Docker用docker compose部署服务

Posted 2020-10-30

用docker compose部署服务

docker compose可以方便我们快捷高效地管理容器的启动、停止、重启等操作，它类似linux下的shell脚本，基于yaml语法，在该文件里我们可以描述应用的架构，比如用什么镜像、数据卷、网络模式、监听端口等信息。我们可以在一个compose文件中定义一个多容器的应用，然后通过该compose来启动这个应用。

下载安装docker-compose

# curl -L https://github.com/docker/compose/releases/download/1.21.0/docker-compose-Linux-x86_64 > /usr/local/bin/docker-compose
# chmod 755 /usr/local/bin/docker-compose
[[email protected] ~]# docker-compose version
docker-compose version 1.21.0, build 5920eb0
docker-py version: 3.2.1
CPython version: 3.6.5
OpenSSL version: OpenSSL 1.0.1t  3 May 2016

编辑docker-compose.yml

version: "2"
services:
  app1:
    image: centos:nginx
    ports:
      - "8080:80"
    networks:
      - "net1"
    volumes:
      - /data/:/data
  app2:
    image: centos:net-tools
    networks:
      - "net2"
    volumes:
      - /data/:/data1
    entrypoint: tail -f /etc/passwd
networks:
  net1:
    driver: bridge
  net2:
    driver: bridge

启动所有的容器

查看运行的容器

docker-compose的命令 docker-compose --help

[[email protected] ~]# docker-compose start
[[email protected] ~]# docker-compose down
Stopping root_app2_1 ... done
Stopping root_app1_1 ... done
Removing root_app2_1 ... done
Removing root_app1_1 ... done
Removing network root_net1
Removing network root_net2
[[email protected] ~]# docker-compose ps
Name   Command   State   Ports
------------------------------