- A new kubelet metric `image_pull_duration_seconds` was added. The metric tracks the duration (in seconds) it takes for an image to be pulled, including the time spent in the waiting queue of image puller. The metric is broken down by bucketed image size. ([#121719](https://github.com/kubernetes/kubernetes/pull/121719), [@ruiwen-zhao](https://github.com/ruiwen-zhao))

        final IndexRequestBuilder builder = client.prepareIndex().setIndex(asEsIndex()).setSource(toSource(esEntity));
        final String id = esEntity.asDocMeta().id();
        if (id != null) {
            builder.setId(id);
        }
        final RequestOptionCall<IndexRequestBuilder> indexOption = esEntity.asDocMeta().indexOption();
        if (indexOption != null) {
            indexOption.callback(builder);
        }

    private static final long serialVersionUID = 1L;

    private OptionalEntity<CrawlingInfo> crawlingInfo;

    public String getId() {
        return asDocMeta().id();
    }

    public void setId(final String id) {
        asDocMeta().id(id);
    }

    public Long getVersionNo() {
        return asDocMeta().version();
    }

    public void setVersionNo(final Long version) {

  
  - `apiserver_authentication_config_controller_last_config_info` metric after successfully loading the authentication configuration file.
  - `apiserver_authorization_config_controller_last_config_info` metric after successfully loading the authorization configuration file.

    void setUrl(String url);

    String getBasedir();

    default Path getBasedirPath() {
        return Paths.get(getBasedir());
    }

    String getProtocol();

    String getId();

    void setId(String id);

    ArtifactRepositoryPolicy getSnapshots();

    void setSnapshotUpdatePolicy(ArtifactRepositoryPolicy policy);

    ArtifactRepositoryPolicy getReleases();

    int digits = RANDOM_SOURCE.nextInt(numBits);
    if (digits == 0) {
      return new BigInteger(1, RANDOM_SOURCE);
    } else {
      return new BigInteger(digits, RANDOM_SOURCE).setBit(digits);
    }
  }

  /**
   * Equivalent to calling randomPositiveBigInteger(numBits) and then flipping the sign with 50%
   * probability.
   */
  static BigInteger randomNonZeroBigInteger(int numBits) {

        assertEquals(basedir, new File(repo.getBasedir()));
    }

    @Test
    void testAuthenticationHandling() {
        Server server = new Server();
        server.setId("repository");
        server.setUsername("jason");
        server.setPassword("abc123");

        ArtifactRepository repository =

    private static final long serialVersionUID = 1L;

    private Map<String, Object> fields;

    @Override
    public String getId() {
        return asDocMeta().id();
    }

    public void setId(final String id) {
        asDocMeta().id(id);
    }

    @Override
    public Long getVersionNo() {
        return asDocMeta().version();
    }

    public void setVersionNo(final Long version) {

- HPA controller exposes the following metrics from the kube-controller-manager. 
  - `metric_computation_duration_seconds`: The time(seconds) that the HPA controller takes to calculate one metric.
  - `metric_computation_total`: Number of metric computations. ([#116326](https://github.com/kubernetes/kubernetes/pull/116326), [@sanposhiho](https://github.com/sanposhiho)) [SIG Apps, Autoscaling and Instrumentation]

        final IndexRequestBuilder builder = client.prepareIndex().setIndex(asEsIndex()).setSource(toSource(esEntity));
        final String id = esEntity.asDocMeta().id();
        if (id != null) {
            builder.setId(id);
        }
        final RequestOptionCall<IndexRequestBuilder> indexOption = esEntity.asDocMeta().indexOption();
        if (indexOption != null) {
            indexOption.callback(builder);
        }