cassandra:
    image: imageregistry:443/mygroup/cassandra
    deploy:
      mode: global
      placement:
        constraints: [node.labels.host_role == my_label]
      restart_policy:
        condition: on-failure
    logging:
      driver: gelf
      options:
        gelf-address: "udp://localhost:12201"
    environment:
      - LOGGING_LEVEL=WARN
    ulimits:
      nproc: 65535
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 100000
        hard: 100000
    volumes:
      - "/var/lib/cassandra/cassandra-data:/var/lib/cassandra-data"
      - "/var/lib/cassandra/cassandra-commitlog:/var/lib/cassandra-commitlog"
    networks:
      mylan:
        aliases:
          - cassandra