Role service-fastd: configure systemd service unit overrides instead of replacing the whole file

roles/service-fastd/tasks/main.yml

@@ -12,10 +12,18 @@
     name: fastd
     masked: yes
 
-- name: write systemd unit fastd@.service
+- name: create systemd override dir for fastd@.service
+  file:
+    path: /etc/systemd/system/fastd@.service.d
+    state: directory
+    owner: root
+    group: root
+    mode: 0755
+
+- name: configure systemd unit overrides
   template:
-    src: fastd@.service.j2
+    src: fastd@_service_overrides.j2
-    dest: /etc/systemd/system/fastd@.service
+    dest: /etc/systemd/system/fastd@.service.d/override.conf
     owner: root
     group: root
     mode: 0644

roles/service-fastd/templates/fastd@_service_overrides.j2

@@ -1,11 +1,5 @@
 [Unit]
 Description=Fast and Secure Tunnelling Daemon (connection %i)
-After=network.target
 
 [Service]
-Type=notify
 ExecStart=/usr/bin/fastd --syslog-level info --syslog-ident fastd@%i -c /etc/fastd/%i/fastd.conf
-ExecReload=/bin/kill -HUP $MAINPID
-
-[Install]
-WantedBy=multi-user.target