Use template instead

ansible/roles/common/tasks/main.yml

@@ -18,21 +18,14 @@
 
 ---
 - name: Create file for sysctl rule to disable IPv6 (if required)
-  file:
-    path: /etc/sysctl.d/99-fuss-disable-ipv6.conf
-    state: file
+  template:
+    src: 99-fuss-disable-ipv6.conf
+    dest: /etc/sysctl.d/99-fuss-disable-ipv6.conf
     owner: root
     group: root
     mode: '0644'
   when: disable_ipv6 is defined and disable_ipv6
 
-- name: Add a line in sysctl file to disable IPv6 (if required)
-  lineinfile:
-    path: /etc/sysctl.d/99-fuss-disable-ipv6.conf
-    line: 'net.ipv6.conf.all.disable_ipv6 = 1'
-    state: present
-  when: disable_ipv6 is defined and disable_ipv6
-
 - name: Clean package list
   debug:
   with_lines: