extra_hosts 修改hosts文件

extra_hosts:
 - somehost:162.242.195.82
 - otherhost:50.31.209.229

配置容器固定IP

docker-compose配置固定IP各种问题

version: '3.5'
services:
  hadoop1:
    image: hadoop:1.3
    container_name: hadoop1
    command: bash -c "/usr/sbin/sshd && /bin/bash"
    tty: true
    networks:
      mynetwork:
        # 宿主机会自动配置网关IP：172.20.1.1
        ipv4_address: 172.20.1.2

networks:
  mynetwork:
    driver: bridge
    ipam:
      # 这里不用配置driver
      # driver: default
      config:
        - subnet: "172.20.1.0/24"

启动后容器不退出, 交互命令后台运行

version: "3"
services:
  app:
    image: app:1.2.3
    stdin_open: true # docker run -i
    tty: true        # docker run -t