Wordpress Nginx Bash Setup Script

This Bash script automates the setup of a WordPress site on an Nginx server. Follow the steps below for a seamless installation:

Usage:

1. Run the script:

   bash script.sh

2. Enter the desired site name, site URL (domain or server IP), WordPress database name, WordPress database user, and WordPress database password as prompted.

Installation Steps:

1. Set up A Record:

   • Manually configure an A record for the specified site name on your domain registrar, pointing to the host's IP.

2. Review the Automated Installation:

   • The script will handle the following steps automatically:

   Update and Upgrade:

   sudo apt update
   sudo apt upgrade -y

   Create Site Directory:

   sudo mkdir -p /var/www/$site_name

   Download and Extract WordPress:

   cd /tmp
   wget https://wordpress.org/latest.tar.gz
   sudo tar xf latest.tar.gz -C /var/www/
   sudo mv /var/www/wordpress /var/www/$site_name
   rm -rf /tmp/latest.tar.gz*
   cd /var/www/

   Set Ownership and Permissions:

   sudo chown -R www-data:www-data /var/www/$site_name
   sudo chmod -R 755 /var/www/$site_name

   Install Nginx, MySQL, PHP, and Utilities:

   sudo apt install -y nginx mysql-server php-fpm php-mysql

   Initialize MySQL and Create WordPress Database/User:

   sudo mysql_secure_installation
   sudo mysql -u root -p <<MYSQL_SCRIPT
   CREATE DATABASE $db_name;
   CREATE USER '$db_user'@'localhost' IDENTIFIED WITH 'mysql_native_password' BY '$db_password';
   GRANT ALL PRIVILEGES ON $db_name.* TO '$db_user'@'localhost';
   ALTER USER '$db_user'@'localhost' IDENTIFIED WITH 'mysql_native_password' BY '$db_password';
   FLUSH PRIVILEGES;
   EXIT;
   MYSQL_SCRIPT

   Configure Nginx Virtual Host:

   echo "server {
   listen 80;
   server_name $site_url;
   
   root /var/www/$site_name/wordpress;
   index index.php index.html index.htm;
   
   location / {
       try_files \$uri \$uri/ /index.php?\$args;
   }
   
   location ~ \.php$ {
       include snippets/fastcgi-php.conf;
       fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
       fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name;
       include fastcgi_params;
   }
   
   location ~ /\.ht {
       deny all;
   }
   }" | sudo tee /etc/nginx/sites-available/$site_name

   Create a Symbolic Link to sites-enabled:

   sudo ln -s /etc/nginx/sites-available/$site_name /etc/nginx/sites-enabled/
   sudo systemctl restart nginx

   Install Certbot, Allow Ports, Configure Certbot, and Set Up Cronjob:

   sudo apt install -y python3-certbot-nginx
   sudo ufw allow 80
   sudo ufw allow 443
   sudo certbot --nginx
   (crontab -l 2>/dev/null; echo "0 0 1 * * certbot --nginx renew") | crontab -