zpool and zfs command execution using CSP

[mittachaitu]

Describe the problem/challenge you have High-level operators should be able to perform zpool/zfs get zpool/zfs command execution to use the output for their services.

Describe the solution you'd like CSP can have a separate field to take command as an input. After finding command on field pool-mgmt controller should execute the command and set the output on the status if it succeeds.

Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]

Environment:

• OpenEBS version
• Kubernetes version (use kubectl version):
• Kubernetes installer & version:
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):

[mittachaitu]

https://github.com/openebs/openebs/pull/3116 OEP has been raised to address the issue.

[shubham14bajpai]

This was required for migrating the SPC to CSPC. Another approach was followed where pod/exec worked fine.