Cloudformation template for our hello-world Packer AMI

HelloWorld.json

{
  "AWSTemplateFormatVersion" : "2010-09-09",
  "Description" : "Creates an EC2 instance with our hello-world AMI",

  "Parameters" : {

    "KeyName" : {
      "Description" : "Name of the production EC2 KeyPair to enable SSH to the instance",
      "Type" : "String"
    },

    "InstanceImageId" : {
      "Description" : "EC2 image id (e.g. 'ami-d9d6a6b0')",
      "Type" : "String"
    }

  },

  "Resources" : {

    "Instance" : {
      "Type" : "AWS::EC2::Instance",

      "Properties" : {
        "ImageId" : { "Ref" : "InstanceImageId" },
        "InstanceType" : "m1.small",
        "KeyName" : { "Ref" : "KeyName" },
        "SecurityGroups": [ { "Ref": "InstanceSecurityGroup" } ],
        "Tags" : [
          {"Key" : "Name", "Value" : "HelloWorld" }
        ]
      }
    },

    "InstanceSecurityGroup" : {
      "Type" : "AWS::EC2::SecurityGroup",
      "Properties" : {
        "GroupDescription" : "Open all (most) ports.",
        "SecurityGroupIngress" : [
          { "IpProtocol" : "tcp",
            "FromPort" : "0",
            "ToPort" : "65000",
            "CidrIp" : "0.0.0.0/0"
          },
          { "IpProtocol" : "udp",
            "FromPort" : "0",
            "ToPort" : "65000",
            "CidrIp" : "0.0.0.0/0"
          }
        ]
      }
    }

  },

  "Outputs" : {
    "InstanceId" : {
      "Description" : "InstanceId of the newly created EC2 instance",
      "Value" : { "Ref" : "Instance" }
    }
  }
}