After installing the latest stable for passenger-enterprise, my server faced an unknown error:
Required key 'ust_router_address' is missing (-1: Unknown error)
The effect on the server was surprising: the apps would start (and nginx restart command returned an ok) but the users would receive a "403 Forbidden". Looking at the log it appeared that my user was apparently unable to access the app root folder (/var/www/../public) despite correct (and unchanged! permissions).
I contacted support but no word yet, and as a temporary workaround I reverted to the previous version (via
sudo apt-get install passenger-enterprise=1:5.1.8-2~trusty1 and a nginx restart) which works seamlessly.
Any insight much appreciated, when I look at the doc
ust_router_address is supposed to be set by passenger automatically.
Thanks in advance.