start kong with kong-database dockr code example

Example 1: kong en docker

$ docker run -d --name kong-database \
                -p 5432:5432 \
                -e "POSTGRES_USER=kong" \
                -e "POSTGRES_DB=kong" \
                postgres:9.6

Example 2: kong en docker

$ docker run -d --name kong-database \
                -p 9042:9042 \
                cassandra:3