django-redis在坞内的连接错误

Question

姜戈views.py

import redis
import jwt
from access import utils
import os
redis_url = os.environ['REDIS_URI']

R = redis.StrictRedis(redis_url)

def set(request):
    R.set('foo', 'bar')
    return JsonResponse({"code":200,"msg":"success"})

码头工

version: "3"

services:
  rango:
    container_name: rango
    build: ./
    command: python backend/manage.py runserver 0.0.0.0:8000
    # command: npm start --prefix frontend/rango-frontend/
    working_dir: /usr/src/rango
    environment:
      REDIS_URI: redis://redis_db:6379
    ports:
      - "8000:8000"
    tty: true
    links:
      - elasticsearch
      - node
      - redis

  #elastic search
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.5.0
    ports:
      - "9200:9200"

  #node
  node:
    image: node:10.13.0

  #redis
  redis:
    image: redis
    environment:
      - ALLOW_EMPTY_PASSWORD=yes
    ports:
      - "6379:6379"

这里我是在码头内转接来自django的红葡萄酒。它给了我一些例外，拒绝了连接。请查看我的代码和下面的共享屏幕截图

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Answer 1

默认情况下，docker组合使容器可以被发现，其主机名与容器名称相同。因此，您的redis容器可以通过主机名redis发现。但是，Django容器使用的是主机名redis_db。

更新docker-compose.yml并更改REDIS_URI以引用正确的主机名：

REDIS_URI: redis://redis:6379