아마존 웹 서비스를 다루는 기술 22장 - 3. EC2 인스턴스를 생성하고 웹 서버를 설치, 실행하는 CloudFormation 템플릿

{
  "Description" : "Create an EC2 instance running the Amazon Linux 64 bit AMI.",
  "Parameters" : {
    "KeyPair" : {
      "Description" : "The EC2 Key Pair to allow SSH access to the instance",
      "Type" : "String",
      "Default" : "awskeypair"
    }
  },
  "Resources" : {
    "Ec2Instance" : {
      "Type" : "AWS::EC2::Instance",
      "Properties" : {
        "KeyName" : { "Ref" : "KeyPair" },
        "ImageId" : "ami-c9562fc8",
        "InstanceType" : "t1.micro",
        "UserData": {
          "Fn::Base64": {
            "Fn::Join": [ "",
              [ "#!/bin/bash\n",
              "/opt/aws/bin/cfn-init --region ", {  "Ref": "AWS::Region" },
              " -s ", { "Ref": "AWS::StackName" },
              " -r Ec2Instance\n" ]
            ]
          }
        }
      },
      "Metadata" : {
        "AWS::CloudFormation::Init" : {
          "config" : {
            "packages" : {
              "yum" : {
                "httpd" : []
              }
            },
            "services" : {
              "sysvinit" : {
                "httpd" : {
                  "enabled" : "true",
                  "ensureRunning" : "true"
                }
              }
            }
          }
        }
      }
    }
  },
  "Outputs" : {
    "InstanceId" : {
      "Description" : "The InstanceId of the newly created EC2 instance",
      "Value" : {
        "Ref" : "Ec2Instance"
      }
    }
  },
  "AWSTemplateFormatVersion" : "2010-09-09"
}