[실습] Terraform - 첫 실행

1. AWS CLI - Role 설정

EC2에 AWS CLI Access Key or Role이 없는 경우

 

 

 

 

aws ec2 describe-images --owners amazon --filters "Name=name,Values=amzn2-ami-hvm-2.0.*-x86_64-gp2" "Name=state,Values=available" --query 'Images|sort_by(@, &CreationDate)[-1].[ImageId, Name]' --output text

 

 

2. main.tf 작성

AL2ID=`aws ec2 describe-images --owners amazon --filters "Name=name,Values=amzn2-ami-hvm-2.0.*-x86_64-gp2" "Name=state,Values=available" --query 'Images|sort_by(@, &CreationDate)[-1].[ImageId]' --output text`
echo $AL2ID

# tf 파일 수정
provider "aws" {
  region = "ap-northeast-1"
}

resource "aws_vpc" "example" {
  cidr_block = "10.100.0.0/16"
}

resource "aws_subnet" "example" {
  vpc_id                  = aws_vpc.example.id
  cidr_block              = "10.100.1.0/24"
  map_public_ip_on_launch = true
}

resource "aws_instance" "example" {
  ami             = "$AL2ID"
  instance_type   = "t2.micro"
  subnet_id       = aws_subnet.example.id

  tags = {
    Name = "aews-study"
  }
}
EOT

 

 

3. ssh 새로 열어 watch로 모니터링

# 모니터링
while true; do aws ec2 describe-instances --query "Reservations[*].Instances[*].{PublicIPAdd:PublicIpAddress,InstanceName:Tags[?Key=='Name']|[0].Value,Status:State.Name}" --filters Name=instance-state-name,Values=running --output text ; echo "------------------------------" ; sleep 1; done

 

4. terraform init, plan, apply

# 초기화
terraform init
ls -al
tree .terraform

# plan 확인
terraform plan

# apply 실행
terraform apply
 Enter a value: yes 입력

 

...

 

 

5. terraform destroy

# 리소스 삭제
terraform destroy

# 리소스 삭제 : yes없이
terraform destroy -auto-approve

..