python - pymongo.errors.ServerSelectionTimeoutError : localhost:27017: [Errno 111] Connection refused

Question

我正在尝试将 docker-compose 与我的 django-rest 应用程序一起使用。当我自己运行它时 python manage.py runserver 它运行良好。

如果我尝试使用 docker-compose sudo docker-compose up 它也会运行服务器，但是当我在浏览器中打开页面时出现错误。

pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused

我已经有了数据库，所以我只是在 settings.py

中使用这些行

MONGODB_DATABASES = {
    "default": {
        "name": 'api',
        "host": 'localhost',
       "port": 27017
    },
}

这是我的 Dockerfile:

FROM python:3
ENV PYTHONUNBUFFERED 1
RUN mkdir /code
WORKDIR /code
COPY . /code
RUN pip install -r requirements.txt

我的 docker-compose.yml:

version: '3.0'
services:
  web:
    build: .
    command: python manage.py runserver 0.0.0.0:8000
    volumes:
      - .:/code
    ports:
      - "8000:8000"
  mongo:
    image: mongo

已经试过了:

Pymongo keeps refusing the connection at 27017

Answer 1

By default Compose sets up a single network for your app. Each container for a service joins the default network and is both reachable by other containers on that network, and discoverable by them at a hostname identical to the container name.

根据 docker-compose.yaml 文件，mongo 容器可通过 mongo:27017 从 web 访问> 容器，因此 settings.py 应更改为:

MONGODB_DATABASES = {
    "default": {
        "name": 'api',
        "host": 'mongo',
       "port": 27017
    },
}