Bugfixes for Local Volume Provisioner

- Fixed an issue where storage class host directories were looped
through excessive target hosts
- Fixes examples in the LVP `README.md` to use nested dicts instead of a
list of dicts

inventory/sample/group_vars/k8s-cluster/addons.yml

@@ -21,17 +21,17 @@ metrics_server_enabled: false
 local_volume_provisioner_enabled: false
 # local_volume_provisioner_namespace: kube-system
 # local_volume_provisioner_storage_classes:
-#   - local-storage:
-#       host_dir: /mnt/disks
-#       mount_dir: /mnt/disks
-#   - fast-disks:
-#       host_dir: /mnt/fast-disks
-#       mount_dir: /mnt/fast-disks
-#       block_cleaner_command:
-#          - "/scripts/shred.sh"
-#          - "2"
-#       volume_mode: Filesystem
-#       fs_type: ext4
+#   local-storage:
+#     host_dir: /mnt/disks
+#     mount_dir: /mnt/disks
+#   fast-disks:
+#     host_dir: /mnt/fast-disks
+#     mount_dir: /mnt/fast-disks
+#     block_cleaner_command:
+#       - "/scripts/shred.sh"
+#       - "2"
+#     volume_mode: Filesystem
+#     fs_type: ext4
 
 # CephFS provisioner deployment
 cephfs_provisioner_enabled: false