Conflict with other dockers on the same vps machine

[podionne]

Hello everyone,

Let's say that in my example, my VPS IP address is 10.11.12.13.

I have multiple dockers running on my VPS machine and one docker uses port 80 already.
They all use different ports so I can access each docker app like that: 10.11.12.13:{port}
When I run learninglocker2-docker with docker-compose, it seems that it's expecting to run on port 80, so I cannot access like that 10.11.12.13:3000.
If it's possible, how do I change the config?

Much thanks in advance!