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