nextcloud: Back up Nextcloud with Restic

Now that the database is hosted externally, we don't have to worry about
backing it up specifically.  Restic only backs up the data on the
filesystem.

group_vars/nextcloud.yml

@@ -15,3 +15,8 @@ nextcloud_smtp:
 dnf_automatic_exclude: nextcloud
 
 nextcloud_db_host: postgresql.pyrocufflink.blue;sslcert=/etc/nextcloud/postgresql.cer;sslkey=/etc/nextcloud/postgresql.key;sslrootcert=system;sslmode=verify-full
+
+restic_include:
+- /var/lib/nextcloud
+restic_exclude:
+- /var/lib/nextcloud/data/*/files_trashbin

hosts

@@ -164,6 +164,7 @@ samba-dc
 file0.pyrocufflink.blue
 
 [restic]
+cloud0.pyrocufflink.blue
 
 [rw-root]