我有用于创建
mysql映像的docker-compose文件并将端口暴露给3306,但是当我尝试安装CMS时,它给出了错误,它无法连接到数据库.我尝试扫描端口3306,它显示它是打开的,所以MysqL正在运行.
为什么两个docker容器看不到对方？
这是我的docker-compose文件：
PHPfpm: restart: always extends: file: PHP-fpm-5.6.yml service: PHPfpm links: - db:db Nginx: restart: always image: Nginx ports: - "8000:80" links: - PHPfpm:PHPfpm volumes: - ./Nginx/vhost.conf:/etc/Nginx/conf.d/default.conf - ./app:/var/www/html - ./log/Nginx:/var/log/Nginx db: restart: always image: MysqL ports: - "3306:3306" environment: MysqL_ROOT_PASSWORD: 123456 MysqL_USER: user MysqL_PASSWORD: password MysqL_DATABASE: database
要连接到数据库,请使用您提供的链接/别名作为主机名.因此,CMS可以使用db作为主机名和端口3306连接到MysqL.
您将无法连接到localhost或127.0.0.1,因为“localhost”是每个容器内的localhost,因此,在PHPfpm容器中使用“localhost”将尝试连接到PHPfpm容器内的MysqL数据库,但是那里没有服务器运行.
Note that you don’t have to publish (
"3306":"3306") the MysqL ports if you only connect to the database from inside the linked containers. Publishing the ports exposes MysqL on the public network interface,which may be “the Internet”
