added timer, fixed /root typo

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

restic/init.sls

@@ -9,7 +9,7 @@ Install restic packages:
       - restic
       - restic-bash-completion
 
-Copy backup script for {{ pillar.restic.user }}:
+Create backup script for {{ pillar.restic.user }}:
   file.managed:
     - name: {{ salt['user.info'](pillar.restic.user).home }}/bin/backup.sh
     - source: salt://restic/files/backup.sh.jinja
@@ -17,3 +17,35 @@ Copy backup script for {{ pillar.restic.user }}:
     - user: {{ pillar.restic.user }}
     - group: root
     - mode: "0740"
+
+Create the restic backup service unit:
+  file.managed:
+    - name: /etc/systemd/system/restic-backup.service
+    - source: salt://restic/files/restic-backup.service.jinja
+    - template: jinja
+    - user: root
+    - group: root
+    - mode: "0644"
+
+Create the restic backup timer:
+  file.managed:
+    - name: /etc/systemd/system/restic-backup.timer
+    - source: salt://restic/files/restic-backup.timer.jinja
+    - template: jinja
+    - user: root
+    - group: root
+    - mode: "0644"
+
+Run systemctl daemon reload for restic:
+  cmd.run:
+    - name: systemctl daemon-reload
+    - onchanges:
+      - file: Create the restic backup service unit
+      - file: Create the restic backup timer
+
+Start the restic backup timer:
+  service.running:
+    - name: restic-backup.timer
+    - enable: True
+    - onchanges:
+      - cmd: Run systemctl daemon reload for restic