构建Docker mysql数据库后抛出错误

我试图用Docker+Nginx+MySQL运行一个Django项目，在成功构建之后，通过运行

docker-compose up --build

这是我的设置.py数据库连接

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'smartCut',
        'USER': 'antu',
        'PASSWORD': 'secure',
        'HOST': 'mysql',
        'PORT': 3306,
    }
}

如果我使用主机：“mysql”

错误 但是如果我使用 如果我使用主机：“localhost”

此外，此项目在管理面板中找不到静态文件

我做错了什么

更新：

$docker ps-a

docker compose.yml

version: "2.4"
services:
  web:
    container_name: web
    build: ./docker/nginx
    ports:
      - 8888:80
    volumes:
      - ./app:/var/www/html
    working_dir: /etc/nginx
    links:
      - python
  python:
    container_name: python
    build: ./docker/python
    volumes:
      - ./app:/var/www/html
    working_dir: /var/www/html
    depends_on:
      mysql:
        condition: service_healthy
  mysql:
    build: docker/mysql
    container_name: mysql
    ports:
      - 3306:3306
    volumes:
      - data-volume:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=secure
      - MYSQL_DATABASE=smartCut
    healthcheck:
      test: "exit 0"

volumes:
  data-volume:

$docker日志83572753b4ae

---

如前所述，您应该在数据库配置中使用

mysql

作为主机和

root

作为

USER

：

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'smartCut',
        'USER': 'root',
        'PASSWORD': 'secure',
        'HOST': 'mysql',
        'PORT': 3306,
    }
}

mysql

将解析为mysql容器IP，因为来自compose的容器将连接到同一网络

此外，您还使用环境变量-

mysql\u root\u password=secure

为您的

mysql

容器设置了

root

密码，因此

root

必须用作用户

如果您想创建新用户，可以使用

MYSQL\u user，MYSQL\u PASSWORD

环境变量-参考可在中找到。相应地修改docker compose：

version: "2.4"
services:
  web:
    container_name: web
    build: ./docker/nginx
    ports:
      - 8888:80
    volumes:
      - ./app:/var/www/html
    working_dir: /etc/nginx
    links:
      - python
  python:
    container_name: python
    build: ./docker/python
    volumes:
      - ./app:/var/www/html
    working_dir: /var/www/html
    depends_on:
      mysql:
        condition: service_healthy
  mysql:
    build: docker/mysql
    container_name: mysql
    ports:
      - 3306:3306
    volumes:
      - data-volume:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=secure #root password
      - MYSQL_DATABASE=smartCut #this database will be created for MYSQL_USER
      - MYSQL_USER=antu 
      - MYSQL_PASSWORD=secure #your user password
    healthcheck:
      test: "exit 0"

volumes:
  data-volume:

---

这对我来说很有用，我可以用这个docker组件连接到MySQL。您是否更改了此repo中的代码？我尝试运行两个项目，其中一个项目运行在3306 MySQL端口，另一个项目运行在3301端口，但两个都不工作您是否更改了

app/config/settings.py

文件和数据库配置？显示此文件。您需要将收到的实际错误消息作为文本包含在问题中；不要粘贴浏览器窗口的屏幕截图。显示告诉应用程序如何连接到数据库的代码或配置也会很有帮助。

USER

应该是数据库设置中的

root

。并将

mysql

保留为主机。

version: "2.4"
services:
  web:
    container_name: web
    build: ./docker/nginx
    ports:
      - 8888:80
    volumes:
      - ./app:/var/www/html
    working_dir: /etc/nginx
    links:
      - python
  python:
    container_name: python
    build: ./docker/python
    volumes:
      - ./app:/var/www/html
    working_dir: /var/www/html
    depends_on:
      mysql:
        condition: service_healthy
  mysql:
    build: docker/mysql
    container_name: mysql
    ports:
      - 3306:3306
    volumes:
      - data-volume:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=secure
      - MYSQL_DATABASE=smartCut
    healthcheck:
      test: "exit 0"

volumes:
  data-volume:

2019-07-21T10:00:06.327977Z 0 [Warning] [MY-011070] [Server] 'Disabling symbolic links using --skip-symbolic-links (or equivalent) is the default. Consider not using this option as it' is deprecated and will be removed in a future release.
2019-07-21T10:00:06.328151Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.16) starting as process 1
2019-07-21T10:00:06.332333Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2019-07-21T10:00:12.001312Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
2019-07-21T10:00:12.150341Z 0 [Warning] [MY-011810] [Server] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
2019-07-21T10:00:12.290955Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.16'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server - GPL.
2019-07-21T10:00:12.817464Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Socket: '/var/run/mysqld/mysqlx.sock' bind-address: '::' port: 33060

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'smartCut',
        'USER': 'root',
        'PASSWORD': 'secure',
        'HOST': 'mysql',
        'PORT': 3306,
    }
}

version: "2.4"
services:
  web:
    container_name: web
    build: ./docker/nginx
    ports:
      - 8888:80
    volumes:
      - ./app:/var/www/html
    working_dir: /etc/nginx
    links:
      - python
  python:
    container_name: python
    build: ./docker/python
    volumes:
      - ./app:/var/www/html
    working_dir: /var/www/html
    depends_on:
      mysql:
        condition: service_healthy
  mysql:
    build: docker/mysql
    container_name: mysql
    ports:
      - 3306:3306
    volumes:
      - data-volume:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=secure #root password
      - MYSQL_DATABASE=smartCut #this database will be created for MYSQL_USER
      - MYSQL_USER=antu 
      - MYSQL_PASSWORD=secure #your user password
    healthcheck:
      test: "exit 0"

volumes:
  data-volume: