How to dynamically add modules to Nginx

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Often, after we install Nginx based on the current project situation and business needs, as the business develops, we often add other functional modules to the installed Nginx. When adding function modules to Nginx, Nginx must not be shut down. This involves the question of how to dynamically add modules to the installed Nginx. In this article, we will discuss with you how to dynamically add modules to the installed Nginx.

Dynamically add modules to Nginx

Here we take the installation of the third-party ngx_http_google_filter_module module as an example.

Nginx modules require recompiling Nginx, rather than referencing .so in the configuration file like Apache.

Download the third-party extension module ngx_http_google_filter_module

# cd /data/software/
# git clone https://github.com/cuber/ngx_http_google_filter_module

Check which modules are installed when nginx is compiled and installed

Switch the command line to the directory where the Nginx execution program is located and enter ./nginx -V, as follows:

[root@binghe sbin]# ./nginx -V
nginx version: nginx/1.19.1
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC) 
built with OpenSSL 1.0.2 22 Jan 2015
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx-1.19.1 --with-openssl=/usr/local/src/openssl-1.0.2 --with-pcre=/usr/local/src/pcre-8.37 --with-zlib=/usr/local/src/zlib-1.2.8 --with-http_ssl_module
[root@binghe sbin]#

It can be seen that the parameters used to compile and install Nginx are as follows:

--prefix=/usr/local/nginx-1.19.1 --with-openssl=/usr/local/src/openssl-1.0.2 --with-pcre=/usr/local/src/pcre-8.37 --with-zlib=/usr/local/src/zlib-1.2.8 --with-http_ssl_module

Add the modules that need to be installed and recompile

Add here --add-module=/data/software/ngx_http_google_filter_module

The details are as follows:

./configure --prefix=/usr/local/nginx-1.19.1 --with-openssl=/usr/local/src/openssl-1.0.2 --with-pcre=/usr/local/src/pcre-8.37 --with-zlib=/usr/local/src/zlib-1.2.8 --with-http_ssl_module -–add-module=/data/software/ngx_http_google_filter_module

As above, add all the parameters of Nginx installed previously, and finally add --add-module=/data/software/ngx_http_google_filter_module

After that, we need to compile as follows:

# make //Don't make install, otherwise it will be overwritten

Here, it is important to note that: do not execute the make install command.

Replace nginx binary

# Back up the original nginx execution program# mv /usr/local/nginx-1.19.1/sbin/nginx /usr/local/nginx-1.19.1/sbin/nginx.bak
# Copy the newly compiled nginx executable program to the /usr/local/nginx-1.19.1/sbin/directory# cp /opt/nginx/sbin/nginx /usr/local/nginx-1.19.1/sbin/

Okay, let’s stop here for today! Don’t forget to like, follow and forward so that more people can see it, learn and improve together! !

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