add waring msg

roles/install_keycloak/tasks/main.yml

@@ -4,6 +4,10 @@
      path: /var/local/keycloak
      state: directory
 
+- name: Warning
+  debug:
+    msg: This is a test server, do not use in production
+
 - name: Copy docker-compose.yml
   template:
     src: docker-compose.yml.j2