healthcheck:
      test:
        - "CMD"
        - "bash"
        - "-c"
        - "exec 3<>/dev/tcp/localhost/{{ container_port }} && echo -e 'GET /{{ container_healthcheck | default('') }} HTTP/1.1\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n' >&3 && cat <&3 | grep -q 'HTTP/1.1'"