Added mastodon to disc space cleanup script

roles/sys-ctl-cln-disc-space/templates/script.sh.j2

@@ -39,6 +39,18 @@ if [ "$force_freeing" = true ]; then
       docker exec -u www-data $nextcloud_application_container /var/www/html/occ versions:cleanup || exit 6
     fi
 
+    # Mastodon cleanup (remote media cache)
+    mastodon_application_container="{{ applications | get_app_conf('web-app-mastodon', 'docker.services.mastodon.name') }}"
+    mastodon_cleanup_days="1"
+
+    if [ -n "$mastodon_application_container" ] && docker ps -a --format '{% raw %}{{.Names}}{% endraw %}' | grep -qw "$mastodon_application_container"; then
+      echo "Cleaning up Mastodon media cache (older than ${mastodon_cleanup_days} days)" &&
+      docker exec -u root "$mastodon_application_container" bash -lc "bin/tootctl media remove --days=${mastodon_cleanup_days}" || exit 8
+
+      # Optional: additionally remove local thumbnail/cache files older than X days
+      # Warning: these will be regenerated when accessed, which may cause extra CPU/I/O load
+      # docker exec -u root "$mastodon_application_container" bash -lc "find /mastodon/public/system/cache -type f -mtime +${mastodon_cleanup_days} -delete" || exit 9
+    fi
   fi
 
   if command -v pacman >/dev/null 2>&1 ; then