Teamsort

Teamsort is a web application that generates teams for CSGO based on a list of players with ranks. See usage with example data on teamsort.fly.dev.

Teamsort uses a Minizinc model and a solver (CBC) to find the most balanced teams based on the players ranks.

Runnig Teamsort

Start app with docker: docker run -p 4000:4000 -e FLY_APP_NAME=teamsort -e SECRET_KEY_BASE=put-a-64-bytes-long-string-here ghcr.io/ringvold/teamsort

Go to http://localhost:4000

Note:

• FLY_APP_NAME is required for now as the images is made for Fly.io, but this can be changed in the future to not be required.
• SECRET_KEY_BASE need to be at least 64 bytes long or Phoenix will complain and the app will not start. This is a requirement of Phoenix. Because security.

The application can be run normaly with mix phx.server or as a elixir release but the correct minizinc and cbc setup can be hard to get right so the docker image is recommended.

Minizinc model

The Minizinc model can be found in priv/model.mzn.

The model is heavily based on this answer on StackOverflow by Axel Kemper. Thanks to him for the initial solution and to my colleague Jørgen Granseth for finding it and making modifications to fit this use case. 🙇‍♂️