Continuing with our migration to Nginx (see previous posts here and here), the next set of servers to move were a load balanced group of PHP servers. Each server consists of an http server on port 80, an https server on port 443 and an upstream PHP server on port 8000.
- 1 to n upstream PHP servers can be configured, either local or remote
- configuration supports both http (80) and https (443)
- SSL is terminated before being passed to the upstream server
- PHP upstream server uses PHP5-FPM via a local socket
- static files are served directly via Nginx and are set to max expires
There are also some future optimizations I’m currently looking at:
- enable the proxy cache (http://people.adams.edu/~cdmiller/posts/nginx-reverse-proxy-cache/)
- serve static files directly from the proxy server, rather than via the upstream server
