Terraform Overview

Terraform is an open source software for Infrastructure as Code. It uses the Hashicorp Configuration Language, also known as HCL. You define what your infrastructure is supposed to look like using one or more HCL files. Then you use Terraform commands to process the files. Terraform will use providers to communicate with various platforms to perform the needed operations. These providers can include Azure, AWS, VMWare ESX, and more. 

There are four basic commands that Terraform uses to process the files. These commands are:

terraform init
terraform plan
terraform apply
​terraform destroy