CloudFormation Template Example

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "A simple description of what this template does",
  "Parameters": {
    //variables that can be passed to the template during deployment.
  },
  "Mappings": {
    //keys which match to a corresponding set of named values
  }
  "Resources": {
    //aws resources that will be deployed by the stack
  },
  "Outputs": {
    //values that can be returned back after successful completion of the stack
  }
}

{
  "Description" : "Example with Windows instance and VPC",

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

  "Parameters" : {
  "KeyName" : {
      "Description" : "AWS key to use",
      "Type" : "String",
      "Default": "cumulus-prod"
    },

    "InstanceType" : {
      "Description" : "EC2 instance type",
      "Type" : "String",
      "Default" : "t1.micro",
      "AllowedValues" : [ "t1.micro","m1.small","m1.medium","m1.large","m1.xlarge","m2.xlarge","m2.2xlarge","m2.4xlarge","c1.medium","c1.xlarge","cc1.4xlarge","cc2.8xlarge","cg1.4xlarge"],
      "ConstraintDescription" : "must be a valid EC2 instance type."
    }
},

  "Resources" : {
  }
 
}