Docker 1 container tryton for 6 containers postgreSQL

Guys I need some help,

I don’t have much knowledge of Docker,

more need to present 1 docker tryton to 6 other postgres docker containers

Can someone give a tip?

Not sure if I understand the question because running 6 database servers is quiet a lot. Maybe you just need to run 1 database server and create 6 database inside.
But if you want to run multiple docker images, you can use Docker Compose.