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Implement NodeStage and NodeUnstage for rbd

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in NodeStage RPC call  we  have to map the
device to the node plugin and make  sure  the
the device will be mounted to  the global path

in  nodeUnstage request unmount the device from
global path and unmap the device

if the volume mode is block  we will be creating
a file inside a stageTargetPath  and it will be
considered  as the global path

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2019-07-03 15:32:36 +05:30
committed by mergify[bot]
parent 7d8f465746
commit f4c80dec9a
20 changed files with 485 additions and 289 deletions
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8
pkg/rbd/rbd_util.go
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@ -90,16 +90,16 @@ type rbdSnapshot struct {
}
var (
// serializes operations based on "<rbd pool>/<rbd image>" as key
attachdetachLocker = util.NewIDLocker()
// serializes operations based on "volume name" as key
volumeNameLocker = util.NewIDLocker()
// serializes operations based on "snapshot name" as key
snapshotNameLocker = util.NewIDLocker()
// serializes operations based on "mount target path" as key
targetPathLocker = util.NewIDLocker()
// serializes delete operations on legacy volumes
legacyVolumeIDLocker = util.NewIDLocker()
// serializes operations based on "mount staging path" as key
nodeVolumeIDLocker = util.NewIDLocker()
// serializes operations based on "mount target path" as key
targetPathLocker = util.NewIDLocker()
supportedFeatures = sets.NewString("layering")
)