From 52f398e7f794215375c767b87149951297287d23 Mon Sep 17 00:00:00 2001
From: Marcus Efraimsson <marcus.efraimsson@gmail.com>
Date: Wed, 17 Oct 2018 10:58:06 +0200
Subject: [PATCH] cloudwatch: return a distinct list of regions

---
 pkg/tsdb/cloudwatch/metric_find_query.go | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pkg/tsdb/cloudwatch/metric_find_query.go b/pkg/tsdb/cloudwatch/metric_find_query.go
index f2633bd6be6..b74af76f09a 100644
--- a/pkg/tsdb/cloudwatch/metric_find_query.go
+++ b/pkg/tsdb/cloudwatch/metric_find_query.go
@@ -249,7 +249,18 @@ func (e *CloudWatchExecutor) handleGetRegions(ctx context.Context, parameters *s
 		plog.Error("Failed to get regions", "error", err)
 	} else {
 		for _, region := range r.Regions {
-			regions = append(regions, *region.RegionName)
+			exists := false
+
+			for _, existingRegion := range regions {
+				if existingRegion == *region.RegionName {
+					exists = true
+					break
+				}
+			}
+
+			if !exists {
+				regions = append(regions, *region.RegionName)
+			}
 		}
 	}
 	sort.Strings(regions)