Don't update ASG when there are no targetgroups (#141)

Fix #139
zalando-incubator · Mar 8, 2018 · 83b5e37 · 83b5e37
1 parent d63bbb1
commit 83b5e37
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/aws/adapter.go b/aws/adapter.go
@@ -283,6 +283,12 @@ func (a *Adapter) UpdateTargetGroupsAndAutoScalingGroups(stacks []*Stack) {
 	for i, stack := range stacks {
 		targetGroupARNs[i] = stack.targetGroupARN
 	}
+
+	// don't do anything if there are no target groups
+	if len(targetGroupARNs) == 0 {
+		return
+	}
+
 	for _, asg := range a.autoScalingGroups {
 		// This call is idempotent and safe to execute every time
 		if err := updateTargetGroupsForAutoScalingGroup(a.autoscaling, targetGroupARNs, asg.name); err != nil {