Question

我正在尝试在docker中构建一个celery容器，就像这样：

  celery:
    image: dev3_web
    restart: always
    volumes:
      - ./services/web:/usr/src/app
      - ./services/web/logs:/usr/src/app
    command: celery worker -A celery_worker.celery --loglevel=INFO -Q cache
    environment:
      - CELERY_BROKER=redis://redis:6379/0
      - CELERY_RESULT_BACKEND=redis://redis:6379/0
    depends_on:
      - web
      - redis
    links:
      - redis:redis


  redis:
    image: redis:5.0.3-alpine
    restart: always
    expose:
      - '6379'
    ports:
      - '6379:6379'


  monitor:
    image: dev3_web
    ports:
      - 5555:5555
    command:  flower -A celery_worker.celery --port=5555 --broker=redis://redis:6379/0
    depends_on:
      - web
      - redis

从docker-compose-dev.yml开始运行。

但是我遇到了错误：

celery_1   | Traceback (most recent call last):
celery_1   |   File "/usr/bin/celery", line 10, in <module>
celery_1   |     sys.exit(main())
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/__main__.py", line 16, in main
celery_1   |     _main()
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/bin/celery.py", line 322, in main
celery_1   |     cmd.execute_from_commandline(argv)
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/bin/celery.py", line 496, in execute_from_commandline
celery_1   |     super(CeleryCommand, self).execute_from_commandline(argv)))
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/bin/base.py", line 273, in execute_from_commandline
celery_1   |     argv = self.setup_app_from_commandline(argv)
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/bin/base.py", line 479, in setup_app_from_commandline
celery_1   |     self.app = self.find_app(app)
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/bin/base.py", line 501, in find_app
celery_1   |     return find_app(app, symbol_by_name=self.symbol_by_name)
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/app/utils.py", line 359, in find_app
celery_1   |     sym = symbol_by_name(app, imp=imp)
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/bin/base.py", line 504, in symbol_by_name
celery_1   |     return imports.symbol_by_name(name, imp=imp)
celery_1   |   File "/usr/lib/python3.6/site-packages/kombu/utils/imports.py", line 56, in symbol_by_name
celery_1   |     module = imp(module_name, package=package, **kwargs)
celery_1   |   File "/usr/lib/python3.6/site-packages/celery/utils/imports.py", line 104, in import_from_cwd
celery_1   |     return imp(module, package=package)
celery_1   |   File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
celery_1   |     return _bootstrap._gcd_import(name[level:], package, level)
celery_1   |   File "<frozen importlib._bootstrap>", line 994, in _gcd_import
celery_1   |   File "<frozen importlib._bootstrap>", line 971, in _find_and_load
celery_1   |   File "<frozen importlib._bootstrap>", line 953, in _find_and_load_unlocked
celery_1   | ModuleNotFoundError: No module named 'celery_worker'

文件夹结构：

web/
   dockerfile
   celery_worker.py
   project/ 
          __init__.py

web / celery_worker.py

#!/usr/bin/env python

import os
from project import celery, create_app

app = create_app()
app.app_context().push()

web / project / __ init __。py

import os
# third party libs
from flask import Flask  
from flask_sqlalchemy import SQLAlchemy
from celery import Celery
from flask_debugtoolbar import DebugToolbarExtension
from flask_cors import CORS
from flask_migrate import Migrate
from flask_bcrypt import Bcrypt
from flask_mail import Mail

# instantiate the db
db = SQLAlchemy()
# background processes instance
celery = Celery(__name__, broker='redis://redis:6379/0')
# extensions
toolbar = DebugToolbarExtension()
cors = CORS()
migrate = Migrate()
bcrypt = Bcrypt()  
mail = Mail()

def create_app(script_info=None):
    from .api import routes

    # instantiate the app
    app = Flask(__name__)

    # set config
    app_settings = os.getenv('APP_SETTINGS')
    app.config.from_object(app_settings)

    # set up extensions
    db.init_app(app)
    toolbar.init_app(app)
    cors.init_app(app)
    migrate.init_app(app, db)
    bcrypt.init_app(app)   
    # register blueprints
    routes.init_app(app)
    #models.init_app(app)
    celery.conf.update(app.config)

    # shell context for flask cli
    @app.shell_context_processor
    def ctx():
        return {'app': app, 'db': db}

    return app

在我的 web / Dockerfile 中，我像这样设置工作目录：

(...)

# set working directory
WORKDIR /usr/src/app

(...)

在我使用docker容器之前，该设置曾经与flask配合使用，并且在根目录下运行以下命令：

celery worker -A celery_worker.celery --loglevel=INFO -Q cache

我这里缺少什么吗？

Answer 1

celery:
  image: dev3_web
  restart: always
  volumes:
    - ./services/web:/usr/src/app
    - ./services/web/logs:/usr/src/app   # <--- here is your problem

您正在加载compose文件中app目录上方的logs子目录中。列出的最后一个将获胜，因此您将只有一个空文件夹或一些日志文件，正在运行的容器中没有代码。

Docker-没有名为'celery_worker'的模块

1 个答案: