Terraform Basics

Example: Let's assume AWS is the Provider for the entire blog

access key, secret key -- authentication

terraform init #Initializes the working directory

Whatever is required to run a terraform script, the "Init" helps to get all the information.

terraform plan #create the plan /ex: the blueprint of a house

For Example, we have a 2-tier application --- RDS, EC2, VPC, SG, SUBNET, RT sequence of code doesn't matter in terraform. Terraform auto-detects the sequence in the "plan" section as VPC, SUBNET, RT, SG, EC2, RDS

terraform apply # creates resources on AWS

terraform destroy # Destroys the resources created.

Terraform script doesn't destroy the resources which are manually created on the AWS console, It only destroys the resources created via terraform script.

Resources are nothing but EC2, VPC, Subnet, and Security Group...

Terraform Installation

Go to https://developer.hashicorp.com/terraform/downloads

Download the AMD version of Terraform on your local machine

Extract the .zip download, copy the location of the extracted file

Go to Windows properties --advance settings---env variables--add the path

Check if Terraform was successfully installed. Go to CMD -> terraform -version

Now the environment variable is set successfully.

go to registry.terraform.io for the best terraform documentation