CloudMigrations: Skip default contact point from snapshot (#106600)

* CloudMigrations: Skip default contact point from snapshot

* Update cloud-migration-assistant.md

* Update cloud-migration-assistant.md

---------

Co-authored-by: Jacob Valdez <jacob.valdez@grafana.com>

pkg/services/cloudmigration/cloudmigrationimpl/snapshot_mgmt_alerts.go

@@ -92,6 +92,12 @@ func (s *Service) getContactPoints(ctx context.Context, signedInUser *user.Signe
 	contactPoints := make([]contactPoint, 0, len(embeddedContactPoints))
 
 	for _, embeddedContactPoint := range embeddedContactPoints {
+		// This happens in the default contact point, and would otherwise fail to migrate because it has no UID.
+		// If that contact point is edited in any way, an UID is generated.
+		if embeddedContactPoint.UID == "" {
+			continue
+		}
+
 		contactPoints = append(contactPoints, contactPoint{
 			UID:                   embeddedContactPoint.UID,
 			Name:                  embeddedContactPoint.Name,

pkg/services/cloudmigration/cloudmigrationimpl/snapshot_mgmt_alerts_test.go

@@ -102,14 +102,12 @@ func TestGetContactPoints(t *testing.T) {
 			},
 		}
 
-		defaultEmailContactPointCount := 1
-
 		createdContactPoints := createContactPoints(t, ctx, s, user)
 
 		contactPoints, err := s.getContactPoints(ctx, user)
 		require.NoError(t, err)
 		require.NotNil(t, contactPoints)
-		require.Len(t, contactPoints, len(createdContactPoints)+defaultEmailContactPointCount)
+		require.Len(t, contactPoints, len(createdContactPoints))
 	})
 
 	t.Run("it returns an error when user lacks permission to read contact point secrets", func(t *testing.T) {