From 5a1842635dea256ac8ffecec15c2fe98b5100e59 Mon Sep 17 00:00:00 2001
From: "Grot (@grafanabot)" <43478413+grafanabot@users.noreply.github.com>
Date: Mon, 20 Jun 2022 10:11:46 -0400
Subject: [PATCH] Alerting: Use ErrImagesDone in Discord and SensuGo (#51106)
 (#51125)

(cherry picked from commit 7235480be5ef1a4a0810a5310c1f8e4a813e8bab)

Co-authored-by: George Robinson <george.robinson@grafana.com>
---
 pkg/services/ngalert/notifier/channels/discord.go | 3 +--
 pkg/services/ngalert/notifier/channels/sensugo.go | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/services/ngalert/notifier/channels/discord.go b/pkg/services/ngalert/notifier/channels/discord.go
index 7bb82b754ec..48fac488c71 100644
--- a/pkg/services/ngalert/notifier/channels/discord.go
+++ b/pkg/services/ngalert/notifier/channels/discord.go
@@ -201,8 +201,7 @@ func (d DiscordNotifier) constructAttachments(ctx context.Context, as []*types.A
 	_ = withStoredImages(ctx, d.log, d.images,
 		func(index int, image *ngmodels.Image) error {
 			if embedQuota < 1 {
-				// TODO: Could be a sentinel error to stop execution.
-				return nil
+				return ErrImagesDone
 			}
 
 			if image == nil {
diff --git a/pkg/services/ngalert/notifier/channels/sensugo.go b/pkg/services/ngalert/notifier/channels/sensugo.go
index 1f9a656fd57..35726d3ab8c 100644
--- a/pkg/services/ngalert/notifier/channels/sensugo.go
+++ b/pkg/services/ngalert/notifier/channels/sensugo.go
@@ -147,6 +147,7 @@ func (sn *SensuGoNotifier) Notify(ctx context.Context, as ...*types.Alert) (bool
 			// one image per request.
 			if image != nil && image.URL != "" && imageURL == "" {
 				imageURL = image.URL
+				return ErrImagesDone
 			}
 			return nil
 		}, as...)