- Promoted the `APIServerTracing` feature gate to GA. The `--tracing-config-file` flag now accepts `TracingConfiguration` in version `apiserver.config.k8s.io/v1` (with no changes from `apiserver.config.k8s.io/v1beta1`). ([#132340](https://github.com/kubernetes/kubernetes/pull/132340), [@dashpole](https://github.com/dashpole)) [SIG API Machinery...

    return (ImmutableList<E>) EMPTY;
  }

  /**
   * Returns an immutable list containing a single element. This list behaves and performs
   * comparably to {@link Collections#singletonList}, but will not accept a null element. It is
   * preferable mainly for consistency and maintainability of your code.
   *
   * @throws NullPointerException if the element is null
   */
  public static <E> ImmutableList<E> of(E e1) {

      }

      @Override
      public void forEach(Consumer<? super Entry<K, V>> action) {
        checkNotNull(action);
        for (Node<K, V> node = head; node != null; node = node.next) {
          action.accept(node);
        }
      }
    }
    return new EntriesImpl();
  }

  @Override
  Iterator<Entry<K, V>> entryIterator() {
    throw new AssertionError("should never be called");
  }

Si vous la définissez à `--forwarded-allow-ips="*"`, elle fera confiance à toutes les IP entrantes.

Si votre **serveur** est derrière un **proxy** de confiance et que seul le proxy lui parle, cela fera accepter l'IP de ce **proxy**, quelle qu'elle soit.

<div class="termy">

```console
$ fastapi run --forwarded-allow-ips="*"

      var = False
    else:
      raise UserInputError(
          'Environment variable %s must be set as a boolean indicator.\n'
          'The following are accepted as TRUE : %s.\n'
          'The following are accepted as FALSE: %s.\n'
          'Current value is %s.' %
          (var_name, ', '.join(true_strings), ', '.join(false_strings), var))

  while var is None:

  private static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> fromEntries(
      Entry<K, V>... entries) {
    return fromEntries(Ordering.natural(), false, entries, entries.length);
  }

  /**
   * Accepts a collection of possibly-null entries. If {@code sameComparator}, then it is assumed
   * that they do not need to be sorted or checked for dupes.
   */
  private static <K, V> ImmutableSortedMap<K, V> fromEntries(

                    final BiConsumer<Map<String, Object>, IndexRequestBuilder> options) {
                sentIndex.set(index);
                docList.forEach(x -> options.accept(x, new IndexRequestBuilder(this, IndexAction.INSTANCE)));
                sentDocList.addAll(docList);
                return new BulkResponse(new BulkItemResponse[0], documentSizeByQuery);
            }

   * @return the count of the element before the operation; possibly zero
   * @throws IllegalArgumentException if {@code occurrences} is negative
   */
  /*
   * TODO(cpovirk): remove and removeExactly currently accept null inputs only
   * if occurrences == 0. This satisfies both NullPointerTester and
   * CollectionRemoveTester.testRemove_nullAllowed, but it's not clear that it's

        // parameters but this is sufficient for now. Ultimately we want components like Builders to provide a way to
        // extend the command line to accept its own configuration parameters.
        //
        if (context.options().threads().isPresent()) {
            int degreeOfConcurrency =
                    calculateDegreeOfConcurrency(context.options().threads().get());

If you set it to `--forwarded-allow-ips="*"` it would trust all the incoming IPs.

If your **server** is behind a trusted **proxy** and only the proxy talks to it, this would make it accept whatever is the IP of that **proxy**.

<div class="termy">

```console
$ fastapi run --forwarded-allow-ips="*"