[NOTICE] Operator yaml to be discontinued and replaced with helm as only way of installation

[Abhinandan-Purkait]

Describe the issue

• operator yaml way of installation for zfs-localpv was done before zfs-localpv had any helm charts.
• With the introduction of the helm chart for zfs-localpv, the operator yaml has now become redundant.
• Now that we have helm chart as a better way of installation and upgrade, maintaining the separate operator yaml is extra overhead.
• With the ci being overhauled and the tests made to work using the helm chart. There is no real use of the operator yaml in zfs-localpv repo.

Proposal

• Since helm chart being the standard for most k8s based projects, users are now used to the helm paradigm, so it should be the only way going forward.
• With chart repo now being archived, the operator yaml would not be available to users post Oct 30, ref: github announcement, ref: release notes
• Discontinue the operator yaml on zfs-localpv repo, ref

Survey

• It would be beneficial to know from the community, what are their use cases for using operator yaml?
• How operator yaml users perform upgrades?
• Should operator yaml continue to stay, if so where should it reside going forward, as openebs/charts repo would be archived post Oct 30, as mentioned above.

[Abhinandan-Purkait]

Generates, the operator-yaml from helm template #569

[Abhinandan-Purkait]

Since we are generating the operator yaml from helm templating now. I think we can leave this around for people who want it this way, with the caveat that the upgrade path will not be supported.