Docker communication from one container to another-CodePudding

I have two docker containers. I'm trying to curl between one and the other container.

I've set up a common network.

Here is my docker-compose:

version: '3.8'
services:
  web:
    build: ./webapp/.
    container_name: storyweb
    command: python3 /app/manage.py runserver 0.0.0.0:8000
    volumes:
      - ./webapp/:/app/
    ports:
      - 8007:8000
    networks:
      - backend
    env_file:
      - ./.env.dev
  novnc:  
    container_name: dramatica
    build: ./dramatica/.
    environment:
      # Adjust to your screen size
      - DISPLAY_WIDTH=1200
      - DISPLAY_HEIGHT=800
      - PUID=1000
      - PGID=1000
    ports:
      - "8008:8080"
    volumes:
      - ./dramatica:/app
    networks:
      - backend
    restart: unless-stopped
    depends_on:
      - web 
    entrypoint: /app/entrypoint.sh
networks:
  backend:
    driver: bridge

I'm tryin gto curl from inside vovnc container:

curl -i web:8007

I've also tried storyweb.

Any idea why this is not working?

CodePudding user response：

When your server container runs a server process

python3 /app/manage.py runserver 0.0.0.0:8000

connections between containers need to go to that port 8000. ports: aren't used or required here, and can be removed if you don't require the service to be directly accessible from outside containers on the same Docker network.

CodePudding user response：

If you are trying the command curl -i web:8007 from your host machine. It will not work. You try this command from inside a container. You can try the following method

curl -i localhost:8007
docker-compose novnc curl -i web:8007r