Docker image for a Mu Haskell service

You can use the example Dockerfile as a starting point. There are a few elements you need to replace:

The lts version (line 1) should point to the same LTS release you are using in your stack.yaml file.
The folder in the final image is here set to mu-docker-example (lines 7 and 9). You may want to change this.
This Dockerfile exposes port 8080, since that is the one used by the example application.
The command in line 17 is made out of the folder from the current point and the name of the executable.