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Merge pull request #52524 from karataliu/ccm_clustername

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Automatic merge from submit-queue (batch tested with PRs 52486, 52588, 52524). 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 cluster-name option for cloud controller manager

**What this PR does / why we need it**:
`cluster-name` is used by servicecontroller and routecontroller, for controller-manager, we have a parameter to set it, but for cloud-controller-manager, it will always be of default value 'kubernetes'.

An example of impact is Azure's loadbalancer, the loadbalancer resource created will always have the name 'kubernetes', while it used to be the cluster name set via controller manger's option.

**Which issue this PR fixes**
Fixes #52522

**Special notes for your reviewer**:

**Release note**:
```release-note
```
This commit is contained in:
Kubernetes Submit Queue 2017-09-16 06:34:27 -07:00 committed by GitHub
commit 3899491d2b
1 changed files with 1 additions and 0 deletions
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cmd/cloud-controller-manager/app/options/options.go
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@ -86,6 +86,7 @@ func (s *CloudControllerManagerServer) AddFlags(fs *pflag.FlagSet) {
fs.BoolVar(&s.EnableProfiling, "profiling", true, "Enable profiling via web interface host:port/debug/pprof/.")
fs.BoolVar(&s.EnableContentionProfiling, "contention-profiling", false, "Enable lock contention profiling, if profiling is enabled.")
fs.StringVar(&s.ClusterCIDR, "cluster-cidr", s.ClusterCIDR, "CIDR Range for Pods in cluster.")
fs.StringVar(&s.ClusterName, "cluster-name", s.ClusterName, "The instance prefix for the cluster.")
fs.BoolVar(&s.AllocateNodeCIDRs, "allocate-node-cidrs", false, "Should CIDRs for Pods be allocated and set on the cloud provider.")
fs.StringVar(&s.Master, "master", s.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig).")
fs.StringVar(&s.Kubeconfig, "kubeconfig", s.Kubeconfig, "Path to kubeconfig file with authorization and master location information.")