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* update reference to 1.17 (#18791) * update endpoint slices to beta (#18794) * update feature gate to 1.17 (#18799) * update feature gate to 1.17 * Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md Co-Authored-By: inductor <kohei.ota@zozo.com> Co-authored-by: inductor <kohei.ota@zozo.com> * Update links to ja docs (home/, tasks/tools/install-kubectl/, concepts/services-networking/service/) (#18930) * update link to /ja/docs/home/ * update link to /ja/docs/tasks/tools/install-kubectl/ * update link to /ja/docs/concepts/services-networking/service/ * Translate tasks/administer-cluster/enabling-endpointslices.md in Japanese (#18140) (#18873) * Translate tasks/administer-cluster/enabling-endpointslices.md in Japanese (#18140) * Update enabling-endpointslices.md * Update content/ja/docs/tasks/administer-cluster/enabling-endpointslices.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/administer-cluster/enabling-endpointslices.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/administer-cluster/enabling-endpointslices.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/administer-cluster/enabling-endpointslices.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update enabling-endpointslices.md * Update enabling-endpointslices.md * Update content/ja/docs/tasks/administer-cluster/enabling-endpointslices.md Co-Authored-By: Takuya Tokuda <cs.toku.mail@gmail.com> * Update content/ja/docs/tasks/administer-cluster/enabling-endpointslices.md Co-Authored-By: Takuya Tokuda <cs.toku.mail@gmail.com> * Update enabling-endpointslices.md Co-authored-by: Naoki Oketani <okepy.naoki@gmail.com> Co-authored-by: Takuya Tokuda <cs.toku.mail@gmail.com> * update share process namespace (#19011) * Revert trailing whitespaces (#18988) * Correct a wrong resource name: Endpoint (#18954) * Correct a wrong resource name: Endpoint * Revert spaces at end of line * Update links to ja docs (concepts/workloads/) (#18959) * update link to /ja/docs/concepts/workloads/controllers/deployment/ * update link to /ja/docs/concepts/workloads/controllers/replicaset/ * update link to /ja/docs/concepts/workloads/controllers/statefulset/ * update link to /ja/docs/concepts/workloads/controllers/daemonset/ * update link to /ja/docs/concepts/workloads/pods/pod-overview/ * update link to /ja/docs/concepts/workloads/pods/pod/ * revert spaces at end of line * revert spaces at end of line * Replace links with redirect destination * partially update link to /ja/docs/concepts/workloads/pods/pod-lifecycle/ * Update daemonset to 1.17 (#18793) * update daemonset to 1.17 * Update content/ja/docs/concepts/workloads/controllers/daemonset.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/workloads/controllers/daemonset.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * apply review Co-authored-by: Naoki Oketani <okepy.naoki@gmail.com> Co-authored-by: nasa9084 <nasa9084@users.noreply.github.com> * remove ctrl-h (#19067) * remove reviewers block (#19091) * update link to /ja/docs/tasks/tools/install-minikube/ (#19147) * translate networking (#19134) * translate networking * apply review * apply review * Update content/ja/docs/concepts/cluster-administration/networking.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * nit Co-authored-by: nasa9084 <nasa9084@users.noreply.github.com> * update link to /ja/docs/concepts/overview/components/ (#19194) * fix a wrong field name (#19256) * update link to /ja/docs/concepts/configuration/assign-pod-node/ (#19324) * Translate docs/concepts/storage/persistent-volumes.md into Japanese (#19074) * translate content/ja/docs/concepts/storage/persistent-volumes.md into Japanese * Update content/ja/docs/concepts/storage/persistent-volumes.md translate title Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md fix missing translation Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md conform to translation style guide Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * conform to translation style guide * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * fix translation refer: https://github.com/kubernetes/website/pull/19074/files#r378950194 * fix translation * fix translation ref: https://github.com/kubernetes/website/pull/19074#discussion_r378931787 * fix translation ref: https://github.com/kubernetes/website/pull/19074#discussion_r378829190 * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * fix translation * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * fix translation follow https://github.com/kubernetes/website/pull/19074#discussion_r382130660 * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * fix translation https://github.com/kubernetes/website/pull/19074#discussion_r378811021 * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: bells17 <bells171@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/concepts/storage/persistent-volumes.