bind: extract systemd service file in a template

bind/tasks/main.yml

@@ -10,32 +10,15 @@
     replace: 'OPTIONS="-u bind -t {{ bind_chroot_root }}"'
 
 - name: Create systemd service
-  file:
-    path: "{{ bind_systemd_service_path }}"
+  template:
+    src: bind9.service.j2
+    dest: "{{ bind_systemd_service_path }}"
     owner: root
     group: root
     mode: "0644"
-    state: touch
-  register: create_bind_systemd
-
-- name: "Fill out systemd service"
-  blockinfile:
-    dest: "{{ bind_systemd_service_path }}"
-    block: |
-      [Unit]
-      Description=BIND Domain Name Server
-      Documentation=man:named(8)
-      After=network.target
-
-      [Service]
-      EnvironmentFile=-/etc/default/bind9
-      ExecStart=/usr/sbin/named -f $OPTIONS
-      ExecReload=/usr/sbin/rndc reload
-      ExecStop=/usr/sbin/rndc stop
-
-      [Install]
-      WantedBy=multi-user.target
-  when: create_bind_systemd | changed
+    force: yes
+    backup: yes
+  notify: restart bind
 
 - name: Create directories
   file:

bind/templates/bind9.service.j2

@@ -0,0 +1,15 @@
+# {{ ansible_managed }}
+
+[Unit]
+Description=BIND Domain Name Server
+Documentation=man:named(8)
+After=network.target
+
+[Service]
+EnvironmentFile=-/etc/default/bind9
+ExecStart=/usr/sbin/named -f $OPTIONS
+ExecReload=/usr/sbin/rndc reload
+ExecStop=/usr/sbin/rndc stop
+
+[Install]
+WantedBy=multi-user.target