From d9f4a8c95fc5d3240cc9477c2d3f482a7a6aaa98 Mon Sep 17 00:00:00 2001
From: Sylvain Rabot <sylvain@abstraction.fr>
Date: Mon, 14 Jan 2019 16:09:27 +0100
Subject: [PATCH] sd: Fix stuck Azure service discovery (#5088)

Signed-off-by: Sylvain Rabot <s.rabot@lectra.com>
---
 discovery/azure/azure.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/discovery/azure/azure.go b/discovery/azure/azure.go
index 7c999382ef..ecdad07c1b 100644
--- a/discovery/azure/azure.go
+++ b/discovery/azure/azure.go
@@ -362,6 +362,10 @@ func (d *Discovery) refresh() (tg *targetgroup.Group, err error) {
 					}
 				}
 			}
+
+			// If we get here we haven't sent anything to the channel.
+			// We need to send it something to release it.
+			ch <- target{}
 		}(i, vm)
 	}