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * fix translation https://github.com/kubernetes/website/pull/19074/files#r380769175 * fix translation https://github.com/kubernetes/website/pull/19074#discussion_r380745506 * fix translation https://github.com/kubernetes/website/pull/19074#discussion_r381264848 Co-authored-by: Naoki Oketani <okepy.naoki@gmail.com> Co-authored-by: bells17 <bells171@gmail.com> Co-authored-by: nasa9084 <nasa9084@users.noreply.github.com> * update link to /ja/docs/tutorials/hello-minikube/ and /ja/docs/concepts/architecture/nodes/ (#19515) * Translate tasks/configure-pod-container/configure-projected-volume-storage.md into Japanese (#19240) * copy from content/en/docs/tasks/configure-pod-container/configure-projected-volume-storage.md Signed-off-by: Takuma Hashimoto <takumaxd+github@gmail.com> * Translate content/ja/docs/tasks/configure-pod-container/configure-projected-volume-storage.md into Japanese Signed-off-by: Takuma Hashimoto <takumaxd+github@gmail.com> * fix translation https://kubernetes.io/ja/docs/tasks/debug-application-cluster/get-shell-running-container/ にて、「シェルを取得する」という表現が用いられているため、そちらに合わせる Signed-off-by: Takuma Hashimoto <takumaxd+github@gmail.com> * fix terminology 投影 -> Projected (#19641) * translate configure-access-multiple-clusters into Japanese (#19563) * translate configure-access-multiple-clusters into Japanese * reflect PR feedback * Translate concepts/cluster-administration/cluster-administration-overview.md into Japanese #18829 (#19258) * ja-trans: translate concepts/cluster-administration/cluster-administration-overview.md into Japanese (#18829) * ja-trans: Improve Japanese translation in concepts/cluster-administration/cluster-administration-overview.md (#18829) * ja-trans: Improve Japanese translation in concepts/cluster-administration/cluster-administration-overview.md (#18829) * Translate tasks/service-catalog/install-service-catalog-using-helm/ in Japanese (#19776) * issue 18957 * translate a reference file * Update content/ja/docs/reference/glossary/service-catalog.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/reference/glossary/service-catalog.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Update content/ja/docs/tasks/service-catalog/install-service-catalog-using-helm.md Co-Authored-By: Naoki Oketani <okepy.naoki@gmail.com> * Apply suggestions from code review Co-Authored-By: Tim Bannister <tim@scalefactory.com> * Apply suggestions from code review Co-Authored-By: Tim Bannister <tim@scalefactory.com> Co-authored-by: Naoki Oketani <okepy.naoki@gmail.com> Co-authored-by: inductor <kohei.ota@zozo.com> Co-authored-by: Tim Bannister <tim@scalefactory.com> * Fix dead link of api-conventions doc (#19801) Co-authored-by: Naoki Oketani <okepy.naoki@gmail.com> Co-authored-by: Jin Hase <hase.jin@jp.fujitsu.com> Co-authored-by: Takuya Tokuda <cs.toku.mail@gmail.com> Co-authored-by: nasa9084 <nasa9084@users.noreply.github.com> Co-authored-by: Takahashi Tomohiko <takahashi@tomohiko.io> Co-authored-by: bells17 <bells171@gmail.com> Co-authored-by: Takuma Hashimoto <takumaxd+github@gmail.com> Co-authored-by: Joe Kamibeppu <joekamibeppu@gmail.com> Co-authored-by: Keita Akutsu <kakts.git@gmail.com> Co-authored-by: SatoruItaya <44042909+SatoruItaya@users.noreply.github.com> Co-authored-by: Tim Bannister <tim@scalefactory.com> Co-authored-by: KoyamaSohei <koyamaso0309@gmail.com>
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---
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title: アプリケーションの複数インスタンスを実行
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weight: 10
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---
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<!DOCTYPE html>
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<html lang="ja">
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<body>
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<link href="/docs/tutorials/kubernetes-basics/public/css/styles.css" rel="stylesheet">
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<div class="layout" id="top">
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<main class="content">
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<div class="row">
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<div class="col-md-8">
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<h3>目標</h3>
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<ul>
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<li>kubectlを使用してアプリケーションをスケールする</li>
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</ul>
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</div>
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<div class="col-md-8">
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<h3>アプリケーションのスケーリング</h3>
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<p>前回のモジュールでは、<a href="/ja/docs/concepts/workloads/controllers/deployment/">Deployment</a>を作成し、それを<a href="/ja/docs/concepts/services-networking/service/">Service</a>経由で公開しました。該当のDeploymentでは、アプリケーションを実行するためのPodを1つだけ作成しました。トラフィックが増加した場合、ユーザーの需要に対応するためにアプリケーションをスケールする必要があります。</p>
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<p><b>スケーリング</b>は、Deploymentのレプリカの数を変更することによって実現可能です。</p>
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</div>
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<div class="col-md-4">
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<div class="content__box content__box_lined">
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<h3>まとめ</h3>
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<ul>
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<li>Deploymentのスケーリング</li>
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</ul>
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</div>
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<div class="content__box content__box_fill">
