/// tip | 팁

**컨테이너**, Docker, Kubernetes에 대한 일부 내용이 아직은 잘 이해되지 않아도 괜찮습니다.

다음 장에서 컨테이너 이미지, Docker, Kubernetes 등을 더 설명하겠습니다: [컨테이너에서 FastAPI - Docker](docker.md).

///

## 시작 전 사전 단계 { #previous-steps-before-starting }

애플리케이션을 **시작하기 전에** 어떤 단계를 수행하고 싶은 경우가 많습니다.

예를 들어 **데이터베이스 마이그레이션**을 실행하고 싶을 수 있습니다.

하지만 대부분의 경우, 이런 단계는 **한 번만** 수행하고 싶을 것입니다.

 with its <<<DefaultModelBuilder>>> implementation
 ({{{./apidocs/org/apache/maven/model/building/DefaultModelBuilder.html}javadoc}},
 {{{./xref/org/apache/maven/model/building/DefaultModelBuilder.html}source}})
 that manages the steps sequence.

 The sequence is divided into 2 phases:

 * phase 1

   ** profile activation: see {{{./apidocs/org/apache/maven/model/profile/activation/package-summary.html}available activators}}.

* Imposer la sécurité, l’authentification, des exigences de rôles, etc.
* Et bien d’autres choses ...

Tout cela, en minimisant la répétition de code.

## Premiers pas { #first-steps }

Voyons un exemple très simple. Il sera tellement simple qu’il n’est pas très utile, pour l’instant.

Mais de cette façon nous pouvons nous concentrer sur le fonctionnement du système d’**injection de dépendances**.

したがって、以下はすべて異なるオリジンです:

* `http://localhost`
* `https://localhost`
* `http://localhost:8080`

すべて `localhost` であっても、異なるプロトコルやポートを使用するので、異なる「オリジン」です。

## ステップ { #steps }

そして、ブラウザ上で実行されているフロントエンド (`http://localhost:8080`) があり、そのJavaScriptが `http://localhost` で実行されているバックエンドと通信するとします。(ポートを指定していないので、ブラウザはデフォルトの`80`ポートを使用します)

    assertEquals(68, (int) mmHeap.peek());
    assertEquals(0, (int) mmHeap.peekLast());
  }

  private <T extends Comparable<T>> void runIterator(List<T> values, int steps) throws Exception {
    IteratorTester<T> tester =
        new IteratorTester<T>(
            steps,
            IteratorFeature.MODIFIABLE,
            new LinkedList<>(values),
            IteratorTester.KnownOrder.UNKNOWN_ORDER) {

labels.crawling_info_link_details=Detail
labels.crawling_info_link_create=Buat
labels.crawling_info_link_update=Ubah
labels.crawling_info_link_delete=Hapus
labels.crawling_info_session_id_search=ID Sesi
labels.crawling_info_session_id=ID Sesi
labels.crawling_info_created_time=Dibuat
labels.crawling_info_delete_all_link=Hapus Semua
labels.crawling_info_delete_all_confirmation=Apakah Anda yakin ingin menghapus semua?

// A scriptedReader is an io.Reader that executes its steps sequentially.
type scriptedReader []func(p []byte) (n int, err error)

func (sr *scriptedReader) Read(p []byte) (n int, err error) {
	if len(*sr) == 0 {
		panic("too many Read calls on scripted Reader. No steps remain.")
	}
	step := (*sr)[0]
	*sr = (*sr)[1:]
	return step(p)
}

func newScriptedReader(steps ...func(p []byte) (n int, err error)) io.Reader {

    list.set(0, (byte) 4);
    assertThat(newArray).isEqualTo(new byte[] {(byte) 0, (byte) 1, (byte) 2});
    newArray[1] = (byte) 5;
    assertThat((byte) list.get(1)).isEqualTo((byte) 1);
  }

  // This test stems from a real bug found by andrewk
  public void testAsList_subList_toArray_roundTrip() {
    byte[] array = {(byte) 0, (byte) 1, (byte) 2, (byte) 3};
    List<Byte> list = Bytes.asList(array);

 * {@link CrawlerContainer}, {@link LogHelper}, {@link CrawlerClientFactory}, and {@link CrawlerContext},
 * to perform its tasks.
 * </p>
 *
 * <p>
 * The crawling process involves the following steps:
 * </p>
 * <ol>
 *   <li>Fetching a URL from the queue using {@link UrlQueueService#poll(String)}.</li>
 *   <li>Checking if the URL is valid using {@link #isValid(UrlQueue)}.</li>

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py hl[5,16:19,24] *}

/// info | Bilgi