How To Create An EC2 Instance With Terraform

In this document we are going to create an EC2 Instance using Terrform Scripting file.

Only below Resources Will covered:

1. EC2 Instance (with Enable Termination Protection)
2. EIP
3. Security Groups
4. Key File

Pre-requiestes:

• Create IAM USER

• And Get ACCESS_KEY & SECRET_KEY

Create main.tf file and Paste following code.

############################_AWS_Provider_###################################

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

provider "aws" {
  region     = "write-your-region-name"
  access_key = "paste-your-access-key"
  secret_key = "paste-your-secret-key"
}

############################_Creating Instance_###################################

resource "aws_instance" "Instance1" {
  ami           = "ami-074dc0a6f6c764218"
  instance_type = "t2.micro"
  disable_api_termination = "true"
  key_name = "Instance1-key" #Change the name as per your Instance
  security_groups = ["sg_for_terraform_instance"]

  tags = {
    Name = "Terraform-Instance"
  }
}

############################_Assigne_Pem_file_###################################


resource "aws_key_pair" "keyfile" {
  key_name   = "Instance1-key"
  public_key = file("~/.ssh/id_rsa.pub")
}

############################_Assigne_EIP_To_Instance__###################################

resource "aws_eip" "lb" {
  vpc      = true
}

resource "aws_eip_association" "eip_assoc" {
  instance_id   = aws_instance.Instance1.id
  allocation_id = aws_eip.lb.id
}


############################_Security_Group_For_Instance__###################################

resource "aws_security_group" "Instance_SG" {
  name = "sg_for_ierraform_instance"

  #Incoming traffic for HTTP
  ingress {
    from_port = 80
    to_port = 80
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"] #replace it with your ip address
  }

  #Incoming traffic for SSH
  ingress {
    from_port = 22
    to_port = 22
    protocol = "tcp"
    cidr_blocks = ["122.160.66.86/32"] #replace it with your ip address
  }

  #Outgoing traffic
  egress {
    from_port = 0
    protocol = "-1"
    to_port = 0
    cidr_blocks = ["0.0.0.0/0"]
  }
}