Port issue with multiple Reflex Docker containers

[chimeracle]

Is there anyone using Reflex for multiple small apps and hosting them in docker containers on the same host? How do you handle the issue where each one wants the same ports? Can the backend be changed from 8000? can the frontend be changed from 3000?

[masenf]

Check out the config knobs / environment vars BACKEND_PORT, FRONTEND_PORT and API_URL, they should let you change where the front and back are listening. The API_URL currently needs to point to the publicly accessible location of the backend, so if you're running in docker, this would have to be your external hostname.

Maybe something like

ENV BACKEND_PORT=8001 FRONTEND_PORT=3001 API_URL=http://example.com:8001
CMD reflex run