added timer, fixed /root typo

restic/files/backup.sh.jinja

@@ -42,5 +42,5 @@ restic backup \
   --verbose \
   {% if pillar.podman is defined %}{{ salt['cmd.run']('podman info -f "{{.Store.VolumePath}}"', runas=pillar.podman.user ) }} \{% endif %}
   /etc \
-  / root \
+  /root \
   /home

restic/files/restic-backup.service.jinja

@@ -0,0 +1,10 @@
+[Unit]
+Description=Run restic backup
+
+[Service]
+Type=oneshot
+User={{ pillar.restic.user }}
+ExecStart={{ salt['user.info'](pillar.restic.user).home }}/bin/backup.sh
+
+[Install]
+WantedBy=default.target

restic/files/restic-backup.timer.jinja

@@ -0,0 +1,10 @@
+[Unit]
+Description=Restic backup timer
+
+[Timer]
+OnCalendar={{ pillar.restic.OnCalendar }}
+RandomizedDelaySec=300
+Unit=restic-backup.service
+
+[Install]
+WantedBy=timers.target