How to switch old software stack with Lighttpd web server to the latest one with Nginx on SolusVM master/slave node?

Applicable to:

Connect to the SolusVM Master/slave server over SSH.
Download and execute the script to switch to the latest stack:

# curl -o svmupgradestack.sh https://raw.githubusercontent.com/solusvm-support/helpers/master/svmupgradestack.sh && sh svmupgradestack.sh
In the script prompt select the type of node - Master or Slave.
Wait until the script is finished.

If you would like to perform the switch manually - use instruction below:

Move out you the current system PHP binary and update svmstack-php package:

# yum update svmstack-php && mv /usr/bin/php /usr/bin/backup-php
Create a link to SolusVM PHP binary:

# ln -s /usr/local/svmstack/php/bin/php /usr/bin/php
Install the SolusVM repository:

# yum install solusvm-release
Stop and disable Lighttpd web server:

# service lighttpd stop
# chkconfig lighttpd off
Install Nginx web server and legacy configuration:

For Master server:

# yum install svmstack-nginx svmstack-nginx-legacy-master-config

For Slave server:

# yum install svmstack-nginx svmstack-nginx-legacy-slave-config
Enable svmstack-* services:

# chkconfig svmstack-nginx on
# chkconfig svmstack-fpm on
Start services:

# service svmstack-nginx restart
# service svmstack-fpm restart