From 87ab98ea95ddddf647b73e557b79d0f2d6e944b8 Mon Sep 17 00:00:00 2001
From: Matthew Jacobson <matthew.jacobson@grafana.com>
Date: Mon, 19 Feb 2024 10:30:13 -0500
Subject: [PATCH] Alerting: Fix panic in provisioning filter contacts by
 unknown name (#83070)

---
 pkg/services/ngalert/provisioning/contactpoints.go      | 2 +-
 pkg/services/ngalert/provisioning/contactpoints_test.go | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkg/services/ngalert/provisioning/contactpoints.go b/pkg/services/ngalert/provisioning/contactpoints.go
index c9886e97cb2..37a3c03925a 100644
--- a/pkg/services/ngalert/provisioning/contactpoints.go
+++ b/pkg/services/ngalert/provisioning/contactpoints.go
@@ -80,7 +80,7 @@ func (ecp *ContactPointService) GetContactPoints(ctx context.Context, q ContactP
 		return nil, convertRecSvcErr(err)
 	}
 	grafanaReceivers := []*apimodels.GettableGrafanaReceiver{}
-	if q.Name != "" {
+	if q.Name != "" && len(res) > 0 {
 		grafanaReceivers = res[0].GettableGrafanaReceivers.GrafanaManagedReceivers // we only expect one receiver group
 	} else {
 		for _, r := range res {
diff --git a/pkg/services/ngalert/provisioning/contactpoints_test.go b/pkg/services/ngalert/provisioning/contactpoints_test.go
index 995b9bb6c47..12081f1ba5d 100644
--- a/pkg/services/ngalert/provisioning/contactpoints_test.go
+++ b/pkg/services/ngalert/provisioning/contactpoints_test.go
@@ -53,6 +53,15 @@ func TestContactPointService(t *testing.T) {
 		require.Equal(t, "slack receiver", cps[0].Name)
 	})
 
+	t.Run("service filters contact points by name, returns empty when no match", func(t *testing.T) {
+		sut := createContactPointServiceSut(t, secretsService)
+
+		cps, err := sut.GetContactPoints(context.Background(), cpsQueryWithName(1, "unknown"), nil)
+		require.NoError(t, err)
+
+		require.Len(t, cps, 0)
+	})
+
 	t.Run("service stitches contact point into org's AM config", func(t *testing.T) {
 		sut := createContactPointServiceSut(t, secretsService)
 		newCp := createTestContactPoint()