It’s been a cumbersome activity to create new virtual machines with the software stack installed and configured properly. You can always use tools like KickStart to automatically install the operating system and then install other software as needed.
Configurations of specific application is a complex activity since it may involve manual activity of database configuration or application configuration.
Solution introduced by VMware
Template: a pre-developed VM used to make new VM with a similar Software Stack, Configurations.
VMware ESX Server templates can be a time-saving for virtualization administrators as they allow you to clone, convert(Live VMs) and deploy virtual machines.
You can pick and configure every piece of software you will need into a template, and clone it to new instances whenever needed. It’s not only easier but also much faster.
Convert To Template
It can be “Clone to Template” and “Converted into Template”.
Clone to Template
Live Virtual Machine
Live VM can only be “Clone to Template”; it cannot be Converted into Template.
Convert Template into VM
Select a Template->Right Click-> Convert to a Virtual Machine
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