Remove hardcoded value of PVM instance id(Service instance ID) for node and controller plugin deployment files about ibm-powervs-block-csi-driver

[Madhan-SWE]

Update:

• Explored CSI Driver basics
• Deployed PowerVS CSI Driver in a single node Kubernetes cluster and fixed deployment issues
• Passed the hostname of the pod from the deployment file and got service instance id by using the host name
• The service instance id was removed from the deployment file, but getting service instance id using host name has limitation that 2 service instances cannot have VMs of same name
• Working on alternate fixes using node labels

[Madhan-SWE]

/assign

[Madhan-SWE]

Updates:

• Explored EBS CSI Driver code and added meta service for getting the metadata information about the node
• Explored RBAC in Kubernetes and setup service account, cluster role and cluster role binding for node plugin
• Fixed the issue by collecting service instance id from node labels
• PR is submitted