1 files changed, 45 insertions, 0 deletions
diff --git a/qa/qa/scenario/bootable.rb b/qa/qa/scenario/bootable.rb
new file mode 100644
index 00000000000..cf8996cd597
--- /dev/null
+++ b/qa/qa/scenario/bootable.rb
@@ -0,0 +1,45 @@
+require 'optparse'
+
+module QA
+  module Scenario
+    module Bootable
+      Option = Struct.new(:name, :arg, :desc)
+
+      def self.included(base)
+        base.extend(ClassMethods)
+      end
+
+      module ClassMethods
+        def launch!(argv)
+          return self.perform(*argv) unless has_attributes?
+
+          arguments = OptionParser.new do |parser|
+            options.to_a.each do |opt|
+              parser.on(opt.arg, opt.desc) do |value|
+                Runtime::Scenario.define(opt.name, value)
+              end
+            end
+          end
+
+          arguments.parse!(argv)
+
+          self.perform(**Runtime::Scenario.attributes)
+        end
+
+        private
+
+        def attribute(name, arg, desc)
+          options.push(Option.new(name, arg, desc))
+        end
+
+        def options
+          @options ||= []
+        end
+
+        def has_attributes?
+          options.any?
+        end
+      end
+    end
+  end
+end