Added features for auto updating and pruning vagrant box images

README.md

@@ -160,6 +160,14 @@ default `box` value of `bento/ubuntu-16.04`. Alternatively, a box called
 
 Whether to check for box updates (enabled by default).
 
+### <a name="config-box-auto-update"></a> box\_auto\_update
+
+Whether to update box to the latest version prior to vagrant up command
+
+### <a name="config-box-auto-prune"></a> box\_auto\_prune
+
+Whether to prune older versions of the box and only keep the newest version
+
 ### <a name="config-box-url"></a> box\_url
 
 A box_url is not required when using the Vagrant Cloud format of 

lib/kitchen/driver/vagrant.rb

@@ -45,6 +45,10 @@ class Vagrant < Kitchen::Driver::Base
 
       default_config :box_check_update, nil
 
+      default_config :box_auto_update, nil
+
+      default_config :box_auto_prune, nil
+
       default_config :box_download_insecure, nil
 
       default_config :box_download_ca_cert, nil
@@ -109,6 +113,8 @@ class Vagrant < Kitchen::Driver::Base
       def create(state)
         create_vagrantfile
         run_pre_create_command
+        run_box_auto_update
+        run_box_auto_prune
         run_vagrant_up
         update_state(state)
         instance.transport.connection(state).wait_until_ready
@@ -172,6 +178,8 @@ def package(state)
       def finalize_config!(instance)
         super
         finalize_vm_hostname!
+        finalize_box_auto_update!
+        finalize_box_auto_prune!
         finalize_pre_create_command!
         finalize_synced_folders!
         finalize_ca_cert!
@@ -299,6 +307,20 @@ def finalize_ca_cert!
         end
       end
 
+      # Create vagrant command to update box to the latest version
+      def finalize_box_auto_update!
+        return if config[:box_auto_update].nil?
+
+        config[:box_auto_update] = "vagrant box update #{'--insecure ' if config[:box_download_insecure]}--box #{config[:box]}"
+      end
+
+      # Create vagrant command to remove older versions of the box
+      def finalize_box_auto_prune!
+        return if config[:box_auto_prune].nil?
+
+        config[:box_auto_prune] = "vagrant box prune --name #{config[:box]}"
+      end
+
       # Replaces any `{{vagrant_root}}` tokens in the pre create command.
       #
       # @api private
@@ -461,6 +483,20 @@ def run_command(cmd, options = {})
       end
       # rubocop:enable Metrics/CyclomaticComplexity
 
+      # Tell vagrant to update vagrant box to latest version
+      def run_box_auto_update
+        if config[:box_auto_update]
+          run(config[:box_auto_update])
+        end
+      end
+
+      # Tell vagrant to remove older vagrant boxes
+      def run_box_auto_prune
+        if config[:box_auto_prune]
+          run(config[:box_auto_prune])
+        end
+      end
+
       # Runs a local command before `vagrant up` has been called.
       #
       # @api private