如何使用docker-compose运行Python Django和Celery？

Question

我有一个使用Django和Celery的Python应用程序，我尝试使用docker和docker-compose运行，因为我也使用Redis和Dynamodb

问题如下：

我无法同时执行WSGI和Celery服务，因为第一条指令工作正常。

version: '3.3'

services:
  redis:
    image: redis:3.2-alpine
    volumes:
      - redis_data:/data
    ports:
      - "6379:6379"
  dynamodb:
    image: dwmkerr/dynamodb
    ports:
      - "3000:8000"
    volumes:
      - dynamodb_data:/data
  jobs:
    build:
      context: nubo-async-cfe-seces
      dockerfile: Dockerfile
    environment:
      - REDIS_HOST=redisrvi
      - PYTHONUNBUFFERED=0
      - CC_DYNAMODB_NAMESPACE=None
      - CC_DYNAMODB_ACCESS_KEY_ID=anything
      - CC_DYNAMODB_SECRET_ACCESS_KEY=anything
      - CC_DYNAMODB_HOST=dynamodb
      - CC_DYNAMODB_PORT=8000
      - CC_DYNAMODB_IS_SECURE=False

    command: >
      bash -c "celery worker -A tasks.async_service -Q dynamo-queue -E --loglevel=ERROR &&
               uwsgi --socket 0.0.0.0:8080 --protocol=http --wsgi-file nubo_async/wsgi.py"
    depends_on:
      - redis
      - dynamodb
    volumes:
      - .:/jobs
    ports:
      - "9090:8080"
volumes:
  redis_data:
  dynamodb_data:

有没有人有同样的问题？

Answer 1

这是由@Satevg建议的docker-compose，通过单独的容器运行Django和Celery应用程序。工作良好！

version: '3.3'

services:
  redis:
    image: redis:3.2-alpine
    volumes:
      - redis_data:/data
    ports:
      - "6379:6379"
  dynamodb:
    image: dwmkerr/dynamodb
    ports:
      - "3000:8000"
    volumes:
      - dynamodb_data:/data
  jobs:
    build:
      context: nubo-async-cfe-services
      dockerfile: Dockerfile
    environment:
      - REDIS_HOST=redis
      - PYTHONUNBUFFERED=0
      - CC_DYNAMODB_NAMESPACE=None
      - CC_DYNAMODB_ACCESS_KEY_ID=anything
      - CC_DYNAMODB_SECRET_ACCESS_KEY=anything
      - CC_DYNAMODB_HOST=dynamodb
      - CC_DYNAMODB_PORT=8000
      - CC_DYNAMODB_IS_SECURE=False    
    command: bash -c "uwsgi --socket 0.0.0.0:8080 --protocol=http --wsgi-file nubo_async/wsgi.py"
    depends_on:
      - redis
      - dynamodb
    volumes:
      - .:/jobs
    ports:
      - "9090:8080"
  celery:
    build:
      context: nubo-async-cfe-services
      dockerfile: Dockerfile
    environment:
    - REDIS_HOST=redis
    - PYTHONUNBUFFERED=0
    - CC_DYNAMODB_NAMESPACE=None
    - CC_DYNAMODB_ACCESS_KEY_ID=anything
    - CC_DYNAMODB_SECRET_ACCESS_KEY=anything
    - CC_DYNAMODB_HOST=dynamodb
    - CC_DYNAMODB_PORT=8000
    - CC_DYNAMODB_IS_SECURE=False
    command: celery worker -A tasks.async_service -Q dynamo-queue -E --loglevel=ERROR
    depends_on:
    - redis
    - dynamodb
    volumes:
    - .:/jobs
volumes:
  redis_data:
  dynamodb_data:

Answer 2

你可以参考docker-compose项目的Saleor。我建议让celery运行它的守护进程只依赖于redis作为经纪人。查看docker-compose.yml文件的配置：

services:
  web:
    build:
      context: .
      dockerfile: ./Dockerfile
      args:
        STATIC_URL: '/static/'
    restart: unless-stopped
    networks:
      - saleor-backend-tier
    env_file: common.env
    depends_on:
      - db
      - redis

    celery:
        build:
          context: .
          dockerfile: ./Dockerfile
          args:
            STATIC_URL: '/static/'
        command: celery -A saleor worker --app=saleor.celeryconf:app --loglevel=info
        restart: unless-stopped
        networks:
          - saleor-backend-tier
        env_file: common.env
        depends_on:
          - redis

另请参阅redis文件中显示的environtment vatables单独设置从两个服务到common.env的连接：

CACHE_URL=redis://redis:6379/0
CELERY_BROKER_URL=redis://redis:6379/1