Repository: traefik/traefik
File: pkg/provider/nomad/nomad.go (Go)

Code before:
	}

	return nil
}

// Provide allows the Nomad Traefik Provider to provide configurations to traefik
// using the given configuration channel.
func (p *Provider) Provide(configurationChan chan<- dynamic.Message, pool *safe.Pool) error {
	var err error
	p.client, err = createClient(p.namespace, p.Endpoint)
	if err != nil {
		return fmt.Errorf("failed to create nomad API client: %w", err)
	}

	pool.GoCtx(func(routineCtx context.Context) {
		logger := log.Ctx(routineCtx).With().Str(logs.ProviderName, p.name).Logger()
		ctxLog := logger.WithContext(routineCtx)

		operation := func() error {
			ctx, cancel := context.WithCancel(ctxLog)
			defer cancel()

			serviceEventsChan, err := p.pollOrWatch(ctx)
			if err != nil {
				logger.Error().Err(err).Msg("Error watching nomad events")
				return err
			}

			throttleDuration := time.Duration(p.ThrottleDuration)
			throttledChan := throttleEvents(ctx, throttleDuration, pool, serviceEventsChan)
			if throttledChan != nil {
				serviceEventsChan = throttledChan
			}

			for {
				select {
				case <-ctx.Done():
					return nil
				case event := <-serviceEventsChan:
					// Note that event is the *first* event that came in during this
					// throttling interval -- if we're hitting our throttle, we may have
					// dropped events. This is fine, because we don't treat different
					// event types differently. But if we do in the future, we'll need to
					// track more information about the dropped events.
					conf, err := p.loadConfiguration(ctx)
					if err != nil {
						logger.Error().Err(err).Msg("Unable to build the configuration")
						continue
					}

					confHash, err := hashstructure.Hash(conf, nil)

Review comment (suggestion):
```suggestion
				return fmt.Errorf("error watching nomad events: %w", err)
```

Code after:
	if p.name == "" {
		p.name = providerName
	}

	return nil
}

// Provide allows the Nomad Traefik Provider to provide configurations to traefik
// using the given configuration channel.
func (p *Provider) Provide(configurationChan chan<- dynamic.Message, pool *safe.Pool) error {
	var err error
	p.client, err = createClient(p.namespace, p.Endpoint)
	if err != nil {
		return fmt.Errorf("failed to create nomad API client: %w", err)
	}

	pool.GoCtx(func(routineCtx context.Context) {
		logger := log.Ctx(routineCtx).With().Str(logs.ProviderName, p.name).Logger()
		ctxLog := logger.WithContext(routineCtx)

		operation := func() error {
			ctx, cancel := context.WithCancel(ctxLog)
			defer cancel()

			serviceEventsChan, err := p.pollOrWatch(ctx)
			if err != nil {
				return fmt.Errorf("watching Nomad events: %w", err)
			}

			throttleDuration := time.Duration(p.ThrottleDuration)
			throttledChan := throttleEvents(ctx, throttleDuration, pool, serviceEventsChan)
			if throttledChan != nil {
				serviceEventsChan = throttledChan
			}

			conf, err := p.loadConfiguration(ctx)
			if err != nil {
				return fmt.Errorf("loading configuration: %w", err)
			}
			if _, err := p.updateLastConfiguration(conf); err != nil {
				return fmt.Errorf("updating last configuration: %w", err)
			}

			configurationChan <- dynamic.Message{
				ProviderName:  p.name,
				Configuration: conf,
			}

			for {
				select {
				case <-ctx.Done():