Advanced PSGI usage

LLNG is build on Plack, so it can be used with any compatible server:

• Starman
• Twiggy
• Twiggy::Prefork
• Starman
• uWSGI using uWSGI PSGI plugin
• Alternative: Node.js handler can be used as FastCGI server, only for application protection

uWSGI and Node.js handler may provide the highest performance.

A llng-server.psgi is provided in example directory. It is designed to replace exactly FastCGI server. You can use it :

• with a FCGI Plack server, but you just have to change llng-fastcgi-server engine (in /etc/default/llng-fastcgi-server) to have the same result
• with a HTTP Plack server, not yet tested
• with uWSGI (see below)

You can also replace only a part of it to create a specialized FastCGI server (portal,…). Look at llng-server.psgi example and take the part you want to use.

There are also some other psgi files in examples directory.

See also High performance handler for Nginx

You must install uWSGI PSGI plugin. Then for example, launch llng-server.psgi (simple example):

uwsgi --plugins psgi --socket :5000 --psgi e2e-tests/llng-server.psgi

You will find in LLNG Nginx configuration files some comments that explain how to configure Nginx to use uWSGI instead of LLNG FastCGI server.