[FEATURE]: Allow FQDN for the endpoint in CSI-PowerStore

[AkshaySainiDell]

Describe the solution you'd like
I'm with a customer trying deploy the CSI Driver for PowerStore. We configure the endpoint with a DNS name and I have the error :

Read CSI_LOG_LEVEL from log configuration file, level: debug
{"level":"info","msg":"updating array info","time":"2023-03-16T13:07:00.661953233Z"}
{"level":"fatal","msg":"couldn't initialize arrays in node service: can't get config for arrays: can't get ips from endpoint: https://<domain-name>.com/api/rest","time":"2023-03-16T13:07:00.662665873Z"}

From what I see here : https://github.com/dell/csi-powerstore/blob/64be9636f7a0a525ec656bf43467da95fb922b37/pkg/array/array.go#L230 it looks like we are asking for an IP address.
Why is that ?

It is a bit of a concern for several reasons :

• A certificate is almost always issue against a DNS name(s) and rarely on an IP address. And I don't think we can have a trusted certificate by a CA on a private IP
• If we have to connect through a load-balancer, or if the IP of the PS changes, it can be an issue to use an IP over an FQDN

[csmbot]

@AkshaySainiDell: Thank you for submitting this issue!

The issue is currently awaiting triage. Please make sure you have given us as much context as possible.

If the maintainers determine this is a relevant issue, they will remove the needs-triage label and assign an appropriate priority label.

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[adarsh-dell]

The necessary modifications for this feature have been incorporated into the main branch. Starting from version 2.7.0, the PowerStore driver will support it.