Add wiki-farm update script

roles/services/wiki/tasks/main.yml

@@ -77,3 +77,8 @@
     enabled: yes
     state: restarted
   when: php_config.changed
+
+- name: Deploy wiki-farm update maintenance script
+  template:
+    src: wiki_update.sh.j2
+    dest: "/home/{{ ansible_user }}/.local/bin/wiki_update.sh"

roles/services/wiki/templates/LocalSettings.php.j2

@@ -3,6 +3,10 @@ if ( !defined( 'MEDIAWIKI' ) ) {
 	exit;
 }
 
+if ( !isset( $_SERVER['REQUEST_URI'] ) ) {
+	$_SERVER['REQUEST_URI'] = $argv;
+}
+
 $callingurl = strtolower( $_SERVER['REQUEST_URI'] ); // get the calling url
 if ( strpos( $callingurl, '/{{ wiki_names[0] }}' )  === 0 ) {
         require_once 'LocalSettings_{{ wiki_names[0] }}.php';

roles/services/wiki/templates/wiki_update.sh.j2

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+cd /usr/share/webapps/mediawiki
+
+maintenance/update.php "/{{ wiki_names[0] }}"
+
+{%- for extra_wiki in wiki_names[1:] %}
+maintenance/update.php "/{{ extra_wiki }}"
+{% endfor %}