Errno 13 权限被拒绝：Docker + Celery Beat 中的 '/app/celerybeat.pid'

Question

Celery Beat 在我尝试运行 docker 容器时导致权限错误。这是因为 Docker 文件中的用户权限，所以我似乎在那里配置了错误。我尝试了所有可能的解决方案，但错误仍然出现。请帮我弄清楚我做错了什么。谢谢。

这是 Docker 文件：

FROM python:3.7-alpine

ENV PYTHONUNBUFFERED 1
COPY ./requirements.txt /requirements.txt
RUN apk add --update --no-cache postgresql-client jpeg-dev
RUN apk add --update --no-cache --virtual .tmp-build-deps \ 
    gcc libc-dev linux-headers postgresql-dev musl-dev zlib zlib-dev
RUN pip install -r /requirements.txt
RUN apk del .tmp-build-deps

RUN mkdir /app
COPY ./app /app
WORKDIR /app
    
RUN adduser -D appuser
RUN chown -R appuser:appuser /app
RUN chmod -R 755 /app/staticfiles

USER appuser

和docker-撰写文件：

version: '3'

services:
  app:
    build:
      context: .
    env_file:
      - ./.env.dev
    volumes:
      - ./app:/app
      - static_volume_app:/app/staticfiles
      - media_volume_app:/app/media
    command: >
      sh -c "python3 manage.py migrate &&
             python3 manage.py wait_for_db &&
             gunicorn app.wsgi:application --bind 0.0.0.0:8000"
    expose:
      - "8000"
    depends_on:
      - db           
  db:
    image: postgres:10-alpine
    env_file:
      - ./.env.dev
    ports:
      - "5432:5432"
    volumes: 
      - pgdata:/var/lib/postgresql/data
  redis:
    image: redis:alpine
  celery:
    restart: always
    build:
      context: .
    command: celery -A app worker -l info
    volumes:
      - ./app:/app
    env_file:
      - ./.env.dev
    depends_on:
      - db
      - redis
      - app
  celery-beat:
    build:
      context: .
    command: celery -A app beat -l info
    volumes:
      - ./app:/app
    env_file:
      - ./.env.dev
    depends_on:
      - db
      - redis
      - app
  nginx:
    restart: always
    build:
      context: .
      dockerfile: ./nginx/Dockerfile
    volumes:
      - static_volume_app:/app/staticfiles
      - media_volume_app:/app/media
    ports:
      - "80:80"
    depends_on: 
      - app
volumes:
  pgdata:
  static_volume_app:
  media_volume_app:

和完整的错误信息：

celery.platforms.LockFailed: [Errno 13] Permission denied: '/app/celerybeat.pid'

当我评论 Docker 文件中的最后 4 行（用户配置）时，它工作正常。

Answer 1

实际上，它通过更改 celery beat 服务中的用户来工作：

celery-beat:
    build:
      context: .
    user: root
    command: celery -A app beat -l info
    volumes:
      - ./app:/app
    env_file:
      - ./.env.dev
    depends_on:
      - db
      - redis
      - app

Errno 13 权限被拒绝：Docker + Celery Beat 中的 '/app/celerybeat.pid'

Errno 13 Permission denied: '/app/celerybeat.pid' in Docker + Celery Beat

django

django-celery

celerybeat

docker

docker-compose