Add Postgresql support

[thromera]

Postgresql is a really common setup choice for Database, it would be cool to have it in the builder :)

[manuquentin]

Good idea. Can you make a pull request to integrate it ?

You can also use container from the index with the index like :

db:
        type: index
        image: paintedfox/postgresql
        volumes:
            /data/postgresql/: /data
        environments:
            USER: docker
            PASS: docker
            DB: myDB
        ports:
            5432: 5432

Thanks

[thromera]

I unfortunately don 't have much time. Will look into it later.