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# run psql database in docker
sudo docker run --name <container-name> -p 5432:5432 -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=password postgres

# find more information about docker containers such as ip, port
sudo docker ps

# log into database server
psql -h <host-address> -p <port> -U <username> --password

# list databases there
\l

# to bring a container up such as postgres, do this
docker start <container-name>