added autorestic units.

autorestic-backup.service

@@ -0,0 +1,7 @@
+[Unit]
+Description=Autorestic backup service
+[Service]
+Type=oneshot
+ExecStart=autorestic backup --verbose --all
+ExecStartPost=autorestic forget --verbose --all
+WorkingDirectory=/srv/backups/autorestic

autorestic-backup.timer

@@ -0,0 +1,7 @@
+[Unit]
+Description=Backup with autorestic daily
+[Timer]
+OnCalendar="*-*-* 03:*:*"
+Persistent=true
+[Install]
+WantedBy=timers.target

autorestic-prune.service

@@ -0,0 +1,6 @@
+[Unit]
+Description=Autorestic backup service (data pruning)
+[Service]
+Type=oneshot
+ExecStart=autorestic forget --verbose --all --prune
+WorkingDirectory=/srv/backups/autorestic/

autorestic-prune.timer

@@ -0,0 +1,7 @@
+[Unit]
+Description=Prune data from the restic repository monthly
+[Timer]
+OnCalendar=monthly
+Persistent=true
+[Install]
+WantedBy=timers.target