[NC] Add FORCED_LANGUAGE setting

This has been requested by schools.

dd-apps/docker/nextcloud/nc-setup.sh

@@ -47,7 +47,8 @@ cat > "${STATIC_CFG}" <<EOF
 /** DD-customised static settings
   */
 \$CONFIG = array(
-  'default_language' => 'ca',
+  'default_language' => '${FORCED_LANGUAGE}',
+  'force_language' => '${FORCED_LANGUAGE}',
   'skeletondirectory' => '',
   'theme' => 'dd',
   'allow_local_remote_servers' => true,

dd-apps/docker/nextcloud/nextcloud.yml

@@ -79,6 +79,7 @@ services:
       # Operator preferences
       - EXTRA_PLUGINS_ENABLE=${NEXTCLOUD_PLUGINS_ENABLE:-}
       - EXTRA_PLUGINS_DISABLE=${NEXTCLOUD_PLUGINS_DISABLE:-}
+      - FORCED_LANGUAGE=${FORCED_LANGUAGE:-ca}
     networks:
       - dd_net
 

dd.conf.sample

@@ -122,7 +122,10 @@ NEXTCLOUD_POSTGRES_PASSWORD=N3xtcl0ud
 ### These should be available from https://apps.nextcloud.com/
 ### Example: NEXTCLOUD_PLUGINS_ENABLE=cospend,cookbook
 #NEXTCLOUD_PLUGINS_ENABLE=
-#NEXTCLOUD_PLUGINS_DISABLE
+#NEXTCLOUD_PLUGINS_DISABLE=
+#
+### This language will be forced (currently only Nextcloud)
+#FORCED_LANGUAGE=ca
 
 ## WORDPRESS
 ##=============================================================================