Docker: RCON Passthru doesn't work with dockerized Instances

[mygrexit]

Bug Report

System Information

• Ubuntu 18.04.4 LTS

• v1.9.6.4, built 06/03/2020 14:05

• Mainline release stream

I confirm:

• [x] that I have searched for an existing bug report for this issue.
• [x] that I am using the latest available version of AMP.
• [x] that my operating system is up-to-date.

Symptoms

I'm trying to enable RCON Passthru on a CS:GO Server but AMP doesn't tell Docker to publish/expose the needed port (7777).

The only way to use RCON with a dockerized instance is by using the console in the web panel.

This bug has been reported in Discord and PhonicUK confirmed it. I thought it would be a good idea to report it here, that way i will get notified when it has been fixed.

Reproduction

Install AMP, install docker, add the amp user to the docker group, enable dockerizing of game servers (New Instance Defaults), install a SRCDS game server, enable rcon passthru, restart AMP, try to use it.

[PhonicUK]

This should now work as of the latest changes. Try out the CI build (or nightly as of tomorrow)