PostgreSQL for Docker.
$ docker run -d -p 5432:5432 -e POSTGRESQL_USER=test -e POSTGRESQL_PASS=oe9jaacZLbR9pN -e POSTGRESQL_DB=test orchardup/postgresql
da809981545f
$ psql -h localhost -U test test
Password for user test:
psql (9.1.9, server 9.1.3)
Type "help" for help.
test=#
(Example assumes PostgreSQL client is installed on Docker host.)