Using Nginx ngx_http_mirror_module for Traffic Mirroring: Installation, Configuration, and Examples
This article demonstrates how to copy production traffic to a pre‑release or test environment using Nginx's ngx_http_mirror_module, covering installation via YUM, configuration snippets, request‑body handling, and useful command‑line tools for managing and monitoring Nginx processes.
The article explains how to copy production traffic to a pre‑release or test environment using Nginx’s ngx_http_mirror_module , outlining the benefits of traffic mirroring such as functional verification, performance testing, and issue diagnosis.
It provides step‑by‑step instructions for installing Nginx via YUM repositories, including the repository configuration file and the commands to install, start, stop, reload, and manage Nginx processes.
The guide describes the default nginx.conf layout and shows how to enable the mirror module, with example configuration blocks that demonstrate basic mirroring, request‑body handling, and upstream definitions for multiple back‑ends.
Additional sections cover building Nginx from source with custom modules, using mirror and mirror_request_body directives, and include useful command‑line snippets for monitoring processes and connections.
Finally, it lists official Nginx documentation links and third‑party resources for further reading.
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