Variables

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How to declare a variable

Variables in NGINX are similar to variables in other programming languages.
The set directive can be used to declare new variables anywhere within the configuration file:

Variables can be of three types

  • String
  • Integer
  • Boolean

Example 1.

Whenever nginx.conf is modified:
  1. Run sudo nginx -t to ensure there are no errors.
  1. Run sudo nginx -s reload to reload the configuration.

Example 2.

The variables I demonstrated here are embedded in the ngx_http_core_module.
For a variable to be accessible in the configuration, NGINX has to be built with the module embedding the variable.

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