Add support for annotations in StorageClasses

[morganchristiansson]

Summary

Add storageClass.classes.defaultClass

Fixes #86

• [x] Categorize the PR by setting a good title and adding one of the labels: kind:bug, kind:enhancement, kind:documentation, kind:change, kind:breaking, kind:dependency as they show up in the changelog
• [x] PR contains the label area:chart
• [x] PR contains the chart label, e.g. chart:kubernetes-zfs-provisioner
• [x] Variables are documented in the values.yaml using the format required by Helm-Docs.
• [x] Chart Version bumped if immediate release after merging is planned
• [x] I have run make chart-docs
• [x] Link this PR to related code release or other issues.

[morganchristiansson]

I'm unable to add labels to the issue. It should have: kind:enhancement area:provisioner area:chart chart:kubernetes-zfs-provisioner

[morganchristiansson]

I accepted all your changes and rebased them into 1 commit. Changes work as expected on deploying to my local cluster. kubectl get storageclass shows correct entry as default.

NAME                PROVISIONER            RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
hostpath            hostpath               Delete          Immediate           false                  4h2m
traktor (default)   pv.kubernetes.io/zfs   Delete          Immediate           false                  254d
puma                pv.kubernetes.io/zfs   Delete          Immediate           false                  254d

storageClass:
  create: true
  classes:
    - name: traktor
      hostName: morgan-server.lan
      parentDataset: traktor/kubernetes
      annotations:
        storageclass.kubernetes.io/is-default-class: "true"
      policy: "Delete"
      shareProperties: rw,no_root_squash
      type: "nfs"
      node: morgan-server
    - name: puma
      hostName: morgan-server.lan
      parentDataset: puma/kubernetes
      policy: "Delete"
      shareProperties: rw,no_root_squash
      type: "nfs"
      node: morgan-server

[ccremer]

Nice! Thanks, releasing soon