support stack_type=physical

Change-Id: I63491181d546b5cb6ca0f942d974e4537d65e6e6
diff --git a/cloud-deploy-pipeline.groovy b/cloud-deploy-pipeline.groovy
index 57c0e38..3eaaeb6 100644
--- a/cloud-deploy-pipeline.groovy
+++ b/cloud-deploy-pipeline.groovy
@@ -1,6 +1,6 @@
 /**
  *
- * Launch heat/cloudformation stack
+ * Launch stack and work with it
  *
  * Expected parameters:
  *   STACK_NAME                 Infrastructure stack name
@@ -189,7 +189,9 @@
                     currentBuild.description = "${STACK_NAME} ${saltMasterHost}"
                     SALT_MASTER_URL = "http://${saltMasterHost}:6969"
 
-                } else {
+                } else if (STACK_TYPE == 'physical') {
+                    common.infoMsg('Using physical stack')
+                } else  {
                     throw new Exception("STACK_TYPE ${STACK_TYPE} is not supported")
                 }