message: Fix standalone server
diff: * limitations under the License.
  */
  -import { createServiceBuilder } from '@backstage/backend-common';
  +import {
  + createServiceBuilder,
  + loadBackendConfig,
  + SingleHostDiscovery,
  +} from '@backstage/backend-common';
  import { Server } from 'http';
  import { Logger } from 'winston';
  import { createRouter } from './router';
  @@ -33,6 +37,8 @@ export async function startStandaloneServer(
  options: ServerOptions,
  ): Promise<Server> {
  const logger = options.logger.child({ service: 'search-backend' });
  + const config = await loadBackendConfig({ logger, argv: process.argv });
  + const discovery = SingleHostDiscovery.fromConfig(config);
  const searchEngine = new LunrSearchEngine({ logger });
  const indexBuilder = new IndexBuilder({ logger, searchEngine });
  logger.debug('Starting application server...');
  @@ -42,6 +48,7 @@ export async function startStandaloneServer(
  const router = await createRouter({
  engine: indexBuilder.getSearchEngine(),
  logger,
  + discovery,
  });
  let service = createServiceBuilder(module)
  