In this illustrious app, we illustrate the capabilities of Django to connect to Redis and Postgres with the help of Docker and Docker Compose.

Assuming that you have those two things (Docker & Compose) installed, all you have to do is clone this repository, change into this repository's directory, and then run docker-compose up. Docker Compose will take care of the rest! Once it's done its magic, you'll get a notification like this in your terminal:

web_1       | Starting development server at http://0.0.0.0:8000/
web_1       | Quit the server with CONTROL-C.

Open up a web browser and type localhost:8000 to see the Hello World Django app. You will note that there's a "lucky number", which stays the same for ten seconds after which it is first loaded. If you reload before that ten seconds is up, you will get the same number. Afterwards it changes to another random number.

You might note that it complains about migrations not being run. If you want to test the capabilities of the Postgres connection, open another terminal window and navigate to the repo directory if you're not already there. Then run docker-compose exec web pipenv run ./manage.py migrate. It will run the the migrations. If you decide to stop (press CTRL+C) and then restart (docker-compose up) the app, you will see the warnings are gone. If you'd like to confirm that the database is indeed migrated in Postgres, Run docker-compose exec postgres psql -U postgres. It will enter you into the Postgres terminal. From there you run \c hello to connect to the database and then \d to see that the various tables in the migration are present.