{
  "AWSTemplateFormatVersion" : "2010-09-09",

  "Description" : "AWS CloudFormation Sample Template to create instance and output ID for transforming to an image by Roark.",

  "Mappings" : {
    "AWSRegionArch2AMI" : {
      "us-east-1"      : { "PV64" : "ami-1624987f" },
      "us-west-2"      : { "PV64" : "ami-2a31bf1a" },
      "us-west-1"      : { "PV64" : "ami-1bf9de5e" },
      "eu-west-1"      : { "PV64" : "ami-c37474b7" },
      "ap-southeast-1" : { "PV64" : "ami-a6a7e7f4" },
      "ap-southeast-2" : { "PV64" : "ami-bd990e87" },
      "ap-northeast-1" : { "PV64" : "ami-4e6cd34f" },
      "sa-east-1"      : { "PV64" : "ami-1e08d103" }
    }
  },

  "Resources" : {
    "Instance" : {
      "Type" : "AWS::EC2::Instance",
      "Properties" : {
        "ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" }, "PV64" ]},
        "InstanceType" : "m1.large",
        "SecurityGroups" : [{ "Ref" : "Ec2SecurityGroup" }],
        "UserData"       : { "Fn::Base64" : { "Fn::Join" : ["", [
          "#!/bin/bash\n",
          "echo 'Hello World!' > /hello_world.txt", "\n"
        ]]}}
      }
    },

    "Ec2SecurityGroup" : {
      "Type" : "AWS::EC2::SecurityGroup",
      "Properties" : {
        "GroupDescription" : "HTTP and SSH access",
        "SecurityGroupIngress" : [ {
          "IpProtocol" : "tcp",
          "FromPort" : "22", "ToPort" : "22",
          "CidrIp" : "0.0.0.0/0"
        } ]
      }
    }
  },

  "Outputs" : {
    "InstanceId" : {
      "Value" : { "Ref" : "Instance" },
      "Description" : "ID of Instance"
    }
  }
}