Adding support postgis

Description

It seems to me that it’s worth asking users if they want to see the possibility of using postgis in this project. I tried to install postgis and gdal, but I did not succeed.

If I’m not mistaken, is it enough to find a good example of postgis on dockerhub, which is maintained for a long time so that it can be included in this project?

Rationale

Gis is one of the django apps that comes out of the box. This is the best geo framework from all that I’ve come across. I also think that cookiecutter is the best boilerplace for Django, so it would not be bad to unite them 😃

[sww314]

I use the postgis and geo-django on most of my projects. The Django docker images requires a few mods to install the required libraries. I swap the Postgres image for this one: https://hub.docker.com/r/mdillon/postgis/ and this Dockerfile for Django. https://gist.github.com/sww314/4638d2605bc1400b000f7d1e73d3d793

[browniebroke]

Adding support for Docker seems pretty simple, yes, but I feel like think might get a bit more complicated to cover the other cases:

• Developing locally without Docker
• Deploying to prod without Docker: Heroku, etc…

Especially with regards to what one needs to do on the DB side of things when the DB is configured outside of the template.