Nginx

Current Info

https://www.phusionpassenger.com/documentation/Users%20guide%20Nginx.html

SECRET_KEY_BASE in Passenger 5.0

Need this line in your nginx site config:

passenger_env_var SECRET_KEY_BASE d324db3c6eb35e2e7... ;

NOTE the semicolon at the end.

Passenger pre start

add something like this to the end of the sites config, after (outside of) the server block:

passenger_pre_start http://mysite.com;

SSL

Use this:

https://mozilla.github.io/server-side-tls/ssl-config-generator/

To set up Diffie-Hellman parameter:

openssl dhparam -out dhparam.pem 4096

OCSP Stapling is probably not worth it.

Restart Rails app in Passenger

https://www.phusionpassenger.com/documentation/Users%20guide%20Nginx.html#_redeploying_restarting_the_ruby_on_rails_application

touch /webapps/mycook/tmp/restart.txt

Passenger will automatically restart the application during the next request.

Useful Passenger Tools

passenger-status

passenger-memory-stats

Old Info

http://excid3.com/blog/setting-up-ubuntu-12-04-with-ruby-1-9-3-nginx-passenger-and-postgresql-or-mysql/

Install Nginx with Passenger

Since we’ll be using Nginx for serving our application, we’re going to install it using the Passenger installer. Nginx modules need to be compiled into nginx, unlike Apache, so we can’t just install the package from the PPA.

sudo gem install passenger
sudo passenger-install-nginx-module
# Choose "download, compile, and install Nginx for me"
# Accept defaults for any other questions it asks you

Upgrading Nginx

sudo gem update passenger
sudo passenger-install-nginx-module
# go ahead and install latest nginx with ruby support

This will overwrite existing files in place. Then you will need to update the "passenger_root" directive in nginx.conf to point to the latest passenger gem.

Confirm server version with this:

/opt/nginx/sbin/nginx -v