Merge pull request #57993 from humblec/volume-metrics

Automatic merge from submit-queue (batch tested with PRs 57993, 58028). 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 volumemetrics for glusterfs plugin.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>



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

**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

```
This commit is contained in:
Kubernetes Submit Queue 2018-01-09 19:39:29 -08:00 committed by GitHub
commit 33134cb02c
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@ -172,10 +172,11 @@ func (plugin *glusterfsPlugin) newMounterInternal(spec *volume.Spec, ep *v1.Endp
source, readOnly := plugin.getGlusterVolumeSource(spec)
return &glusterfsMounter{
glusterfs: &glusterfs{
volName: spec.Name(),
mounter: mounter,
pod: pod,
plugin: plugin,
volName: spec.Name(),
mounter: mounter,
pod: pod,
plugin: plugin,
MetricsProvider: volume.NewMetricsStatFS(plugin.host.GetPodVolumeDir(pod.UID, strings.EscapeQualifiedNameForDisk(glusterfsPluginName), spec.Name())),
},
hosts: ep,
path: source.Path,
@ -190,10 +191,11 @@ func (plugin *glusterfsPlugin) NewUnmounter(volName string, podUID types.UID) (v
func (plugin *glusterfsPlugin) newUnmounterInternal(volName string, podUID types.UID, mounter mount.Interface) (volume.Unmounter, error) {
return &glusterfsUnmounter{&glusterfs{
volName: volName,
mounter: mounter,
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: podUID}},
plugin: plugin,
volName: volName,
mounter: mounter,
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: podUID}},
plugin: plugin,
MetricsProvider: volume.NewMetricsStatFS(plugin.host.GetPodVolumeDir(podUID, strings.EscapeQualifiedNameForDisk(glusterfsPluginName), volName)),
}}, nil
}
@ -211,7 +213,7 @@ type glusterfs struct {
pod *v1.Pod
mounter mount.Interface
plugin *glusterfsPlugin
volume.MetricsNil
volume.MetricsProvider
}
type glusterfsMounter struct {