Docker Desktop on macOS Mojave does not like localhost in port mapping

[ebegoli]

In the readme file, the example for how to run prosody with all ports mapped states the following command:

docker run -d \ -p 5222:5222 \ -p 5269:5269 \ -p localhost:5347:5347 \ -e LOCAL=romeo \ -e DOMAIN=shakespeare.lit \ -e PASSWORD=juliet4ever \ -v /data/prosody/configuration:/etc/prosody \ -v /logs/prosody:/var/log/prosody \ -v /data/prosody/modules:/usr/lib/prosody-modules \ prosody/prosody:0.9

Running this on Docker Desktop Version 2.0.0.3 (31259) on macOS Mojave results in a message:

docker: invalid publish opts format (should be name=value but got '5222:5222').
See 'docker run --help'.

This is Docker's standard message when something does not work with container to host port mapping. I examined the issue, and tried to edit every line in the example, and when I removed the localhost, prosody launch worked:

docker run -d \ -p 5222:5222 \ -p 5269:5269 \ -p 5347:5347 \ -e LOCAL=romeo \ -e DOMAIN=shakespeare.lit \ -e PASSWORD=juliet4ever \ -v /data/prosody/configuration:/etc/prosody \ -v /logs/prosody:/var/log/prosody \ -v /data/prosody/modules:/usr/lib/prosody-modules \ prosody/prosody:0.9