- Kubernetes 1.12 includes a large number of metadata agent improvements, including expanding the metadata agent's access to all API groups and removing metadata agent config maps in favor of command line flags. It also includes improvements to the logging agent, such as multiple fixes and adjustments.

			cniClient := newCNIClient(cniEventAddr, constants.CNIAddEventPath)
			if err = PushCNIEvent(cniClient, args, prevResIps, podName, podNamespace); err != nil {
				log.Errorf("istio-cni cmdAdd failed to signal node Istio CNI agent: %s", err)
				return err
			}
			return nil
		}
		log.Debugf("istio-cni ambient cmdAdd podName: %s - not ambient enabled, ignoring", podName)
	}
	// End ambient plugin logic

	pi := &PodInfo{}

            searchLog.setReferer(StringUtils.abbreviate(req.getHeader("referer"), 1000));
            searchLog.setUserAgent(StringUtils.abbreviate(req.getHeader("user-agent"), 255));
            final Object accessType = req.getAttribute(Constants.SEARCH_LOG_ACCESS_TYPE);
            if (Constants.SEARCH_LOG_ACCESS_TYPE_JSON.equals(accessType)) {

            if (key.startsWith(CRAWLER_PARAM_PREFIX)) {
                factoryParamMap.put(key.substring(CRAWLER_PARAM_PREFIX.length()), entry.getValue());
            }
        }

        // user agent
        final String userAgent = paramMap.get(CRAWLER_USERAGENT);
        if (StringUtil.isNotBlank(userAgent)) {
            factoryParamMap.put(HcHttpClient.USER_AGENT_PROPERTY, userAgent);
        }

    public static final String CRAWLING_THREAD_COUNT_PROPERTY = "crawling.thread.count";

    public static final String CRAWLING_USER_AGENT_PROPERTY = "crawling.user.agent";

    public static final String DAY_FOR_CLEANUP_PROPERTY = "day.for.cleanup";

    public static final String WEB_API_JSON_PROPERTY = "web.api.json";

labels.replacement=Ersetzung
labels.sessionId=Session-ID
labels.sortOrder=Sortierreihenfolge
labels.updatedBy=Aktualisiert von
labels.updatedTime=Aktualisierungszeit
labels.urls=URLs
labels.userAgent=User Agent
labels.username=Benutzername
labels.value=Wert
labels.versionNo=Version
labels.cronExpression=Zeitplan
labels.dayForCleanup=Entferne Dokumente älter als Tage
labels.crawlingThreadCount=Anzahl gleichzeitiger Crawler

### Other notable changes

* Metadata Agent Improvements ([#66485](https://github.com/kubernetes/kubernetes/pull/66485), [@bmoyles0117](https://github.com/bmoyles0117))
    * Bump metadata agent version to 0.2-0.0.21-1.
    * Expand the metadata agent's access to all API groups.
    * Remove metadata agent config maps in favor of command line flags.

   * by the application:
   *
   * * It may be transformed by the user's interceptors. For example, an application interceptor
   *   may add headers like `User-Agent`.
   * * It may be the request generated in response to an HTTP redirect or authentication
   *   challenge. In this case the request URL may be different than the initial request URL.
   *

labels.replacement	=	Remplacement
labels.sessionId	=	ID de session
labels.sortOrder	=	Ordre d'affichage
labels.updatedBy	=	Mis à jour par
labels.updatedTime	=	Heure mise à jour
labels.urls	=	URL
labels.userAgent	=	Agent utilisateur
labels.username	=	Nom d'utilisateur
labels.value	=	Valeur
labels.versionNo	=	Numéro de version
labels.cronExpression	=	Programmation
labels.dayForCleanup	=	Supprimer les documents avant les jours

	"istio.io/istio/pkg/monitoring"
)

var (
	eventTypeTag = monitoring.CreateLabel("type")
	EventTotals  = monitoring.NewSum(
		"nodeagent_reconcile_events_total",
		"The total number of node agent reconcile events.",
	)
)

type K8sHandlers interface {
	GetPodIfAmbient(podName, podNamespace string) (*corev1.Pod, error)
	GetActiveAmbientPodSnapshot() []*corev1.Pod
	Start()
}