feat(shared): adding shared mount support ZFSPV volumes

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Applications who want to share a volume can use below storageclass
to make their volumes shared by multiple pods

```yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: openebs-zfspv
parameters:
  shared: "yes"
  fstype: "zfs"
  poolname: "zfspv-pool"
provisioner: zfs.csi.openebs.io
```

Now the provisioned volume using this storageclass can be used by multiple pods.
Here pods have to make sure of the data consistency and have to have locking mechanism.
One thing to note here is pods will be scheduled to the node where volume is present
so that all the pods can use the same volume as they can access it locally only.
This was we can avoid the NFS overhead and can get the optimal performance also.

Also fixed the log formatting in the GRPC log.

Signed-off-by: Pawan <pawan@mayadata.io>

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This commit is contained in:

Pawan 2020-06-26 12:38:09 +05:30 • committed by Kiran Mova

parent ac9d6d5729

commit 27065bf40a

11 changed files with 2774 additions and 1339 deletions

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deploy/operators/centos7/zfs-operator.yaml

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