Merge pull request #60540 from m1093782566/ipvs-beta

Automatic merge from submit-queue (batch tested with PRs 58171, 58036, 60540). 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>.

Enable IPVS feature gateway by default since it's already beta

**What this PR does / why we need it**:

Per #60501, kubeadm init doesn't support the --feature-gates=SupportIPVSProxyMode=true flag anymore since IPVS is in beta and not alpha anymore. We should enable IPVS feature gateway by default to make kubeadm set up IPVS proxy properly.

**Which issue(s) this PR fixes**:
Fixes #60543

**Special notes for your reviewer**:

**Release note**:

```release-note
Enable IPVS feature gateway by default
```
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Kubernetes Submit Queue 2018-02-28 09:48:26 -08:00 committed by GitHub
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@ -299,7 +299,7 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
BlockVolume: {Default: false, PreRelease: utilfeature.Alpha},
StorageObjectInUseProtection: {Default: true, PreRelease: utilfeature.Beta},
ResourceLimitsPriorityFunction: {Default: false, PreRelease: utilfeature.Alpha},
SupportIPVSProxyMode: {Default: false, PreRelease: utilfeature.Beta},
SupportIPVSProxyMode: {Default: true, PreRelease: utilfeature.Beta},
SupportPodPidsLimit: {Default: false, PreRelease: utilfeature.Alpha},
HyperVContainer: {Default: false, PreRelease: utilfeature.Alpha},
NoDaemonSetScheduler: {Default: false, PreRelease: utilfeature.Alpha},