providers/virtualbox: copy SSH key

plugins/providers/virtualbox/action.rb

@@ -12,7 +12,7 @@ module VagrantPlugins
       autoload :CleanMachineFolder, File.expand_path("../action/clean_machine_folder", __FILE__)
       autoload :ClearForwardedPorts, File.expand_path("../action/clear_forwarded_ports", __FILE__)
       autoload :ClearNetworkInterfaces, File.expand_path("../action/clear_network_interfaces", __FILE__)
-      autoload :CreateClone, File.expand_path("../action/create_clone", __FILE__)
+      autoload :Clone, File.expand_path("../action/clone", __FILE__)
       autoload :Created, File.expand_path("../action/created", __FILE__)
       autoload :Customize, File.expand_path("../action/customize", __FILE__)
       autoload :Destroy, File.expand_path("../action/destroy", __FILE__)
@@ -390,13 +390,13 @@ module VagrantPlugins
                 # We are cloning from another Vagrant environment
                 b2.use PrepareClone
                 b2.use PrepareCloneSnapshot
-                b2.use CreateClone
+                b2.use Clone
                 b2.use DiscardState
               elsif env[:machine].provider_config.linked_clone
                 # We are cloning from the box
                 b2.use ImportMaster
                 b2.use PrepareCloneSnapshot
-                b2.use CreateClone
+                b2.use Clone
                 b2.use DiscardState
               else
                 # We are just doing a normal import from a box

plugins/providers/virtualbox/action/clone.rb

@@ -1,9 +1,11 @@
 require "log4r"
 
+require "fileutils"
+
 module VagrantPlugins
   module ProviderVirtualBox
     module Action
-      class CreateClone
+      class Clone
         def initialize(app, env)
           @app = app
           @logger = Log4r::Logger.new("vagrant::action::vm::clone")
@@ -25,6 +27,16 @@ module VagrantPlugins
           # Flag as erroneous and return if clone failed
           raise Vagrant::Errors::VMCloneFailure if !env[:machine].id
 
+          # Copy the SSH key from the clone machine if we can
+          if env[:clone_machine]
+            key_path = env[:clone_machine].data_dir.join("private_key")
+            if key_path.file?
+              FileUtils.cp(
+                key_path,
+                env[:machine].data_dir.join("private_key"))
+            end
+          end
+
           # Continue
           @app.call(env)
         end

plugins/providers/virtualbox/action/prepare_clone.rb

@@ -22,6 +22,7 @@ module VagrantPlugins
 
           # Set the ID of the master so we know what to clone from
           env[:clone_id] = clone_machine.id
+          env[:clone_machine] = clone_machine
 
           # Continue
           @app.call(env)