Enforce the allowed values for the SpotProductDescription CloudFormat…

…ion stack parameter

cloudformation/stacks/AutoSpotting/parameters.yaml

@@ -5,8 +5,13 @@
 # This file is handled automatically using the clouds-aws tool. It can be
 # installed using pip, or from https://github.com/elias5000/clouds-aws
 LambdaZipPath: nightly/lambda.zip
-LambdaHandlerFunction: autospotting
+LambdaHandlerFunction: autospotting # Changed after the Lambda runtime was switched to Go, changing this value requires stack re-creation or also an update of the LambdaZipPath
 LambdaS3Bucket: cloudprowess
 LambdaMemorySize: '1024'
 ExecutionFrequency: "rate(1 minute)"
 MinOnDemandNumber: '1'
+
+# Valid choices:
+# - for EC2 Classic environments: Linux/UNIX | SUSE Linux | Windows
+# - for VPC: Linux/UNIX (Amazon VPC) | SUSE Linux (Amazon VPC) | Windows (Amazon VPC)
+SpotProductDescription: "Linux/UNIX (Amazon VPC)"

cloudformation/stacks/AutoSpotting/template.json

@@ -53,14 +53,26 @@
       "Type": "Number"
     },
     "SpotProductDescription": {
-      "Default": "Linux/Unix (Amazon VPC)",
+      "Default": "Linux/UNIX (Amazon VPC)",
       "Description": "The Spot Product or operating system to use when looking up spot price history in the market. Valid choices: Linux/UNIX | SUSE Linux | Windows | Linux/UNIX (Amazon VPC) | SUSE Linux (Amazon VPC) | Windows (Amazon VPC)",
-      "Type": "String"
+      "Type": "String",
+      "AllowedValues" : [
+        "Linux/UNIX",
+        "SUSE Linux",
+        "Windows",
+        "Linux/UNIX (Amazon VPC)",
+        "SUSE Linux (Amazon VPC)",
+        "Windows (Amazon VPC)"
+      ]
     },
     "BiddingPolicy": {
       "Default": "normal",
       "Description": "Policy choice for spot bid. If set to 'normal', we bid at the on-demand price. If set to 'aggressive', we bid at a multiple of the spot price.",
-      "Type": "String"
+      "Type": "String",
+      "AllowedValues" : [
+        "normal",
+        "aggressive"
+      ]
     },
     "Regions": {
       "Default": "",