Allow to set arguments to pass Arpwatch service

CHANGELOG.md

@@ -5,3 +5,4 @@
 * Install Arpwatch.
 * Ensure the service is in the desired state.
 * Allow to set the user that run Arpwatch.
+* Allow to set arguments to pass Arpwatch service.

README.md

@@ -20,6 +20,7 @@ Manage Arpwatch installation and configuration.
 * **arpwatch__service_name** : The service name to manage [default : `arpwatch`].
 * **arpwatch__conf_src** : Template used to provide configuration file [default : `../templates/etc/arpwatch.conf.j2`].
 * **arpwatch__conf_username** : Username that should run Arpwatch [default : `arpwatch`].
+* **arpwatch__conf_args** : Arguments to apply to Arpwatch [default : `-N -p`].
 
 ## Example Playbook
 
@@ -37,6 +38,7 @@ This role will :
 * Install needed packages to provide `arpwatch` service.
 * Manage `arpwatch` configuration (/etc/arpwatch.conf).
 * Allow to set the user that run Arpwatch.
+* Allow to set arguments to pass Arpwatch service.
 * Ensure `arpwatch` service is enabled and started.
 * Ensure to restart `arpwatch` service if configuration changed.
 

defaults/main.yml

@@ -63,5 +63,15 @@ arpwatch__conf_src: '../templates/etc/arpwatch.conf.j2'
 arpwatch__conf_username: 'arpwatch'
 
                                                                    # ]]]
+# .. envvar:: arpwatch__conf_args [[[.
+# Arguments to apply to Arpwatch.
+#
+# The value should be a string with all arguments separated by a whitespace.
+# See the manual for more informations.
+# ``-N -p``
+#   Default.
+arpwatch__conf_args: '-N -p'
+
+                                                                   # ]]]
 
                                                                    # ]]]

templates/etc/default/arpwatch.j2

@@ -3,7 +3,7 @@
 # Global options for arpwatch(8).
 
 # Debian: don't report bogons, don't use PROMISC.
-ARGS="-N -p"
+ARGS="{{ arpwatch__conf_args }}"
 
 # Debian: run as `{{ arpwatch__conf_username }}' user.  Empty this to run as root.
 RUNAS="{{ arpwatch__conf_username }}"