"Resources" : {
    "MyWebServer" : {
      "Type": "AWS::EC2::Instance",
      "Properties" : {
        "ImageId" : "ami-01e444924a2233b07",
        "InstanceType" : "t2.micro",
        "KeyName": "myawskey",
        "SecurityGroups" : [ { "Ref" : "MySecurityGroup" } ],
