elasticsearch - Docker容器之间的通讯出现问题

Question

我正在运行“elasticsearch”容器。我可以 curl 容器并获得结果，但是当我尝试从“Web”容器中与容器进行通信时，它将拒绝连接。

docker-compose up
curl localhost:9200 // works.
curl docker-compose run web curl localhost:9200 // connection refused.

docker-compose.yml

version: '2'
services:
  web:
    build:
      context: .
      dockerfile: Dockerfile
    volumes:
      - .:/src
    ports:
      - "5000:5000"
    depends_on:
      - elasticsearch

  elasticsearch:
    image: elasticsearch:5.1.2
    ports:
      - "9200:9200"

Dockerfile

FROM python:3.5

ADD . /src
WORKDIR /src

RUN pip install -r requirements.txt

CMD python project/wsgi.py

Answer 1

您不能使用localhost:9200容器中的web连接到elasticsearch容器。您可以定义一个链接，也可以只使用服务名称(默认情况下已映射):

curl elasticsearch:9200

Links allow you to define extra aliases by which a service is reachable from another service. They are not required to enable services to communicate - by default, any service can reach any other service at that service’s name.

另请参阅Docker Compose Links