async function startAll() {
  // Prepares services to load according to it's status
  const dbServices = await this.getAll();
  const dbServiceByKey = {};
  dbServices.forEach((service) => {
    dbServiceByKey[service.name] = service;
  });

  const serviceKeys = Object.keys(this.getServices());
  const servicesToLoad = serviceKeys.filter((serviceKey) => {
    const dbService = dbServiceByKey[serviceKey];
    if (!dbService) {
      return false;
    }

    const { status } = dbService;
    switch (status) {
      case SERVICE_STATUS.STOPPED:
        logger.info(`Service ${serviceKey} was manually stopped, so it is ignored at startup`);
        return false;
      default:
        return true;
    }
  });

  return Promise.map(servicesToLoad, (serviceKey) => this.start(serviceKey), { concurrency: 1 });
}
@public
@description Start all services.
@returns {Promise} - Resolve when all services are started.
@example
service.startAll();