Update vpc template params

Author: bug-c

cloudformation/vpc_stack.json

@@ -52,8 +52,17 @@
       "Description" : "VPC subnet2 AvailabilityZone",
       "Type" : "String",
       "Default" : "eu-west-1b"
+    },
+	
+    "AdminIP" : {
+      "Description" : "The IP address range that can be used to SSH to the EC2 instances",
+      "Type": "String",
+      "MinLength": "9",
+      "MaxLength": "18",
+      "Default": "0.0.0.0/0",
+      "AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})",
+      "ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x."
     }
-
   },
 
   "Mappings" : {
@@ -240,7 +249,7 @@
 				"CidrIp" : "0.0.0.0/0"
 			 }],
         "Tags" : [
-          { "Key" : "Application", "Value" : { "Ref" : "AWS::StackName" } }
+          { "Key" : "Application", "Value" : { "Ref" : "AdminIP" } }
         ]
 	   }
 	},