version: "3"
services:
  mailserver:
    container_name: '${CONTAINER_NAME}'
    image: ${CONTAINER_IMAGE}
    entrypoint: bootnode
    restart: always
    command: |
      -verbosity=${LOG_LEVEL}
      -nodekey=/keys/nodekey
      -addr=0.0.0.0:${LISTEN_PORT}
    ports:
      - '0.0.0.0:${LISTEN_PORT}:${LISTEN_PORT}/udp'
    volumes:
      - '${PWD}/keys:/keys'