Fixed two bugs in the sample yaml: interactive was split into tty and stdin_open following the compose file docs. And stop_grace_period requires an integer, not a time string.

dup.rb

@@ -49,11 +49,12 @@ def get_sample(name="container")
 		  
 		  container_name: "Something"
 		  mem_limit: 125M
-		  interactive: false
+		  stdin_open: false
+		  tty: false
 		  detach: true
 		  remove: false
 		  stop_signal: SIGUSR1
-		  stop_grace_period: 5s
+		  stop_grace_period: 5
 		  
 		  before_build:
 		    - "echo 'Starting build'"