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<p><i>kubectl runコマンドの--replicasパラメーターを使用することで、最初から複数のインスタンスを含むDeploymentを作成できます。</i></p>
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</div>
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</div>
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</div>
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<br>
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<div class="row">
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<div class="col-md-8">
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<h2 style="color: #3771e3;">スケーリングの概要</h2>
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</div>
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</div>
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<div class="row">
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<div class="col-md-1"></div>
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<div class="col-md-8">
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<div id="myCarousel" class="carousel" data-ride="carousel" data-interval="3000">
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<ol class="carousel-indicators">
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<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
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<li data-target="#myCarousel" data-slide-to="1"></li>
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</ol>
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<div class="carousel-inner" role="listbox">
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<div class="item carousel-item active">
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<img src="/docs/tutorials/kubernetes-basics/public/images/module_05_scaling1.svg">
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</div>
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<div class="item carousel-item">
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<img src="/docs/tutorials/kubernetes-basics/public/images/module_05_scaling2.svg">
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</div>
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</div>
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<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
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<span class="sr-only ">前</span>
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</a>
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<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
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<span class="sr-only">次</span>
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</a>
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</div>
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<br>
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<div class="row">
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<div class="col-md-8">
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<p>Deploymentをスケールアウトすると、新しいPodが作成され、使用可能なリソースを持つノードにスケジュールされます。スケールすると、Podの数が増えて新たな望ましい状態になります。KubernetesはPodの<a href="/docs/user-guide/horizontal-pod-autoscaling/">オートスケーリング</a>もサポートしていますが、このチュートリアルでは範囲外です。スケーリングを0に設定することも可能で、指定された配置のすべてのPodを終了させます。</p>
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<p>アプリケーションの複数インスタンスを実行するには、それらすべてにトラフィックを分散する方法が必要になります。Serviceには、公開されたDeploymentのすべてのPodにネットワークトラフィックを分散する統合ロードバランサがあります。Serviceは、エンドポイントを使用して実行中のPodを継続的に監視し、トラフィックが使用可能なPodにのみ送信されるようにします。</p>
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</div>
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<div class="col-md-4">
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<div class="content__box content__box_fill">
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<p><i>スケーリングは、Deploymentのレプリカの数を変更することによって実現可能です。</i></p>
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</div>
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</div>
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</div>
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<br>
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<div class="row">
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<div class="col-md-8">
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<p>アプリケーションの複数のインスタンスを実行すると、ダウンタイムなしでローリングアップデートを実行できます。それについては、次のモジュールで学習します。それでは、オンラインのターミナルを使って、アプリケーションをデプロイしてみましょう。</p>
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</div>
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</div>
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<br>
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<div class="row">
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<div class="col-md-12">
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<a class="btn btn-lg btn-success" href="/ja/docs/tutorials/kubernetes-basics/scale/scale-interactive/" role="button">対話型のチュートリアルを始める <span class="btn__next">›</span></a>
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</div>
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</div>
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</main>
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</div>
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</body>
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</html>
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