Changing default Traefik and Postgres ports?

[marcfon]

What is the correct way to change the ports Traefik and Postgres run on? The current defaults conflict with other services I have running.

So far I've been able to update Traefik using the command below but wasn't able to the change Postgres post. Could it be that it's hard coded?

export TRAEFIK_DASHBOARD_PORT=8999