Terraform

Installation on mac

brew tap hashicorp/tap
brew install hashicorp/tap/terraform
brew upgrade hashicorp/tap/terraform
 
 
terraform -help
terraform -v

Add a terraform file

provider "aws" {
  profile = "default"
  region  = "eu-west-1"
}




# https://registry.terraform.io/providers/hashicorp/aws/latest/docs
# https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/instance


data "aws_ami" "ubuntu" {
  most_recent = true

  filter {
    name   = "name"
    values = ["ubuntu/images/hvm-ssd/ubuntu-jammy-22.04-amd64-server-*"]
  }

  filter {
    name   = "virtualization-type"
    values = ["hvm"]
  }

  owners = ["099720109477"] # Canonical
}

resource "aws_instance" "app_server" {
  ami           = data.aws_ami.ubuntu.id
  instance_type = "t2.micro"

  tags = {
    Name = "TrrInstance"
  }
}

Run terraform init in your project and to deploy these run terraform apply. To delete these resource that were created terraform destroy

Terraform also takes a json config file main.tf.json

This is especially useful when generating Terraform configurations programmatically (e.g., using tools like CDKTF) or integrating Terraform with systems that prefer JSON.

 
{
  "provider": {
    "aws": {
      "region": "us-east-1"
    }
  },
  "resource": {
    "aws_instance": {
      "example": {
        "ami": "ami-0c55b159cbfafe1f0",
        "instance_type": "t2.micro",
        "tags": {
          "Name": "MyInstance"
        }
      }
    }
  }
}

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