fix

ansible/docker-compose.yml.j2

@@ -13,7 +13,7 @@ services:
       - ./nginx/cache:/etc/nginx/cache
       - ./nginx/log:/var/log/nginx
 {% for instance in instances %}
-  {{instance.name}}:
+  '{{instance.name}}':
     restart: always
     image: {{ jupyter_image }}
     volumes: