Docker Compose

概述

Docker Compose单机多容器部署工具

通过yml定义多容器如何部署

相关文件

[[email protected] wordpress]# ls

docker-compose.yml

安装

地址

https://docs.docker.com/compose/install/

命令

sudo curl -L "https://github.com/docker/compose/releases/download/1.25.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

 

如果出现问题：

fatal: unable to access 'https://github.com/wenshaoyan/function-interceptor/': Peer reports incompatible or unsupported protocol version.

解决方法：

sudo yum update nss curl  # nss为名称解析和认证服务 curl为网络请求库

[[email protected] ~]# sudo chmod +x /usr/local/bin/docker-compose

[[email protected] ~]# docker-compose --version

docker-compose version 1.25.0, build 0a186604

此时，安装成功

概述
Docker Compose单机多容器部署工具
通过yml定义多容器如何部署
相关文件
[[email protected] wordpress]# ls
docker-compose.yml
安装
地址
https://docs.docker.com/compose/install/
命令
sudo curl -L "https://github.com/docker/compose/releases/download/1.25.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

如果出现问题：
fatal: unable to access 'https://github.com/wenshaoyan/function-interceptor/': Peer reports incompatible or unsupported protocol version.
解决方法：
sudo yum update nss curl  # nss为名称解析和认证服务 curl为网络请求库 
[[email protected] ~]# sudo chmod +x /usr/local/bin/docker-compose
[[email protected] ~]# docker-compose --version
docker-compose version 1.25.0, build 0a186604
此时，安装成功
version: '3.3'

services:  //服务安装镜像的前后顺序
   db:  //自己定义
     image: mysql:5.7 #docker run mysql:5.7
     volumes:
       - db_data:/var/lib/mysql  
     restart: always # 自动重启
     environment: #运行效果为docker run -e MYSQL_ROOT_PASSWORD = somewordpress
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress

   wordpress: //自己定义
     depends_on: #运行效果为docker --link db
       - db
     image: wordpress:latest
     ports:
       - "8000:80"
     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
       WORDPRESS_DB_NAME: wordpress
volumes:
db_data: {}

注释：
db_data与volumes:db_data: {}对应
此时，是空值，运行效果是 -v empty:/var/lib/mysql
如果有值，对应是物理机的路径，路径下可以放sql，构建时就会将sql加载的db中

启动
cd wordpress/
docker-compose up –d
访问
http://192.168.32.17:8000/ 
 
移除
[[email protected] wordpress]# docker-compose down –volumes

启动

cd wordpress/

docker-compose up –d

访问

http://192.168.32.17:8000/

 

移除

[[email protected] wordpress]# docker-compose down –volumes