เขียน Terraform ตั้งค่า IAM Amplify ฉบับเข้าใจง่าย

mkdir <project_name> # สร้างโฟลเดอร์
cd <project_name> # เข้าโฟลเดอร์
touch main.tf # สร้างไฟล์
touch variables.tf # สร้างไฟล์
touch version.tf # สร้างไฟล์

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 4.0"
    }
  }
}

variable "role_name" {
  description = "Role Name"
  type        = string
  default     = "amplify-demo-role"
}

data "aws_iam_policy_document" "assume_role" {
  
}

data "aws_iam_policy_document" "assume_role" {
  statement {
    effect  = "Allow"
    actions = ["sts:AssumeRole"]

    principals {
      type        = "Service"
      identifiers = ["amplify.amazonaws.com"]
    }
  }
}

data "aws_iam_policy_document" "assume_role" {
  statement {
    effect  = "Allow"
    actions = ["sts:AssumeRole"]

    principals {
      type        = "Service"
      identifiers = ["amplify.amazonaws.com"]
    }
  }
}

resource "aws_iam_role" "this" {
  name                = var.role_name
  assume_role_policy  = join("", data.aws_iam_policy_document.assume_role.*.json)
}

terraform init
 
Initializing the backend...
 
Initializing provider plugins...
- Finding hashicorp/aws versions matching "~> 4.16"...
- Installing hashicorp/aws v4.17.0...
- Installed hashicorp/aws v4.17.0 (signed by HashiCorp)
 
Terraform has created a lock file .terraform.lock.hcl to record the provider
selections it made above. Include this file in your version control repository
so that Terraform can guarantee to make the same selections by default when
you run "terraform init" in the future.
 
Terraform has been successfully initialized!
 
You may now begin working with Terraform. Try running "terraform plan" to see
any changes that are required for your infrastructure. All Terraform commands
should now work.
 
If you ever set or change modules or backend configuration for Terraform,
rerun this command to reinitialize your working directory. If you forget, other
commands will detect it and remind you to do so if necessary.

terraform validate
 
Success! The configuration is valid.

terraform apply
 
Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create
Terraform will perform the following actions:
  # aws_iam_role.this will be created
  + resource "aws_iam_role" "this" {
      +  id                            = "amplify-demo-role-XXXXXXXXXXXXXX"
      +  policy_arn                          = "arn:aws:iam::XXXXXXXX:role/amplify-demo-role"
      +  tagroles                          = "amplify-demo-role"
    }
Plan: 1 to add, 0 to change, 0 to destroy.
 
Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.
 
  Enter a value:
 

Enter a value: yes
 
aws_iam_role.this: Creating...
aws_iam_role.this: Still creating... [10s elapsed]
aws_iam_role.this: Still creating... [20s elapsed]
aws_iam_role.this: Still creating... [30s elapsed]
aws_iam_role.this: Creation complete after 36s [id=i-01e03375ba238b384]
 
Apply complete! Resources: 1 added, 0 changed, 0 destroyed.