From f28b5b6accbb56754a1716c41dc2960b878b38d3 Mon Sep 17 00:00:00 2001
From: Garet Halliday <me@garet.holiday>
Date: Thu, 19 Oct 2023 16:16:06 -0500
Subject: [PATCH] a

---
 .../discovery/discoverers/zalando_operator/discoverer.go       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/gat/handlers/discovery/discoverers/zalando_operator/discoverer.go b/lib/gat/handlers/discovery/discoverers/zalando_operator/discoverer.go
index 8f0567b4..9e2fc4e4 100644
--- a/lib/gat/handlers/discovery/discoverers/zalando_operator/discoverer.go
+++ b/lib/gat/handlers/discovery/discoverers/zalando_operator/discoverer.go
@@ -150,6 +150,9 @@ func (T *Discoverer) Provision(ctx caddy.Context) error {
 }
 
 func (T *Discoverer) Cleanup() error {
+	if T.done == nil {
+		return nil
+	}
 	close(T.done)
 	return nil
 }
-- 
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