services:
  node-agent:
    environment:
      - NODE_NAME=vps
      - CHECK_INTERVAL=60
    # host network mode: node-agent on VPS shares the host's network namespace
    # so that localhost:18180 resolves to the control-plane's exposed port.
    # Without this, localhost inside the container is the container's own loopback
    # and the _check_control_plane_health() probe would always fail.
    network_mode: host