This PR adds support to allow the CSI driver to pick up a node matching the topology specified in the storage class. Admin can specify allowedTopologies in the StorageClass to specify the nodes where the zfs pools are setup
```yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: openebs-zfspv
allowVolumeExpansion: true
parameters:
blocksize: "4k"
compression: "on"
dedup: "on"
thinprovision: "yes"
poolname: "zfspv-pool"
provisioner: zfs-localpv
volumeBindingMode: WaitForFirstConsumer
allowedTopologies:
- matchLabelExpressions:
- key: kubernetes.io/hostname
values:
- gke-zfspv-pawan-default-pool-c8929518-cgd4
- gke-zfspv-pawan-default-pool-c8929518-dxzc
```
Note: This PR picks up the first node from the list of nodes available.
Signed-off-by: Pawan <pawan@mayadata.io>
provisioning and deprovisioning of
the volumes on the node where zfs pool
has already been setup. Pool name and the volume
parameters has to be given in storage class
which will be used to provision the volume.
Signed-off-by: Pawan <pawan@mayadata.io>
