有这个docker-compose.yml：
version: '3'
services:
mediawiki:
image: mediawiki
restart: always
ports:
- 8080:80
links:
- database
volumes:
- /var/www/html/images
# After initial setup, download LocalSettings.php to the same directory as
# this yaml and uncomment the following line and use compose to restart
# the mediawiki service
# - ./LocalSettings.php:/var/www/html/LocalSettings.php
database:
image: mariadb
restart: always
environment:
# @see https://phabricator.wikimedia.org/source/mediawiki/browse/master/includes/DefaultSettings.php
MYSQL_DATABASE: my_wiki
MYSQL_USER: wikiuser
MYSQL_PASSWORD: example
MYSQL_RANDOM_ROOT_PASSWORD: yes
当我跑步时，docker ps我得到：
89db8794029a mysql:latest "docker-entrypoint..." ... 0.0.0.0:8083->3306/tcp some-mysql
这是一个正在运行的mysql docker容器。
如何修改docker-compose.yml数据库以使其指向已运行的mysql docker容器（89db8794029a）的方式？
您不必在yml文件上添加数据库服务。
为了使mediawiki服务连接到some-mysql容器，mediawiki容器必须与some-mysql容器位于同一网络上
假设mediawiki已经建立
首先，您需要了解某些MySQL使用的网络，
docker network ls
我猜是'some-mysql_default'
将媒体Wiki连接到某些mysql
docker network connect some-mysql_default mediawiki
现在，在MediaWiki配置中使用“ some-mysql”作为主机名数据库
要么
yml文件自动连接到mysql网络
version: '3'
services:
mediawiki:
image: mediawiki
restart: always
ports:
- 8080:80
links:
- database
volumes:
- /var/www/html/images
# After initial setup, download LocalSettings.php to the same directory as
# this yaml and uncomment the following line and use compose to restart
# the mediawiki service
# - ./LocalSettings.php:/var/www/html/LocalSettings.php
networks:
- default
- some-mysql_default
networks:
default: # this network
driver: bridge
some-mysql_default: # external network
external: true
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我来说两句