Search code examples
dockerdocker-composegraphqldockerfile

No access to GraphQL in my docker container

I am trying to connect to my GraphQL API in a docker container, but I am not able to reach it in Postman nor a web browser.

My GraphQL API container

My dockerfile and docker compose file might have a problem, but I am not sure what is broken.

In my docker image file I am exposing ports:

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app

EXPOSE 5000
EXPOSE 5001

And in my docker-compose file (network is included due to another container):

version: '2'
networks:
  default:
    ipam:
      driver: default
services:
  app:
    image: graphql
    volumes:
       - ../:/https/
    env_file: 
       - ../env.secrets
    ports:
      - "5000:5000"
      - "5001:5001"
    networks:
      - default        

My appsettings.json file:
{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "Urls": "http://*;https://*"
}

If I run my app outside docker and use postman I can access my GraphQL endpoint without any problems and do my queries: 'http://localhost:5000/graphql'

However that is not the case when I run it inside a container. I am sure my ports are configured correctly.

If I run docker container ls I see the following, which looks right: Docker container list

Solution

  • I got it working in Postman. I changed my ports accordingly:

    5000-5001/tcp, 0.0.0.0:5000->80/tcp

    So my port mapping in my compose file is changed to:

    services:
  app5:
    image: graphql-app5-demo
    volumes:
       - ../:/https/
    env_file: 
       - ../env.secrets
    ports:
       - 5000:80
    networks:
      - default

    And my postman endpoind URL: "http://localhost:5000/graphql"

    Although I really wants to not use port 80 here, but rather use the same port as 5000.