When you run your application on the public network, you need an infrastructure such as networks, Virtual Machines (VMs), and storage. Obviously, companies borrow or build their own data center to prepare those infrastructures, and then hire data center engineers and operators to monitor and manage those resources.
However, purchasing and maintaining those assets requires a large capital expense as well as an operational expense for data center engineers/operators. You also need a lead time to fully set up those infrastructures, such as buying a server, mounting to a data center rack, cabling a network, and then the initial configuration/installation of the OS and so on.
Consequently, rapidly allocating an infrastructure with appropriate resource capacity is one of the important factors that dictates the success of your business.
To make infrastructure management...