kubernetes/pkg/volume/flexvolume/mounter-defaults.go
Kubernetes Submit Queue d021db8204 Merge pull request #47503 from chakri-nelluri/flexcap
Automatic merge from submit-queue (batch tested with PRs 47878, 47503, 47857)

Remove controller node plugin driver dependency for non-attachable fl…

…ex volume drivers (Ex: NFS).

**What this PR does / why we need it**:
Removes requirement to install flex volume drivers on master node for non-attachable drivers likes NFS.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #47109


```release-note
Fixes issue w/Flex volume, introduced in 1.6.0, where drivers without an attacher would fail (node indefinitely waiting for attach). Drivers that don't implement attach should return `attach: false` on `init`.
```
2017-06-21 21:12:15 -07:00

57 lines
1.5 KiB
Go

/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package flexvolume
import (
"github.com/golang/glog"
"k8s.io/kubernetes/pkg/volume"
)
type mounterDefaults flexVolumeMounter
// SetUpAt is part of the volume.Mounter interface.
// This implementation relies on the attacher's device mount path and does a bind mount to dir.
func (f *mounterDefaults) SetUpAt(dir string, fsGroup *int64) error {
glog.Warning(logPrefix(f.plugin), "using default SetUpAt to ", dir)
src, err := f.plugin.getDeviceMountPath(f.spec)
if err != nil {
return err
}
if err := doMount(f.mounter, src, dir, "auto", []string{"bind"}); err != nil {
return err
}
return nil
}
// Returns the default volume attributes.
func (f *mounterDefaults) GetAttributes() volume.Attributes {
glog.V(5).Infof(logPrefix(f.plugin), "using default GetAttributes")
return volume.Attributes{
ReadOnly: f.readOnly,
Managed: !f.readOnly,
SupportsSELinux: true,
}
}
func (f *mounterDefaults) CanMount() error {
return nil
}