For initial installations, see the [Setup topics](https://kubernetes.io/docs/setup/pick-right-solution/) in the Kubernetes documentation.

To upgrade to this release from a previous version, first take any actions required [Before Upgrading](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.9.md#before-upgrading).

     * @param map the map
     * @param key the key with which the specified value is to be associated
     * @param value the value to be associated with the specified key
     * @return the previous value associated with the specified key, or the specified value if the key was not present
     * @see ConcurrentHashMap#putIfAbsent(Object, Object)
     */

# Dependency Olarak Class'lar { #classes-as-dependencies }

**Dependency Injection** sistemine daha derinlemesine geçmeden önce, bir önceki örneği geliştirelim.

## Önceki Örnekten Bir `dict` { #a-dict-from-the-previous-example }

Önceki örnekte, dependency'mizden ("dependable") bir `dict` döndürüyorduk:

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}

Ama sonra *path operation function* içindeki `commons` parametresinde bir `dict` alıyoruz.

若你的應用「很簡單」，這可能「不是問題」，你可能不需要指定嚴格的記憶體限制。但如果你「使用大量記憶體」（例如使用機器學習模型），你應該檢查實際消耗的記憶體，並調整「每台機器上執行的容器數量」（也許還要為叢集加機器）。

若你採用「每個容器多個行程」，你就得確保啟動的行程數量不會「超過可用記憶體」。

## 啟動前的前置步驟與容器 { #previous-steps-before-starting-and-containers }

如果你使用容器（例如 Docker、Kubernetes），那有兩種主要做法可用。

### 多個容器 { #multiple-containers }

    @Nullable Comparator<? super V> valueComparator;
    @Nullable Object[] alternatingKeysAndValues;
    int size;
    boolean entriesUsed;

    /**
     * If non-null, a duplicate key we found in a previous buildKeepingLast() or buildOrThrow()
     * call. A later buildOrThrow() can simply report this duplicate immediately.
     */
    @Nullable DuplicateKey duplicateKey;

    /**

				return
			}
			r := rand.New(rand.NewSource(time.Now().UnixNano()))
			for {
				if err := z.Decommission(ctx, poolIndices...); err != nil {
					if errors.Is(err, errDecommissionAlreadyRunning) {
						// A previous decommission running found restart it.
						for _, idx := range poolIndices {
							z.doDecommissionInRoutine(ctx, idx)
						}
						return
					}
					if configRetriableErrors(err) {

* Fix device mountable volume names in DSW to prevent races in device mountable plugin, e.g. local. ([#71509](https://github.com/kubernetes/kubernetes/pull/71509), [@cofyc](https://github.com/cofyc))
* Fixes a bug in previous releases where a pod could be placed inside another pod's cgroup when specifying --cgroup-root ([#70678](https://github.com/kubernetes/kubernetes/pull/70678), [@dashpole](https://github.com/dashpole))

Container image'ları, Docker, Kubernetes vb. konuları ilerideki bir bölümde daha detaylı anlatacağım: [Container'larda FastAPI - Docker](docker.md).

///

## Başlatmadan Önceki Adımlar { #previous-steps-before-starting }

Uygulamanızı **başlatmadan önce** bazı adımlar yapmak isteyeceğiniz birçok durum vardır.

Örneğin **database migrations** çalıştırmak isteyebilirsiniz.

                    break;
                }

                if (nextHead != null) {
                    // prepare remaining
                    // (e.g. set session/tree/fileid returned by the previous requests)
                    resp.prepare(nextHead);
                }
                curHead = nextHead;
            } finally {
                CommonServerMessageBlockRequest curReq = thisReq;

# Classes como Dependências { #classes-as-dependencies }

Antes de nos aprofundarmos no sistema de **Injeção de Dependência**, vamos melhorar o exemplo anterior.

## `dict` do exemplo anterior { #a-dict-from-the-previous-example }

No exemplo anterior, nós retornávamos um `dict` da nossa dependência ("injetável"):

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}