To get started, create your docker image:

docker build -t lisk-sdk --build-arg user_name=$USER --build-arg user_id=$UID .

Now bring everything up:

docker-compose up -d

You'll now have Postgres running and a development environment container running To see: docker ps

You can enter the environment with docker exec -it ( name or id of container here ) /bin/bash

And you should be able to access Postgres from within the environment:

psql -d lisk_dev -h db -U lisk