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Merge pull request #52870 from jennybuckley/default-service-cluster-ip-range

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Automatic merge from submit-queue (batch tested with PRs 53000, 52870, 53569). 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>.

Allow running kube-apiserver without specifing service-cluster-ip-range

**What this PR does / why we need it**:
The flag service-cluster-ip-range has a default value which is not used by kube-apiserver, causing errors when people rely on that default value.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #52695

**Special notes for your reviewer**:

**Release note**:

```release-note
Fixed a bug which is causes kube-apiserver to not run without specifying service-cluster-ip-range
```
This commit is contained in:
Kubernetes Submit Queue 2017-10-26 14:18:25 -07:00 committed by GitHub
commit f2c0a66e80
1 changed files with 2 additions and 1 deletions
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3
cmd/kube-apiserver/app/server.go
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@ -616,10 +616,11 @@ func defaultOptions(s *options.ServerRunOptions) error {
if err := kubeoptions.DefaultAdvertiseAddress(s.GenericServerRunOptions, s.InsecureServing); err != nil {
return err
}
_, apiServerServiceIP, err := master.DefaultServiceIPRange(s.ServiceClusterIPRange)
serviceIPRange, apiServerServiceIP, err := master.DefaultServiceIPRange(s.ServiceClusterIPRange)
if err != nil {
return fmt.Errorf("error determining service IP ranges: %v", err)
}
s.ServiceClusterIPRange = serviceIPRange
if err := s.SecureServing.MaybeDefaultWithSelfSignedCerts(s.GenericServerRunOptions.AdvertiseAddress.String(), []string{"kubernetes.default.svc", "kubernetes.default", "kubernetes"}, []net.IP{apiServerServiceIP}); err != nil {
return fmt.Errorf("error creating self-signed certificates: %v", err)
}