lib/autocanary24/canarystack.rb in autocanary24-0.4.1 vs lib/autocanary24/canarystack.rb in autocanary24-0.4.2

@@ -98,10 +98,12 @@
 
       instances = auto_scaling_group[:instances] \
         .select { |i| i[:lifecycle_state]=="InService" } \
         .map{ |i| { instance_id: i[:instance_id] } }
 
-      wait_for_instances_detached_from_elb(instances, elb)
+      if instances.length > 0
+        wait_for_instances_detached_from_elb(instances, elb)
+      end
     end
 
     def wait_for_instances_detached_from_elb(instances, elb)
       elb_client = Aws::ElasticLoadBalancing::Client.new
       retries = (@wait_timeout / @sleep_during_wait).round