Python django和mysql的docker编写错误

我正在尝试用Docker容器配置Django和MySql应用程序

对于Django，我使用python:3.7-slim映像，对于MySql:5.6

当我运行

docker compose up

时，它返回一个如下所述的错误-

ERROR: for app_mysql_db_1  Cannot start service mysql_db: driver failed programming external connectivity on endpoint app_mysql_db_1 (c647d4793a198af2c09cc52d08191fb2cd984025ad0a61434ad1577d9dcccebe): Error starting userland proxy: listen tcp 0.0.0.0:3306: bind: address already in use 

我运行命令

docker ps-a

检查docker状态，发现mysql容器已创建，但python容器状态已退出

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                     PORTS               NAMES
7d91795e0bae        mysql:5.6           "docker-entrypoint.s…"   15 seconds ago      Created                                        app_mysql_db_1
fa0419ad0f21        e0bf94710555        "/bin/sh -c 'adduser…"   2 minutes ago       Exited (1) 2 minutes ago                       pedantic_faraday

有人可以重写或建议修改配置吗

Dockerfile

FROM python:3.7-slim

ENV PYTHONUNBUFFERED 1

RUN apt-get update
RUN apt-get install python3-dev default-libmysqlclient-dev gcc  -y
COPY ./requirements.txt /requirements.txt
RUN pip install -r /requirements.txt

RUN mkdir /app

WORKDIR /app
COPY . /app

docker compose.yaml

version: "3"

services:
  eitan-application:
    restart: always
    build:
      context: .
    ports:
      - "8000:8000"
    volumes:
      - ./eitan:/app
    command: >
      sh -c "python3 manage.py runserver 0.0.0.0:8000
      && python3 manage.py makemigrations
      && python3 manage.py migrate"
    depends_on:
      - mysql_db
  mysql_db:
    image: mysql:5.6
    command: mysqld --default-authentication-plugin=mysql_native_password
    volumes:
      - "./mysql:/var/lib/mysql"
    ports:
      - "3306:3306"
    restart: always
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=root
      - MYSQL_USER=root
      - MYSQL_PASSWORD=root

设置.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'my-app-db',
        'USER': 'root',
        'PASSWORD': 'root',
        'HOST': 'mysql_db',
        'PORT': 3307,
    }
}

---

bind:address已在使用中

表示您有一些本地数据库正在运行。如果您不需要访问docker compose网络之外的数据库，请不要公开端口3306。所以我会试着不用测试它

。。。
端口：
- "3306:3306"
...

同样在

settings.py

中，您连接到端口

mysql\u db:3307

，因此将其更改为默认端口3306

即使将数据库端口公开给localhost上的其他端口，settings.py也会使用

mysql\u db

network进行连接，所以不应该在django设置中更改此端口