docker-compose to run django with mongodb

Question

I am facing problem using docker-compose to link a django container with postgres and mongo containers? I am trying to use \"docker-compose up\" which starts up the mongo and po

Answer 1

I ran into a similar problem but with another service (not MongoDB). I'm not sure of what I'm doing wrong but this is how I could solve it :

import os
import mongoengine

MONGODB_HOST = os.environ.get('DB2_PORT_27017_TCP_ADDR', '127.0.0.1')
mongoengine.connect(host=MONGODB_HOST)

• With DB2 being the name of your service in docker-compose.yml
• 27017 being the port of the exposed service.
• More about docker-compose environment variables
• I'd put that in my settings file. But you are free to put it wherever you think it's appropriate depending on your project architecture

UPDATE

Now docker-compose containers are reachable by other services using a hostname similar to their alias. link documentation :

Containers for the linked service will be reachable at a hostname identical to the alias, or the service name if no alias was specified.

And that way you can connect to MongoDB like this:

import mongoengine

mongoengine.connect(host="db2")