democratic-csi: Initial deployment

Deploying _democratic-csi_ to manage PersistentVolumeClaim resources,
mapping them to iSCSI volumes on the Synology.

Eventually, all Longhorn-managed PVCs will be replaced with Synology
iSCSI volumes.  Getting rid of Longhorn should free up a lot of
resources and remove a point of failure from the cluster.

democratic-csi/driver-config-file.yaml

@@ -0,0 +1,93 @@
+driver: synology-iscsi
+httpConnection:
+  protocol: https
+  host: storage0.pyrocufflink.blue
+  port: 5001
+  username: democratic-csi
+  allowInsecure: true
+  # should be uniqe across all installs to the same nas
+  session: "democratic-csi"
+  serialize: true
+
+# Choose the DSM volume this driver operates on. The default value is /volume1.
+# synology:
+#   volume: /volume1
+
+iscsi:
+  targetPortal: "server[:port]"
+  # for multipath
+  targetPortals: [] # [ "server[:port]", "server[:port]", ... ]
+  # leave empty to omit usage of -I with iscsiadm
+  interface: ""
+  # can be whatever you would like
+  baseiqn: "iqn.2000-01.com.synology:csi."
+
+  # MUST ensure uniqueness
+  # full iqn limit is 223 bytes, plan accordingly
+  namePrefix: ""
+  nameSuffix: ""
+
+  # documented below are several blocks
+  # pick the option appropriate for you based on what your backing fs is and desired features
+  # you do not need to alter dev_attribs under normal circumstances but they may be altered in advanced use-cases
+  # These options can also be configured per storage-class:
+  # See https://github.com/democratic-csi/democratic-csi/blob/master/docs/storage-class-parameters.md
+  lunTemplate:
+    # can be static value or handlebars template
+    #description: "{{ parameters.[csi.storage.k8s.io/pvc/namespace] }}-{{ parameters.[csi.storage.k8s.io/pvc/name] }}"
+    
+    # btrfs thin provisioning
+    type: "BLUN"
+    # tpws = Hardware-assisted zeroing
+    # caw = Hardware-assisted locking
+    # 3pc = Hardware-assisted data transfer
+    # tpu = Space reclamation
+    # can_snapshot = Snapshot
+    #dev_attribs:
+    #- dev_attrib: emulate_tpws
+    #  enable: 1
+    #- dev_attrib: emulate_caw
+    #  enable: 1
+    #- dev_attrib: emulate_3pc
+    #  enable: 1
+    #- dev_attrib: emulate_tpu
+    #  enable: 0
+    #- dev_attrib: can_snapshot
+    #  enable: 1
+
+    # btfs thick provisioning
+    # only zeroing and locking supported
+    #type: "BLUN_THICK"
+    # tpws = Hardware-assisted zeroing
+    # caw = Hardware-assisted locking
+    #dev_attribs:
+    #- dev_attrib: emulate_tpws
+    #  enable: 1
+    #- dev_attrib: emulate_caw
+    #  enable: 1
+
+    # ext4 thinn provisioning UI sends everything with enabled=0
+    #type: "THIN"
+
+    # ext4 thin with advanced legacy features set
+    # can only alter tpu (all others are set as enabled=1)
+    #type: "ADV"
+    #dev_attribs:
+    #- dev_attrib: emulate_tpu
+    #  enable: 1
+
+    # ext4 thick
+    # can only alter caw
+    #type: "FILE"
+    #dev_attribs:
+    #- dev_attrib: emulate_caw
+    #  enable: 1
+
+  lunSnapshotTemplate:
+    is_locked: true
+    # https://kb.synology.com/en-me/DSM/tutorial/What_is_file_system_consistent_snapshot
+    is_app_consistent: true
+
+  targetTemplate:
+    auth_type: 0
+    max_sessions: 0