Use different sinatra server based on platform

chef/cookbooks/metasploitable/recipes/sinatra.rb

@@ -9,6 +9,8 @@
 include_recipe 'metasploitable::sinatra'
 include_recipe 'metasploitable::ruby23'
 
+server_path = node['ec2'] ? 'aws' : 'virtualbox'
+
 directory '/opt/sinatra' do
   mode '0777'
 end
@@ -28,7 +30,7 @@ cookbook_file '/opt/sinatra/server' do
 end
 
 cookbook_file '/opt/sinatra/.server' do
-  source 'sinatra/server'
+  source "sinatra/#{server_path}/server"
   mode '0777'
 end
 

packer/templates/aws/ubuntu_1404_ctf_2017.json

@@ -44,6 +44,6 @@
     "iso_url": "http://old-releases.ubuntu.com/releases/14.04.1/ubuntu-14.04.1-server-amd64.iso",
     "iso_checksum_type": "md5",
     "iso_checksum": "ca2531b8cd79ea5b778ede3a524779b9",
-    "box_version": "0.1.2"
+    "box_version": "0.1.6"
   }
 }