Feature #4256: script that generates the instance types yaml

share/ec2/get-instance-types.rb

@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+
+require 'json'
+require 'pp'
+require 'yaml'
+require 'open-uri'
+
+puts "Very slow script... hold on tight for a couple of minutes..."
+puts
+
+content = open('https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonEC2/current/index.json').read
+content = JSON.parse(content)
+
+types = {}
+content["products"].each do |k,v|
+    instanceType = v["attributes"]["instanceType"]
+    memory       = v["attributes"]["memory"].split[0] rescue nil
+    cpu          = v["attributes"]["vcpu"]
+
+    if types[instanceType].nil? && instanceType && memory && cpu
+        types[instanceType] = {"cpu" => cpu, "memory" => memory}
+    end
+end
+
+puts ({"instance_types" => types.sort.to_h}).to_yaml(:indentation=>4)