[v11.0.x] SSO: fix reloading settings when a provider contains empty settings (#86142)

SSO: fix reloading settings when a provider contains empty settings (#85102)

* fix reloading settings when a provider contains empty settings

* do not increment reloadFailures if settings are empty

(cherry picked from commit fad6dc4db1)

Co-authored-by: Mihai Doarna <mihai.doarna@grafana.com>

pkg/services/ssosettings/ssosettingsimpl/service.go

@@ -365,9 +365,14 @@ func (s *Service) doReload(ctx context.Context) {
 	}
 
 	for provider, connector := range s.reloadables {
-		setting := getSettingByProvider(provider, settingsList)
+		settings := getSettingByProvider(provider, settingsList)
 
-		err = connector.Reload(ctx, *setting)
+		if settings == nil || len(settings.Settings) == 0 {
+			s.logger.Warn("SSO Settings is empty", "provider", provider)
+			continue
+		}
+
+		err = connector.Reload(ctx, *settings)
 		if err != nil {
 			s.metrics.reloadFailures.WithLabelValues(provider).Inc()
 			s.logger.Error("failed to reload SSO Settings", "provider", provider, "err", err)

pkg/services/ssosettings/ssosettingsimpl/service_test.go

@@ -1248,6 +1248,36 @@ func TestService_DoReload(t *testing.T) {
 		env.service.doReload(context.Background())
 	})
 
+	t.Run("successfully reload settings when some providers have empty settings", func(t *testing.T) {
+		t.Parallel()
+
+		env := setupTestEnv(t, false, false, nil)
+
+		settingsList := []*models.SSOSettings{
+			{
+				Provider: "azuread",
+				Settings: map[string]any{
+					"enabled":   true,
+					"client_id": "azuread_client_id",
+				},
+			},
+			{
+				Provider: "google",
+				Settings: map[string]any{},
+			},
+		}
+		env.store.ExpectedSSOSettings = settingsList
+
+		reloadable := ssosettingstests.NewMockReloadable(t)
+		reloadable.On("Reload", mock.Anything, *settingsList[0]).Return(nil).Once()
+		env.reloadables["azuread"] = reloadable
+
+		// registers a provider with empty settings
+		env.reloadables["github"] = nil
+
+		env.service.doReload(context.Background())
+	})
+
 	t.Run("failed fetching the SSO settings", func(t *testing.T) {
 		t.Parallel()