Docker Compose + Postgres：公开端口 [英] Docker Compose + Postgres: Expose port

问题描述

我目前正在尝试将Docker用于新的Django / Postgres项目。我在Mac上工作，通常使用Postico快速连接到我的数据库。

I am currently trying to use Docker for my new Django/Postgres project. I am working on a Mac and usually use Postico to quickly connect to my database.

我以前是这样连接的：

我使用了Docker官方文档来设置docker-compose。我现在遇到的问题是我无法通过Postico连接到postgres数据库。在我看来，问题出在端口未暴露。

I used the official Docker documentation to setup docker-compose. I now have the issue, that I can't connect via Postico to the postgres db. It seems to me that the problem comes from the ports not being exposed.

version: '3'

services:
  db:
    image: postgres
  web:
    build: .
    command: python3 manage.py runserver 0.0.0.0:8000
    volumes:
      - .:/code
    ports:
      - "8000:8000"
    depends_on:
      - db

推荐答案

主机端口，将其添加到Compose文件中的 db 服务中：

Just map the port to the host machine, add this to the db service in your Compose file:

ports:
  - "5432:5432"

也请确保在撰写文件中像这样设置postgres密码变量

Also make sure to set the postgres password variable in the compose file like this

environment:
  POSTGRES_PASSWORD: example

默认用户是postgres，您可以使用 POSTGRES_USER 变量进行更改。

The default user is postgres, you can change it with the POSTGRES_USER variable.

您可以在此处通过所有选项阅读有关图像的用法： https://hub.docker.com/_/postgres/

You can read about the usage of the image with all options here: https://hub.docker.com/_/postgres/

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