Terraform EC2 생성

 

Terraform EC2  생성

 1) Provider 설정

provider "aws" {
  region = "ap-northeast-2"
}

 2) EC2 AMI Instacne 및 type 설정

    - AMI 설정

    - Type 설정 

resource "aws_instance" "web-2a"{
    ami = "ami-0a0de518b1fc4524c"
    instance_type = "t2.micro"
}

 

3) Terraform AWS 적용

  1.1 terraform Project 초기화

   # terraform init  

  1.2 terraform Project 계획 확인

    - 작성한 코드를 실제 AWS에 생성이 가능한지 확인하는 작업

   # terraform plan 

  1.3 terraform Project  리소스 적용

    - 작성한 코드를 실제 AWS에 리소스 적용

    # terraform apply 

     * EC AMI , Instance_type 동일 생성

 

4) EC2 Instance 상세 설정

  1.1 EC2 Instance Tag 

      - EC2 Instance Name Tag 설정

resource "aws_instance" "web-2a"{
    ami = "ami-0a0de518b1fc4524c"
    instance_type = "t2.micro"
    
    tags = {
      Name = "web-2a"
        
    }   
}

# terraform plan

# terrafomr apply

 

 

  1.3 EC2 Security-Group

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

      - EC2 Security-Group 설정시 VPC 변수 생성

# VPC_ID 정보 #
variable "vpc_id"{
    default = "vpc-6237a409"
}

      - EC2 Security-Group 설정

       VPC 정보 참조 :  var.vpc_id

#AWS_Security_Group#
resource "aws_security_group" "allow_web" {
  name        = "allow_web"
  description = "Allow web inbound traffic"
  vpc_id      = var.vpc_id

  ingress {
    description      = "TLS from VPC"
    from_port        = 0
    to_port          = 0
    protocol         = "-1"
    cidr_blocks      = ["0.0.0.0/0"]
  }

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

  tags = {
    Name = "allow_web"
  }
}

 

  1.4 EC2 Subnet 설정

      - EC2 Subnet_Iid 설정(2a,2c zone)

      - var.subnet_id[0] : subnet_id 첫번째 값 

variable "subnet_id"{
    default = ["subnet-79d65a12" , "subnet-5392621c"]
}

      - var.subnet_id[0] : subnet_id 첫번째 값 

resource "aws_instance" "web-2a"{
    ami = "ami-0a0de518b1fc4524c"
    instance_type = "t2.micro"
    vpc_security_group_ids = [aws_security_group.allow_web]
    availability_zone = "us-west-2a"
    subnet_id =var.subnet_id[0]
    
    tags = {
      Name = "web-2a"
    }   
}

  1.5 EC2 EBS 볼륨 확장

      - EBS 30GB 확장

resource "aws_instance" "web-2a"{
    ami = "ami-0a0de518b1fc4524c"
    instance_type = "t2.micro"
    vpc_security_group_ids = [aws_security_group.allow_web.id]
    availability_zone = "ap-northeast-2a"
    subnet_id =var.subnet_id[0]
  
  # EC2 EBS Volumes Increament
    root_block_device {
        volume_size = 30
        volume_type = "gp2"
  }
    tags = {
      Name = "web-2a"
    }   
}

  1.6 EC2 User_DATA 설정

      - User_Data Script : EC2 Instance 설치 패키시 설치

      > file 생성(install.sh)

#!/bin/bash
yum -y update
yum -y install httpd
systemctlctl start httpd
systemctlctl enable httpd
curl http://169.254.169.254/latest/meta-data/instance-id -o /var/www/html/index.html

resource "aws_instance" "web-2a"{
    ami = "ami-0a0de518b1fc4524c"
    instance_type = "t2.micro"
    vpc_security_group_ids = [aws_security_group.allow_web.id]
    availability_zone = "ap-northeast-2a"
    subnet_id =var.subnet_id[0]
    user_data = file("./install.sh")
    
    tags = {
      Name = "web-2a"
    }   
}