I'm a new unRaid user just setting this up for the first time on a brand new installation of 7.0.1, and making heavy use of this thread in order to do so.
There hasn't been much activity here for a while, so I just wanted to drop in to confirm that after a few false starts I have it up and running succesfully on 7.0.1.
In case anyone else is in a similar position, the main roadblocks I encountered were:
1. The fact that we now need to add extra lines to the script to enable file permissions is easy to miss initially (well I did anyway!), as it in these later posts. For avoidance of doubt, I'll reiterate what others have already said above - add this (or equivalent) to the go file after the initial install lines
chmod a+x /usr/local/emhttp/webGui/event/starting/fetch_key
chmod a+x /usr/local/emhttp/webGui/event/started/delete_key
chmod a+x /usr/local/emhttp/webGui/event/stopped/fetch_key
2. My passphrase had hyphens in it - worked fine for initial encrpytion in unRaid, but it didn't when passed through from the keyfile. I used the "Change Encryption Unlock Key" plugin to help troubleshoot that by testing with a temporary short plain passphrase instead.