You can copy and paste the following bash script into the startup script area of the Control Panel.
It will install all of necessary packages to run WordPress, generate and import database credentials, and open the necessary firewall ports.
#/bin/sh
install_dir="/var/www/html"
#Creating Random WP Database Credenitals
db_name="wp`date +%s`"
db_user=$db_name
db_password=`date |md5sum |cut -c '1-12'`
sleep 1
mysqlrootpass=`date |md5sum |cut -c '1-12'`
sleep 1
ftp_password=`date |md5sum |cut -c '1-12'`
#### Install Packages for https and mysql
yum -y install httpd httpd-devel
yum -y install mysql mysql-server mysql-devel
yum -y install lynx vsftpd
##### Open firewall for http and SSL
iptables -F
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
/etc/init.d/iptables save
/etc/init.d/iptables restart
#### Start http
/etc/init.d/httpd start
chkconfig httpd on
#### Start mysql and set root password
/etc/init.d/mysqld start
chkconfig mysqld on
/usr/bin/mysql -e "USE mysql;"
/usr/bin/mysql -e "UPDATE user SET Password=PASSWORD($mysqlrootpass) WHERE user='root';"
/usr/bin/mysql -e "FLUSH PRIVILEGES;"
touch /root/.my.cnf
chmod 640 /root/.my.cnf
echo "[client]">/root/.my.cnf
echo "user=root">/root/.my.cnf
echo "password="$mysqlrootpass>/root/.my.cnf
####Install PHP
yum -y install php php-common php-mysql php-gd php-mbstring php-mcrypt php-xml php-devel
sed -i '0,/AllowOverride\ None/! {0,/AllowOverride\ None/ s/AllowOverride\ None/AllowOverride\ All/}' /etc/httpd/conf/httpd.conf #Allow htaccess usage
/etc/init.d/httpd restart
####Download and extract latest WordPress Package
if test -f /tmp/latest.tar.gz
then
echo "WP is already downloaded."
else
echo "Downloading WordPress"
cd /tmp/ && wget "http://wordpress.org/latest.tar.gz";
fi
/bin/tar -C $install_dir -zxf /tmp/latest.tar.gz --strip-components=1
chown apache: $install_dir -R
#### Set FTP Credentials
echo $ftp_password | passwd apache --stdin
/etc/init.d/vsftpd start
chkconfig vsftpd on
#### Create WP-config and set DB credentials
/bin/mv $install_dir/wp-config-sample.php $install_dir/wp-config.php
/bin/sed -i "s/database_name_here/$db_name/g" $install_dir/wp-config.php
/bin/sed -i "s/username_here/$db_user/g" $install_dir/wp-config.php
/bin/sed -i "s/password_here/$db_password/g" $install_dir/wp-config.php
cat << EOF >> $install_dir/wp-config.php
define('FS_METHOD', 'ftpext');
define('FTP_BASE', '$install_dir');
define('FTP_USER', 'apache');
define('FTP_PASS', '$ftp_password');
define('FTP_HOST', '127.0.0.1');
define('FTP_SSL', false);
EOF
cat << EOF >> $install_dir/.htaccess
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
EOF
chown apache: $install_dir -R
##### Set WP Salts
grep -A50 'table_prefix' $install_dir/wp-config.php > /tmp/wp-tmp-config
/bin/sed -i '/**#@/,/$p/d' $install_dir/wp-config.php
/usr/bin/lynx --dump -width 200 https://api.wordpress.org/secret-key/1.1/salt/ >> $install_dir/wp-config.php
/bin/cat /tmp/wp-tmp-config >> $install_dir/wp-config.php && rm /tmp/wp-tmp-config -f
/usr/bin/mysql -u root -e "CREATE DATABASE $db_name"
/usr/bin/mysql -u root -e "GRANT ALL PRIVILEGES ON $db_name.* to '"$db_user"'@'localhost' IDENTIFIED BY '"$db_password"';"
######Display generated passwords to log file.
echo "Database Name: " $db_name
echo "Database User: " $db_user
echo "Database Password: " $db_password
echo "Mysql root password: " $mysqlrootpass
echo "FTP Password: " $ftp_password
You will not need, but can retrieve the database credentials by tailing the end of the /tmp/firstboot.log file after installation. It is also recommended to remove the /tmp/firstboot.log file upon installation. You will be able to access your installation at http://yourip.
Note: This script is meant to run on CentOS 6. It is not guaranteed to work on CentOS 7.