Refactoring: Change logic to use template host defined in the config.rb
Refactoring: Remove unnecessary processing
Refactoring: change zabbix action name to use zabbix hostgroup name
Refactoring: Change method name to recreate_system_command from create_action_command
Refactoring: Fix to use Instance variables
Refactoring: Fix to use Constant
Change type of key name from Symbol to String to get valid value from zabbix API response