bin/rikanjo in aws-rikanjo-0.0.6 vs bin/rikanjo in aws-rikanjo-0.0.7

@@ -7,12 +7,26 @@
 
 options = { }
 
 optparse = OptionParser.new do |opts|
 
-  opts.banner = "Usage: rikanjo [options]"
+  opts.banner = "Usage: rikanjo ec2/rds [options]"
 
+  # subcommand
+  mode = ARGV.shift
+  if mode == 'ec2'
+  elsif mode == 'rds'
+    opts.on("--multiaz", "enable multi-az") do |value|
+      options[:multiaz] = value
+    end
+  else
+    $stderr.puts "no such subcommand: #{mode}"
+    puts opts
+    exit 1
+  end
+  options[:mode] = mode
+
   region_values = %w[us-east-1 us-west-1 us-west-2 eu-west-1 ap-southeast-1 ap-northeast-1 ap-southeast-2 sa-east-1 ]
   opts.on("-r", "--region=VALUE", region_values, "specify aws-region (#{region_values.join('/')})") do |value|
     options[:region] = value
   end
 
@@ -30,10 +44,12 @@
     exit
   end
 
 end
 
+
+
 # validation
 begin
   optparse.parse!
   require_args = [:region, :instance_type, :ri_util]
   error_args = require_args.select{ |param| options[param].nil? }
@@ -51,10 +67,12 @@
 end
 
 # rikanjo
 require "aws/rikanjo"
 a = Aws::RiKanjoo.new(
+    mode = options[:mode],
     region = options[:region],
     instance_type = options[:instance_type],
     ri_util = options[:ri_util],
+    multiaz = options[:multiaz],
 )
 a.total_cost_year