Part 1 | Nginx WordPress Replication

Environment

OS: Ubuntu 22.04 LTS

2 Server, with IP:

WP1: 10.10.10.176

WP2: 10.10.10.115

PHP 8.1

Install Nginx + PHP (Run on both server)

apt install nginx -y

Install PHP and needed extensions

apt install php php-{fpm,mysql,curl,xml,zip,mbstring,memcached,intl,pear} -y

If *apache2 also installed, then remove with

apt purge apache2 -y

Testing PHP

Uncomment and change default PHP 7.4 to PHP 8.1

vim /etc/nginx/sites-available/default

location ~ \.php$ {       
                include snippets/fastcgi-php.conf;
                fastcgi_pass unix:/run/php/php8.1-fpm.sock;          

        }

Restart nginx server

systemctl restart nginx

Add info.php for testing

echo "<?php phpinfo();" > /var/www/html/info.php

Access using browser

Remove info.php after succesed access

Setup WordPress (Configure on WP1)

Download latest wordpress version with wget

wget https://wordpress.org/latest.tar.gz

Extract it

tar -xvf latest.tar.gz

After extract, make a new directory for store wordpress file

mkdir /var/www/wp

Copy wordpress file

cp -fR wordpress/* /var/www/wp/

Change owner and group of directory

chown -R www-data. /var/www/wp

Setup Nginx for Accessing WordPress

Change directory to /etc/nginx/sites-available

cd /etc/nginx/sites-available

Copy the default site configuration

cp default wordpress

Edit the wordpress file configuration

vim wordpress

Change as below, change the server_name into your domain name

server {                                                                      
        listen 80;                                                            

        root /var/www/wp;                                                     

        index index.php;                                                      

        server_name yourdomain.com;                                                         

        location / {                                                          
                try_files $uri $uri/ /index.php;                                    
        }                                                                     

        location ~ \.php$ {                                                   
                include snippets/fastcgi-php.conf;                            
                fastcgi_pass unix:/run/php/php8.1-fpm.sock;                   
        }                                                                     
}                                                                             

Save and delete default configuration in /etc/nginx/sites-enabled

rm /etc/nginx/sites-enabled/default

Activate wordpress configuration and restart nginx service

ln -s /etc/nginx/sites-available/wordpress /etc/nginx/sites-enabled/

systemctl restart nginx

WordPress is using database for storing data, you can deploy the database in WP1 and WP2 server and make data replicas/synchronize, or create another server for database only, read instructions here

MariaDB Maxscale with Database Master-Slave

before setup wordpress, you must create database and user for access it, example:

mariadb

MariaDB [(none)]> create database wordpress;
MariaDB [(none)]> grant all privileges on wordpress.* to wpuser@'%' identified by 'wppass';
MariaDB [(none)]> flush privileges;

Setup WordPress from browser, accesss it

Enter your database name, user, password, and database host

Click Run the Installation

Customize your wordpress website data

Finish, with Install WordPress

WordPress successfully installed!!