postgres django.db.utils.operationalerror:无法连接到服务器:连接被拒绝

试图在Docker中运行我的Django服务器,但是Postgres端口已经被使用了?当我运行“docker compose up”时,我收到以下错误:

django.db.utils.OperationalError: could not connect to server: Connection refused
    Is the server running on host "127.0.0.1" and accepting
    TCP/IP connections on port 5432?

ERROR: Service 'web' failed to build: The command '/bin/sh -c python manage.py migrate' returned a non-zero code: 1

Sudo服务PostgreSQL状态

返回:

9.6/main (port 5432): online

sudo lsof-np grep听着

返回:

postgres  15817         postgres    3u     IPv4            1022328        0t0        TCP 127.0.0.1:5432

我试着运行“sudo kill-915817”,但docker compose up仍然收到相同的错误。

docker-compose.yml公司

version: '3'

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

设置.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'stemletics',
        'USER': 'stemleticsadmin',
        'PASSWORD': 'changeme',
        'HOST': '127.0.0.1', # set in docker-compose.yml
        'PORT': 5432 # default postgres port
    }
}