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Merge pull request #61000 from dims/split-host-name-when-dhcp-domain-is-present-in-host-name

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Automatic merge from submit-queue. 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>.

Split out the hostname when default dhcp_domain is used in nova.conf

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

When /etc/nova/nova.conf does not have specify dhcp_domain to empty
string, a default string of '.novalocal' is returned by the meta data
service. So we need to just split the string and pick the first one
in the array.

```
$ curl http://169.254.169.254/latest/meta-data/hostname
testvm-1.novalocal
$ curl http://169.254.169.254/latest/meta-data/public-hostname
testvm-1.novalocal
$ curl http://169.254.169.254/latest/meta-data/local-hostname
testvm-1.novalocal
```

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2018-03-27 20:28:02 -07:00 committed by GitHub
commit d7ec46c5de
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1 changed files with 2 additions and 1 deletions
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3
pkg/cloudprovider/providers/openstack/openstack_instances.go
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@ -20,6 +20,7 @@ import (
"context"
"fmt"
"regexp"
"strings"
"github.com/golang/glog"
"github.com/gophercloud/gophercloud"
@ -60,7 +61,7 @@ func (i *Instances) CurrentNodeName(ctx context.Context, hostname string) (types
if err != nil {
return "", err
}
return types.NodeName(md.Hostname), nil
return types.NodeName(strings.Split(md.Hostname, ".")[0]), nil
}
// AddSSHKeyToAllInstances is not implemented for OpenStack