I\'ve done a new install of nginx 1.6.3 and passenger 5.0.15 on Ubuntu 14.04 from source in order to add tracing components from AppNeta for my ROR 4.2 app on one of my serv
I'm running Passenger in Nginx integration mode, on Ubuntu 20.04 and I've installed it via apt from the official repos.
What worked for me was adding this to /etc/nginx/conf.d/mod-http-passenger.conf :
passenger_instance_registry_dir /tmp;
Restarting passenger the Capistrano way from the command line should now work:
$ passenger-config restart-app --ignore-app-not-running
If this works, Capistrano deployments should now work again.