delivery_mode  (number)    set to '1' for non-persistent or '2' for persistent queue
queue_dir      (path)      staging dir for undelivered messages e.g. '/home/events'
queue_limit    (number)    maximum limit for undelivered messages, defaults to '100000'
comment        (sentence)  optionally add a comment to this setting
```

Or environment variables

```
KEY:
notify_amqp[:name]  publish bucket notifications to AMQP endpoints

ARGS:

labels.facet_contentLength_10kto100k=content_length:[10000 TO 99999]\t\
labels.facet_contentLength_100kto500k=content_length:[100000 TO 499999]\t\
labels.facet_contentLength_500kto1m=content_length:[500000 TO 999999]\t\
labels.facet_contentLength_1m=content_length:[1000000 TO *]\n\
labels.facet_filetype_title:\
labels.facet_filetype_html=filetype:html\t\
labels.facet_filetype_word=filetype:word\t\

	logger.FatalIf(gm.RegisterStreamingHandler(grid.HandlerTrace, grid.StreamHandler{
		Handle:      server.TraceHandler,
		Subroute:    "",
		OutCapacity: 100000,
		InCapacity:  0,
	}), "unable to register handler")

	if r.ContentLength <= 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
		return
	}

	// The max. XML contains 100000 object names (each at most 1024 bytes long) + XML overhead
	const maxBodySize = 2 * 100000 * 1024

	if r.ContentLength > maxBodySize {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
		return

    assertThat(parse("http://[2001:db8:0:0:1:0:0:1]/").host).isEqualTo("2001:db8::1:0:0:1")
    assertThat(parse("http://[2001:0:0:1:0:0:0:1]/").host).isEqualTo("2001:0:0:1::1")
    assertThat(parse("http://[1:0:0:0:0:0:0:0]/").host).isEqualTo("1::")
    assertThat(parse("http://[0:0:0:0:0:0:0:1]/").host).isEqualTo("::1")
    assertThat(parse("http://[0:0:0:0:0:0:0:0]/").host).isEqualTo("::")

	return disk.MakeVolBulk(context.TODO(), volumes...)
}

// Initialize a new storage disk.
func newXLStorage(ep Endpoint, cleanUp bool) (s *xlStorage, err error) {
	immediatePurgeQueue := 100000
	if globalIsTesting || globalIsCICD {
		immediatePurgeQueue = 1
	}

	ctx, cancel := context.WithCancel(GlobalContext)

	s = &xlStorage{
		drivePath:            ep.Path,
		endpoint:             ep,