Docker-compose with django could not translate host name “db” to address: Name or service not known

Question

I have currently a system built with docker-compose, it creates a Django application.

Up until now I\'ve used a database inside a container (postgresql) in my testin

Answer 1

Add network, link and depends_on configuration in docker compose file.

example:

  services:
      db:
          build: .
          container_name: db
          networks:
              - djangonetwork
      web:
          build: .
          depends_on:
             - db
          links:
             - db:db
          networks:
             - djangonetwork

  networks:
      djangonetwork:
          driver: bridge