Docker Compose
Docker Compose
- 上线：
docker compose up -d，-d是以后台方式 - 下线：
docker compose down，具体参数可以用--help查看 - 启动：
docker compose start x1 x2 x3：x1，x2，x3 是在文件compose.yaml中配置的应用 - 停止：
docker compose stop x1 x2 x3 - 扩容：
docker compose scale x2=3，让 x2 的实例启动 3 份
命令式安装
# 创建网络
$ docker network create blog
# 启动mysql
$ docker run -d -p 3306:3306 \
-e MYSQL_ROOT_PASSWORD=123456 \
-e MYSQL_DATABASE=wordpress \
-v mysql-data:/var/lib/mysql \
-v /app/myconf:/etc/mysql/conf.d \
--restart always --name mysql \
--network blog \
mysql:latest
# 启动wordpress
$ docker run -d -p 8080:80 \
-e WORDPRESS_DB_HOST=mysql \
-e WORDPRESS_DB_USER=root \
-e WORDPRESS_DB_PASSWORD=123456 \
-e WORDPRESS_DB_NAME=wordpress \
-v wordpress:/var/www/html \
--restart always --name wordpress-app \
--network blog \
wordpress:latest
compose.yaml
name: myblog
services:
mysql:
container_name: mysql # 不加这个就会使用服务名
image: mysql:latest
ports:
- "3306:3306"
environment:
- MYSQL_ROOT_PASSWORD=123456
- MYSQL_DATABASE=wordpress
volumes:
- mysql-data:/var/lib/mysql # 卷映射
- /app/myconf:/etc/mysql/conf.d # 目录挂载
restart: always
networks:
# 自定义网络
- blog
wordpress:
image: wordpress
ports:
- "8080:80"
environment:
WORDPRESS_DB_HOST: mysql
WORDPRESS_DB_USER: root
WORDPRESS_DB_PASSWORD: 123456
WORDPRESS_DB_NAME: wordpress
volumes:
- wordpress:/var/www/html
restart: always
networks:
- blog
depends_on:
# 依赖于 mysql
- mysql
volumes:
# 卷映射
mysql-data:
wordpress:
networks:
# 网络
blog:
在文件所在的目录下，使用 docker compose up -d 在后台启动：
root@spring:~# docker compose up -d
[+] Running 5/5
✔ Network myblog_blog Created 0.2s
✔ Volume "myblog_mysql-data" Created 0.0s
✔ Volume "myblog_wordpress" Created 0.0s
✔ Container mysql Started 1.9s
✔ Container myblog-wordpress-1 Started 2.1s
root@spring:~#
或者用 docker compose -f compose.yaml up -d 来指定启动文件。
