubernetes/kubernetes/blob/master/pkg/apis/apps/v1beta1/conversion.go#L244-L246).
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
/cc @janetkuo
**Release note**:
```release-note
fix apps DeploymentSpec conversion issue
```
Automatic merge from submit-queue
Added field CollisionCount to StatefulSetStatus
**What this PR does / why we need it**:
This PR added a new field `CollisionCount` into `StatefulSetStatus`, similarly in terms of both name and semantics to the existing `CollisionCount` field in `DaemonSetStatus`. The field will be used for collision avoidance when the `StatefulSet` controller creates name for the newest ControllerRevision, which will be done in another PR.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: #49909.
**Special notes for your reviewer**:
A second PR will include logic that actually uses the field for collision avoidance.
**Release note**:
```release-note
Added field CollisionCount to StatefulSetStatus in both apps/v1beta1 and apps/v1beta2
```
Automatic merge from submit-queue
Change default update strategy to rolling update
Fixes https://github.com/kubernetes/kubernetes/issues/49604
Change default update strategy to rolling update for daemonset and statefulset in v1beta2
cc @kubernetes/sig-apps-pr-reviews @lukaszo @kargakis
**Release note**:
```release-note
Make rolling update the default update strategy for v1beta2.DaemonSet and v1beta2.StatefulSet
```
Automatic merge from submit-queue
Increase default value of apps/v1beta2 DeploymentSpec.RevisionHistoryLimit to 10
**What this PR does / why we need it**:
All controllers that use the `RevisionHistoryLimit` field have a default value of 10 for the field, except for `Deployment`, which has a default of 2. We should increase it to 10 for consistency on its default value across controllers.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#49913
**Special notes for your reviewer**:
/cc @janetkuo @foxish @liyinan926
**Release note**:
```release-note
Increase default value of apps/v1beta2 DeploymentSpec.RevisionHistoryLimit to 10
```
Automatic merge from submit-queue (batch tested with PRs 50000, 49954, 49943, 50018, 49607)
change apps/v1beta2 StatefulSet observedGeneration from a pointer to an int for consistency
**What this PR does / why we need it**:
change the StatefulSet observedGeneration from a pointer to an int for consistency
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#49623
xref #49135
**Special notes for your reviewer**:
/cc @janetkuo @foxish @kow3ns
**Release note**:
```release-note
change apps/v1beta2 StatefulSet observedGeneration (optional field) from a pointer to an int for consistency
```
Automatic merge from submit-queue (batch tested with PRs 50029, 48517, 49739, 49866, 49782)
Update generated deepcopy code
**What this PR does / why we need it**:
In generated deepcopy code, the method names in comments do not match the real method names.
**Which issue this PR fixes**: fixes#49755
**Special notes for your reviewer**:
/assign @sttts @caesarxuchao
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
fix invalid issue link in api conversion
**What this PR does / why we need it**:
When working on #49336, found invalid link `https://github.com/kubernetes/kubernetextensionsssues/39865`.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
cc @janetkuo
**Release note**:
```release-note
None
```
