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view xml/en/docs/faq/variables_in_config.xml @ 578:b4e04fc1070a
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author | Ruslan Ermilov <ru@nginx.com> |
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date | Tue, 10 Jul 2012 12:42:35 +0000 |
parents | ec4626d04879 |
children | be54c443235a |
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<!DOCTYPE article SYSTEM "../../../../dtd/article.dtd"> <article name="Is there a proper way to use nginx variables to make sections of the configuration shorter, using them as macros for making parts of configuration work as templates?" link="/en/docs/faq/variables_in_config.html" lang="en"> <section> <para> <initial>Q:</initial> Is there a proper way to use nginx variables to make sections of the configuration shorter, using them as macros for making parts of configuration work as templates? </para> <para> </para> <para> <initial>A:</initial> Variables should not be used as template macros. Variables are evaluated in the run-time during the processing of each request, so they are rather costly compared to plain static configuration. Using variables to store static strings is also a bad idea. Instead, a macro expansion and "include" directives should be used to generate configs more easily and it can be done with the external tools, e.g. sed + make or any other common template mechanism. </para> </section> </article>