Infrastructure as code (IaC) is the process of managing and provisioning computer data centers through machine-readable definition files, rather than physical hardware configuration or interactive configuration tools.The IT infrastructure managed by this process comprises both physical equipment, such as bare-metal servers, as well as virtual machines, and associated configuration resources.The definitions may be in a version control system.It can use either scripts or declarative definitions, rather than manual processes, but the term is more often used to promote declarative approaches.