Merge pull request #64304 from Random-Liu/fix-log-rotation-flag

Automatic merge from submit-queue (batch tested with PRs 62984, 64304). 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 alpha feature warning for log rotation flags.

CRI container log rotation is beta now.

@yujuhong /cc @mtaufen @kubernetes/sig-node-pr-reviews 
Signed-off-by: Lantao Liu <lantaol@google.com>

**Release note**:

```release-note
none
```
This commit is contained in:
Kubernetes Submit Queue 2018-05-26 03:42:06 -07:00 committed by GitHub
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@ -539,8 +539,8 @@ func AddKubeletConfigFlags(mainfs *pflag.FlagSet, c *kubeletconfig.KubeletConfig
fs.BoolVar(&c.MakeIPTablesUtilChains, "make-iptables-util-chains", c.MakeIPTablesUtilChains, "If true, kubelet will ensure iptables utility rules are present on host.")
fs.Int32Var(&c.IPTablesMasqueradeBit, "iptables-masquerade-bit", c.IPTablesMasqueradeBit, "The bit of the fwmark space to mark packets for SNAT. Must be within the range [0, 31]. Please match this parameter with corresponding parameter in kube-proxy.")
fs.Int32Var(&c.IPTablesDropBit, "iptables-drop-bit", c.IPTablesDropBit, "The bit of the fwmark space to mark packets for dropping. Must be within the range [0, 31].")
fs.StringVar(&c.ContainerLogMaxSize, "container-log-max-size", c.ContainerLogMaxSize, "<Warning: Alpha feature> Set the maximum size (e.g. 10Mi) of container log file before it is rotated. This flag can only be used with --container-runtime=remote.")
fs.Int32Var(&c.ContainerLogMaxFiles, "container-log-max-files", c.ContainerLogMaxFiles, "<Warning: Alpha feature> Set the maximum number of container log files that can be present for a container. The number must be >= 2. This flag can only be used with --container-runtime=remote.")
fs.StringVar(&c.ContainerLogMaxSize, "container-log-max-size", c.ContainerLogMaxSize, "<Warning: Beta feature> Set the maximum size (e.g. 10Mi) of container log file before it is rotated. This flag can only be used with --container-runtime=remote.")
fs.Int32Var(&c.ContainerLogMaxFiles, "container-log-max-files", c.ContainerLogMaxFiles, "<Warning: Beta feature> Set the maximum number of container log files that can be present for a container. The number must be >= 2. This flag can only be used with --container-runtime=remote.")
// Flags intended for testing, not recommended used in production environments.
fs.Int64Var(&c.MaxOpenFiles, "max-open-files", c.MaxOpenFiles, "Number of files that can be opened by Kubelet process.")