Terraform Classroom Series – 17/Sep/2019

Terraform Setup

1. Install Terraform:
   • Windows: choco install terraform -y
   • Other:
     • Download terraform zip from https://www.terraform.io/downloads.html
     • unzip the file
     • Add folder of terraform to Environment variable PATH
     • note: Look at packer installation
   • Install Visual Studio Code
   • Add Terraform Extension to Visual Studio Code

Basics of Terraform DSL

• Input for terraform is folder/directory
• Terraform will pick all the files in the input folder with *.tf
• Provider Syntax

provider "<provider name>" {
    arg1    = value1
    ...
    ...
    argn    = valuen
}
####### Example ###########

provider "aws" {
    region      = "us-west-2"
    secret_key  = "jkdsahfkjadsfhkjasdfhdkjahfdakj"
    access_key  = "kjsdhfkjsdfkjhdsf"
}

• Resources Syntax

resource "<resource type>" "<your name for this resource>" {
    arg1    = value1
    ...
    ...
    argn    = valuen
}

############### Example ###############

resource "aws_instance" "mywebserver" {
    ami             = "<ami id>"
    instance_type   = "t2.micro"
}

Execution Steps

1. Create a directory with name "hello-aws"
2. create a file inside directory "hello-aws" named "main.tf" with above contents

terraform init <dirpath of hello-aws>
terraform validate <dirpath of hello-aws>
terraform apply <dirpath of hello-aws>