diff --git a/playbooks/stop_containers.yaml b/playbooks/stop_containers.yaml
index 831b719..f2956ba 100644
--- a/playbooks/stop_containers.yaml
+++ b/playbooks/stop_containers.yaml
@@ -1,5 +1,16 @@
 ---
+
+- name: Add elements to a list
+  set_fact:
+    docker_containers: "{{ docker_containers | default([]) + [item] }}"
+  loop:
+    - element1
+    - element2
+    - element3
+- debug:
+    msg: "{{ docker_containers }}"
 - name: Stop mailu containers 
   command: "docker stop kestra-kestra-1 kestra-postgres-1 authentik-postgresql-1 authentik-worker-1 authentik-server-1 authentik-redis-1 gitlab semaphore-db-1 semaphore-app-1 nginx-app-1 heimdall mailu2-admin-1 mailu2-antispam-1 mailu2-antivirus-1 mailu2-fetchmail-1 mailu2-front-1 mailu2-imap-1 mailu2-oletools-1 mailu2-redis-1 mailu2-resolver-1 mailu2-smtp-1 mailu2-webdav-1 mailu2-webmail-1 HomeAssistant mosquitto-mosquitto-1 webhub-web-1"
   become: true
-  ignore_errors: true
\ No newline at end of file
+  ignore_errors: true
+  
\ No newline at end of file