相关疑难解决方法(0)

我有一些问题连接到我用docker-compose启动的mysql docker容器.这是一篇很长的帖子(对不起!).

这是我的docker-compose.yml文件:

db:
  image: mysql:5.7
  ports:
    - "3306:3306" # I have tried both ports and expose "3306". Still doesn't work 
  environment:
    - MYSQL_ROOT_PASSWORD="secret"
    - MYSQL_USER="django"
    - MYSQL_PASSWORD="secret"
    - MYSQL_DATABASE="myAppDB"

然后:

$> docker-compose build
db uses an image, skipping #expected!
$> docker-compose up
<<LOTS OF OUTPUT>>

好的,现在我有一个正在运行的docker容器运行器mysql:5.7.大!或者是吗？在我的django应用程序中进行测试时,我收到操作错误,表示不允许用户连接数据库.好的,那也许是我的django呢？

$> docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
c7216f99ca0f        mysql:5.7           "docker-entrypoint.sh"   3 minutes ago       Up 3 minutes        0.0.0.0:3306->3306/tcp   sharpfin_db_1

$> docker-machine ip dev
192.168.99.100
$> mysql -h 192.168.99.100 -P 3306 …

我创建了一个小的docker-compose.yml,曾经像魅力一样工作,以部署小型WordPress实例.它看起来像这样:

wordpress:
  image: wordpress:latest
  links:
   - mysql
  ports:
   - "1234:80"
  environment:
    WORDPRESS_DB_USER: wordpress
    WORDPRESS_DB_NAME: wordpress
    WORDPRESS_DB_PASSWORD: "password"
    WORDPRESS_DB_HOST: mariadb
    MYSQL_PORT_3306_TCP: 3306
  volumes:
    - /srv/wordpress/:/var/www/html/
mysql:
  image: mariadb:latest
  mem_limit: 256m
  container_name: mariadb
  environment:
    MYSQL_ROOT_PASSWORD: "password"
    MYSQL_DATABASE: wordpress
    MYSQL_USER: wordpress
    MYSQL_PASSWORD: "password"
  volumes:
    - /srv/mariadb:/var/lib/mysql

但是当我现在开始它时(可能是因为Docker更新到Docker版本1.9.1,构建a34a1d5),它失败了

wordpress_1 | Warning: mysqli::mysqli(): (HY000/2002): Connection    refused in - on line 10
wordpress_1 | 
wordpress_1 | MySQL Connection Error: (2002) Connection refused

当我有猫/etc/hosts的wordpress_1条目有MySQL:

172.17.0.10 mysql 12a564fdbc56 mariadb

我能够ping …