added restic repository state

restic/files/restic.automount.jinja

@@ -0,0 +1,8 @@
+[Unit]
+Description=Automount for restic repository
+
+[Automount]
+Where={{ pillar['restic']['repository']['mount'] }}
+
+[Install]
+WantedBy=multi-user.target

restic/files/restic.mount.jinja

@@ -0,0 +1,11 @@
+[Unit]
+Description=Mount the USB disk used as restic repository
+
+[Mount]
+What=/dev/disk/by-uuid/{{ pillar['restic']['repository']['disk_uuid'] }}
+Where={{ pillar['restic']['repository']['mount'] }}
+Type=auto
+Options=defaults
+
+[Install]
+WantedBy=multi-user.target

restic/repository.sls

@@ -0,0 +1,27 @@
+{% set escape_command = [ "systemd-escape -p", pillar['restic']['repository']['mount']]|join(" ") %}
+{% set unit_name = salt['cmd.shell'](escape_command) %}
+
+Create restic repository mount unit:
+  file.managed:
+    - name: /etc/systemd/system/{{ unit_name }}.mount
+    - source: salt://restic/files/restic.mount.jinja
+    - template: jinja
+    - user: root
+    - group: root
+    - mode: "0644"
+
+Create restic repository automount unit:
+  file.managed:
+    - name: /etc/systemd/system/{{ unit_name }}.automount
+    - source: salt://restic/files/restic.automount.jinja
+    - template: jinja
+    - user: root
+    - group: root
+    - mode: "0644"
+
+Run systemd daemon reload for repository:
+  cmd.run:
+    - name: systemctl daemon-reload
+    - onchanges:
+      - file: Create restic repository mount unit
+      - file: Create restic repository automount unit