Log in to Postgres:

sudo su postgres
psql

Create a database called registry with the password registry:

create database registry;
CREATE USER registry WITH PASSWORD 'registry';
GRANT ALL PRIVILEGES ON DATABASE "registry" to registry;

Create a database called streamline with the password streamline:

create database streamline;
CREATE USER streamline WITH PASSWORD 'streamline';
GRANT ALL PRIVILEGES ON DATABASE "streamline" to streamline;