VScode调试器

Question

最近，我已经开始在我的项目中使用docker来运行以下内容

• 姜戈
• Nginx
• 古尼坎
• 芹菜
• 波斯特格斯
• Redis

早些时候，设置调试器很容易，但是在使用了坞-撰写之后，我无法做到这一点。一旦启动调试器，它就会加载一段时间，然后在没有日志或错误的情况下自动停止。这是相关代码。

launch.json

{
"configurations": [
    {
        "name": "Python: Remote Attach",
        "type": "python",
        "request": "attach",
        "connect": {
            "host": "localhost",
            "port": 443
        },
        "pathMappings": [
            {
                "localRoot": "${workspaceFolder}",
                "remoteRoot": "."
            }
        ]
    }
]
}

docker-compose.yml

version: '3'

services:
 db:
     image: postgres:12
     env_file: .env
     environment:
        - POSTGRES_DB=${DB_NAME}
        - POSTGRES_USER=${DB_USER}
        - POSTGRES_PASSWORD=${DB_PASSWORD}
    ports:
        - "5431:5432"
    volumes:
        - dbdata:/var/lib/postgresql/data
nginx:
    image: nginx:1.14
    ports:
        - "443:443"
        - "80:80"
    volumes:
        - ./config/nginx/:/etc/nginx/conf.d
        - ./myapp/static:/var/www/myapp.me/static/
web:
    restart: always
    build: ./myapp
    command:  bash -c "
                python manage.py collectstatic --noinput 
                && python manage.py makemigrations
                && python manage.py migrate
                && gunicorn --certfile=/etc/certs/localhost.crt --keyfile=/etc/certs/localhost.key myapp.wsgi:application --bind 0.0.0.0:443 --reload"
    expose:
        - "443"
    depends_on:
        - db
        - nginx
    env_file:
        - .env
    volumes:
        - ./myapp:/opt/myapp
        - ./config/nginx/certs/:/etc/certs
        - ./myapp/static:/var/www/myapp.me/static/

broker:
    image: redis:alpine
    expose: 
        - "6379"

celery:
    build: ./myapp
    command: celery -A myapp worker -l info
    env_file:
        - .env
    volumes:
        - ./myapp:/opt/myapp
    depends_on:
        - broker
        - db

celery-beat:
    build: ./myapp
    command: celery -A myapp beat -l info
    env_file:
        - .env
    volumes:
        - ./myapp:/opt/myapp
    depends_on:
        - broker
        - db

volumes:
    dbdata:

Answer 1

最后我自己解决了这个问题。很少有人能摆脱这个问题。

您需要使用调试器并将其放在您的manage.py文件中，以便开始侦听端口。我做了这样的事

import debugpy

debugpy.listen(('0.0.0.0', 5678))
debugpy.wait_for_client()
debugpy.breakpoint()

除此之外，我们还需要将这个端口映射到主机内部的一个端口。为此，我们需要更改并在web服务中添加一行

ports:
    - "5678:5678"

我的launch.json看起来像这样

{
"configurations": [
    {
        "name": "Python: Remote Attach",
        "type": "python",
        "request": "attach",
        "connect": {
            "host": "0.0.0.0",
            "port": 5678
        },
        "pathMappings": [
            {
                "localRoot": "${workspaceFolder}/myapp",
                "remoteRoot": "."
            }
        ]
    }
]
}

注意:确保您的需求文件中有调试器，或者手动安装它。

Answer 2

如果将调试器设置为模块，则可以使用环境变量打开或关闭调试器。我只是用这篇文章作为gunicorn/gunicorn调试解决方案的基础。

# debugger.py
from os import getenv

def initialize_flask_server_debugger_if_needed():
    if getenv("DEBUGGER") == "True":
        import multiprocessing

        if multiprocessing.current_process().pid > 1:
            import debugpy

            debugpy.listen(("0.0.0.0", 10001))
            print("⏳ VS Code debugger can now be attached, press F5 in VS Code ⏳", flush=True)
            debugpy.wait_for_client()
            print("� VS Code debugger attached, enjoy debugging �", flush=True)

见禤浩焯的文章：VS代码中的烧瓶调试