Scenario: Create a EC2 machine in the VPC already written in the template

• Refer Here
• In Terraform we can reuse any terraform with modules and also refer here
• Lets convert our vpc into a module
• Also refer here
• Use the following syntax

module "myvpc" {
  source        = "./modules/myvpc"

  vpccidr       = "192.168.0.0/16"
  
}

• Terraform also provides a way of sharing modules to community using terraform registry
• Now lets find the module to create vpc and we found this
• Lets create a new folder with provider.tf and main.tf. Add aws provider to provider.tf and in main.tf add the following

module "vpc" {
  source = "terraform-aws-modules/vpc/aws"
  version = "2.38.0"

  name = "my-vpc"
  cidr = "10.0.0.0/16"

  azs             = ["us-west-2a", "us-west-2b", "us-west-2c"]
  private_subnets = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
  public_subnets  = ["10.0.101.0/24", "10.0.102.0/24", "10.0.103.0/24"]


  tags = {
    Terraform = "true"
    Environment = "dev"
  }
}

• Execute

terraform init 
terraform apply .

• Terraform has an Enterprise version Terraform Enterprise and also Refer here