For the guys that want to test this and don't want to mess around with the command line, I made a template off of binxex's old hyra1 which can help you.
Go to the Docker tab and add this : https://github.com/tuxcomputing/unraid-templates in "template repositories" and then Save.
Then Add Container and select the template "hydra2".
You will see the normal hydra1/unraid settings plus a few new ones (see picture).
IMPORTANT: Make sure you set the IP to the internal network IP where your unraid server is located, ie 192.168.11.22 ete in the HOST field.
Everything should be easy from there on.
Annoyances:
- it might not start the first time, you might need to stop-start/restart the container once until it starts off (check the logs!)
-I did not manage to get the hydra icon to show up (i'm a noob)
Security:
I did not add any code except from what binhex already had on hydra1.
All code can be tested on the github link
Bugs:
There are a few, please check the official github here: https://github.com/theotherp/nzbhydra2/issues
Remember that this is still a work in process for the developer and it will take some time before a decent container comes out. (ie. not my fault if your stuff breaks)