[COOK-3765] - ssh-keyscan using an alternative port number

Signed-off-by: Sean OMeara <someara@opscode.com>

README.md

@@ -69,6 +69,12 @@ end
       <td><tt>ssh-rsa ...</tt></td>
       <td><tt>ssh-keyscan -H #{host}</tt></td>
     </tr>
+    <tr>
+      <td>port</td>
+      <td>(optional) the server port that ssh-keyscan will use to gather the public key</td>
+      <td><tt>2222</tt></td>
+      <td><tt>22</tt></td>
+    </tr>
   </tbody>
 </table>
 

providers/entry.rb

@@ -18,7 +18,7 @@
 #
 
 action :create do
-  key = (new_resource.key || `ssh-keyscan -H #{new_resource.host} 2>&1`)
+  key = (new_resource.key || `ssh-keyscan -H -p #{new_resource.port} #{new_resource.host} 2>&1`)
   comment = key.split("\n").first || ""
 
   Chef::Application.fatal! "Could not resolve #{new_resource.host}" if key =~ /getaddrinfo/

resources/entry.rb

@@ -21,6 +21,7 @@
 
 attribute :host, :kind_of => String, :name_attribute => true
 attribute :key, :kind_of => String
+attribute :port, :kind_of => Fixnum, :default => 22
 
 def initialize(*args)
   super