Allow package command to just take a snapshot

Currently, the snapshot sub-command is not supported
for this provider, but the ability to take ami snapshots
is supported inside of the package command.

This patch adds an option: `package_only_snapshot`
that allows you to use the package option to only
take a snapshot.

README.md

@@ -161,6 +161,8 @@ This provider exposes quite a few provider-specific configuration options:
 * `tenancy` - When running in a VPC configure the tenancy of the instance.  Supports 'default' and 'dedicated'.
 * `tags` - A hash of tags to set on the machine.
 * `package_tags` - A hash of tags to set on the ami generated during the package operation.
+* `package_only_snapshot` - A boolean that indicates whether the package command should only
+   create an AMI snapshot and not create a vagrant box. Defaults to false.
 * `use_iam_profile` - If true, will use [IAM profiles](http://docs.aws.amazon.com/IAM/latest/UserGuide/instance-profiles.html)
   for credentials.
 * `block_device_mapping` - Amazon EC2 Block Device Mapping Property

lib/vagrant-aws/action/package_instance.rb

@@ -92,26 +92,30 @@ def call(env)
             raise Errors::FogError, :message => e.message
           end
 
-          # Handles inclusions from --include and --vagrantfile options
-          setup_package_files(env)
-
-          # Setup the temporary directory for the tarball files
-          @temp_dir = env[:tmp_path].join(Time.now.to_i.to_s)
-          env["export.temp_dir"] = @temp_dir
-          FileUtils.mkpath(env["export.temp_dir"])
-
-          # Create the Vagrantfile and metadata.json files from templates to go in the box
-          create_vagrantfile(env)
-          create_metadata_file(env)
-
-          # Just match up a couple environmental variables so that
-          # the superclass will do the right thing. Then, call the
-          # superclass to actually create the tarball (.box file)
-          env["package.directory"] = env["export.temp_dir"]
-          general_call(env)
-
-          # Always call recover to clean up the temp dir
-          clean_temp_dir
+          region=env[:machine].provider_config.region
+          region_config=env[:machine].provider_config.get_region_config(region)
+          if !region_config.package_only_snapshot
+            # Handles inclusions from --include and --vagrantfile options
+            setup_package_files(env)
+
+            # Setup the temporary directory for the tarball files
+            @temp_dir = env[:tmp_path].join(Time.now.to_i.to_s)
+            env["export.temp_dir"] = @temp_dir
+            FileUtils.mkpath(env["export.temp_dir"])
+
+            # Create the Vagrantfile and metadata.json files from templates to go in the box
+            create_vagrantfile(env)
+            create_metadata_file(env)
+
+            # Just match up a couple environmental variables so that
+            # the superclass will do the right thing. Then, call the
+            # superclass to actually create the tarball (.box file)
+            env["package.directory"] = env["export.temp_dir"]
+            general_call(env)
+
+            # Always call recover to clean up the temp dir
+            clean_temp_dir
+          end
         end
 
         protected

lib/vagrant-aws/config.rb

@@ -114,6 +114,12 @@ class Config < Vagrant.plugin("2", :config)
       # @return [Hash<String, String>]
       attr_accessor :package_tags
 
+      # Whether to create a vagrant package or just take a snapshot when running
+      # the package subcommand.
+      #
+      # @return [Boolean]
+      attr_accessor :package_only_snapshot
+
       # Use IAM Instance Role for authentication to AWS instead of an
       # explicit access_id and secret_access_key
       #
@@ -215,6 +221,7 @@ def initialize(region_specific=false)
         @subnet_id                 = UNSET_VALUE
         @tags                      = {}
         @package_tags              = {}
+        @package_only_snapshot     = false
         @user_data                 = UNSET_VALUE
         @use_iam_profile           = UNSET_VALUE
         @block_device_mapping      = []

spec/vagrant-aws/config_spec.rb

@@ -46,6 +46,7 @@
     its("iam_instance_profile_name") { should be_nil }
     its("tags")              { should == {} }
     its("package_tags")      { should == {} }
+    its("package_only_snapshot") { should == false }
     its("user_data")         { should be_nil }
     its("use_iam_profile")   { should be false }
     its("block_device_mapping")  {should == [] }