tweak longhorn install

roles/k3s/handlers/main.yml

@@ -1,7 +1,7 @@
-- name: Restart multipathd
-  service:
-    name: multipathd
-    state: restarted
+# - name: Restart multipathd
+#   service:
+#     name: multipathd
+#     state: restarted
 
 - name: reboot
   reboot:

roles/k3s/tasks/main.yml

@@ -2,14 +2,24 @@
   apt:
     name:
       - open-iscsi # required by longhorn
-      - nfs-common # required for nfs support
-      - iptables # required for docker-in-docker workload support
+      - nfs-common # required by longhorn
+      - nfs-client # required by longhorn
+      - cryptsetup # required by longhorn
+      - dmsetup    # required by longhorn
+      - iptables   # required for docker-in-docker workload support
 
 # https://longhorn.io/kb/troubleshooting-volume-with-multipath/
-- name: Disable multipath (for longhorn volumes)
-  copy:
-    src: multipath.conf
-    dest: /etc/multipath.conf
-  notify: Restart multipathd
+# - name: Disable multipathd (for longhorn volumes)
+#   copy:
+#     src: multipath.conf
+#     dest: /etc/multipath.conf
+#   notify: Restart multipathd
+
+- name: Disable multipathd (for longhorn volumes)
+  systemd:
+    name: multipathd
+    state: stopped
+    enabled: no
+  ignore_errors: true # a node may not have multipathd installed
 
 - include_tasks: '{{ platform }}.yml'