How to implement PHP-FPM worker process management and monitoring in Nginx?

To implement PHP-FPM worker process management and monitoring in Nginx, follow these steps:

Install PHP-FPM: Firstly, you need to install PHP-FPM on your server. Use the package manager specific to your operating system (e.g., apt-get, yum, etc.) to install PHP-FPM.
Configure PHP-FPM: Open the PHP-FPM configuration file (usually located at /etc/php/{version}/fpm/pool.d/www.conf) and modify the settings as per your requirements. You can adjust parameters like the number of worker processes, maximum requests per process, etc. Save the file and exit.
Restart PHP-FPM: After making changes in the configuration file, restart the PHP-FPM service using the command sudo service php{version}-fpm restart, replacing {version} with your PHP version.
Configure Nginx: Open the Nginx configuration file (usually located at /etc/nginx/nginx.conf or /etc/nginx/conf.d/default.conf) and add the following lines inside the http { ... } block:

location ~ \.php$ {
    fastcgi_pass unix:/var/run/php{version}-fpm.sock;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    include fastcgi_params;
}

Make sure to replace {version} with your PHP-FPM version.

Test Nginx Configuration: Run the command sudo nginx -t to verify the syntax of your Nginx configuration. If there are no errors, proceed to the next step. Otherwise, review and fix any configuration issues.
Restart Nginx: After verifying the configuration, restart the Nginx service using the command sudo service nginx restart.
Monitoring PHP-FPM: To monitor your PHP-FPM worker processes, you can use tools like php-fpm-status, pmstatus, or php-fpm_exporter. These tools provide statistics and metrics about the PHP-FPM processes, including the number of active/idle processes, request durations, etc.

Choose the monitoring tool that best suits your needs, and follow its documentation to install and configure it.

By following these steps, you can implement PHP-FPM worker process management and monitoring in Nginx.