First Japanese l10n work for release-1.14 (#16115)
* Translate concepts/workloads/pods/pod/ in Japanese (#13671) * [ja] Copy en/docs/concepts/workloads/pods/pod.md into ja/ * [ja] Translate docs/concepts/workloads/pods/pod/ * [ja] Modify translation of docs/concepts/workloads/pods/pod/ Reflect review - add trailing 'ー' to some technical terms * [ja] Fix translation of 'Persistent Volumes' (#13848) s/永続化ボリューム/永続ボリューム/g * Translated cron-jobs.md in Japanese (#13937) * Translate cron-jobs.md in Japanese (#13392) * Update cron-jobs.md * Create automated-tasks-with-cron-jobs.md in Japanese directory * Fix translation (#13392) * Translate cron-jobs.md in Japanese (#13392) * Update cron-jobs.md * Create automated-tasks-with-cron-jobs.md in Japanese directory * Revert "Create automated-tasks-with-cron-jobs.md in Japanese directory" This reverts commit 739b01489634d749279c38b6ed5b90534bf7d29d. * Revert "Create automated-tasks-with-cron-jobs.md in Japanese directory" This reverts commit 739b01489634d749279c38b6ed5b90534bf7d29d. * Fix conflict (#13392) * Revert "Revert "Create automated-tasks-with-cron-jobs.md in Japanese directory"" This reverts commit c5fc9d93d6d789a13a0a28ec4b85f9e7aeb81e38. * Revert "Revert "Revert "Create automated-tasks-with-cron-jobs.md in Japanese directory""" This reverts commit 095e760c6deb620da548d06a851c8f7ade71a15d. * Fix that as it was pointed out (#13392) * Delete double same sesntence (#13392) * copy includes directory (#14020) * Translate docs/home/_index.md into Japanese (#14068) (#14074) * Translate concepts/overview/components.md into Japanese (#14067) * Translate glossaries used in concepts/overview/components.md into Japanese (#14044) * Translate concepts/overview/components.md into Japanese (#14044) * Translate tasks/run-application/run-single-instance-stateful-application/ in Japanese (#13668) * Translate tasks/run-application/run-single-instance-stateful-application/ in Japanese * Apply suggestions from code review Co-Authored-By: sotoiwa <sotoiwa@gmail.com> * Better translation from code review * Translate tasks/access-application-cluster/service-access-application-cluster/ in Japanese (#13701) * Update fluentd image (#13661) Signed-off-by: ialidzhikov <i.alidjikov@gmail.com> * update zh kubelet-config-file doc (#13495) * update zh kubelet-config-file doc * change kubelet config types address * add space between en words and zh words * revert en version change * correct container hyperlinks in init container (#12387) * correct container hyperlinks in init container * correct zh trans and update anchor inside page * Incorrect details about startingDeadlineSeconds.. (#13530) On this page, the default value of startingDeadlineSeconds is mentioned as 100 seconds which is not true. So removing this statement. * Fix typos (#13376) * add Nokia case study (#13676) * Fix typo in API page (#13687) Associated with #13686 * fix typo in pod-lifecycle (#13689) Asscociated with #13688 * issue 13383 * modify the link part * Revert "modify the link part" This reverts commit 2ae91dca574b54a14d255320721df4313346de28. * Revert "Revert "modify the link part"" This reverts commit e5b80b6258ce2210fc9a4b46e08fb8c000fe6330. * Revert "Revert "Revert "modify the link part""" This reverts commit 427916e7c6c4d6423222ff76b5fd8c12dc913ce1. * Revert "Merge remote-tracking branch 'origin/master' into issue_13383" This reverts commit 98099d805c7377826cb4d84bd0fece0f6362cb40, reversing changes made to 969e7f3f5cf63622e24137a2e374b0ab9e272514. * modify the link part * Translate /concepts/overview/working-with-objects/kubernetes-objects/ into Japanese (#14025) * Translate /concepts/overview/working-with-objects/kubernetes-objects/ into Japanese (#13952) * Apply suggestions to /concepts/overview/working-with-objects/kubernetes-objects/ from code review Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Translate concepts/overview/working-with-objects/names.md into Japanese (#14066) * Translate content/ja/docs/concepts/overview/working-with-objects/names.md into Japanese * Translate docs/reference/glossary/name.md into Japanese * Translate docs/reference/glossary/uid.md into Japanese * Apply suggestions to concepts/overview/working-with-objects/names.md from review comments * Translate concepts/overview/kubernetes-api.md into Japanese (#14343) * Translate concepts/overview/kubernetes-api.md into Japanese * Update translations for concepts/overview/kubernetes-api.md * Translate overview/working-with-objects/labels.md in Japanese (#14183) (#14319) * Translate overview/working-with-objects/labels.md in Japanese (#14183) * Update translations for concepts/overview/working-with-objects/labels.md. * Translate concepts/workloads/pods/pod-overview/ in Japanese (#14426) (#14494) * Translate concepts/workloads/pods/pod-overview/ in Japanese (#14426) * Update translation for concepts/workloads/pods/pod-overview.md. * Translate overview/working-with-objects/field-selectors.md in Japanese (#14350) (#14535) * Translate overview/working-with-objects/field-selectors.md in Japanese (#14350) * Update translations for concepts/overview/working-with-objects/field-selectors.md. * Update translation for concepts/overview/working-with-objects/field-selectors.md * Translate overview/working-with-objects/common-labels/ in Japanese (#14397) (#14403) * Translate overview/working-with-objects/common-labels/ in Japanese (#14397) * Update translation for concepts/overview/working-with-objects/common-labels.md * Translate concepts/storage/volume-snapshot-classes/ in Japanese (#14846) (#14849) * ja-trans: tasks/run-application/run-stateless-application-deployment/ (#14955) * ja-trans: tasks/run-application/run-stateless-application-deployment/ * modify "exploring" translation * ja-trans: concepts/containers/container-environment-variables/ (#14116) * ja-trans: concepts/containers/container-environment-variables/ * removed redundant expressions * ja-trans: Translate tasks/debug-application-cluster/get-shell-running… (#14146) * ja-trans: Translate tasks/debug-application-cluster/get-shell-running-container/ #13381 * Update content/ja/docs/tasks/debug-application-cluster/get-shell-running-container.md Fix typo Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * ja-trans: concepts/containers/container-lifecycle-hooks/ (#14169) * ja-trans: tasks/debug-application-cluster/debug-init-containers/ (#14488) * ja-trans: tasks/debug-application-cluster/debug-init-containers/ * modified traslation of should * Translate concepts/workloads/controllers/replicaset/ in Japanese (#14634) (#14641) * Translate concepts/workloads/controllers/replicaset.md in Japanese (#14634) * Improve japanese translation in concepts/workloads/controllers/replicaset.md (#14634) * Improve japanese translation in concepts/workloads/controllers/replicaset.md (#14634) * Translate concepts/overview/working-with-objects/annotations/ in Japanese (#13382) (#14396) * Translate overview/working-with-objects/annotations.md in Japanese (#13382) * Delete a empty line in concepts/overview/working-with-objects/annotations.md (#13382) * Update translation for concepts/overview/working-with-objects/anotations.md * ja-trans: tasks/run-application/scale-stateful-set/ (#15289) * [ja] Fix translation of 'Persistent Volumes' (#13848) s/永続化ボリューム/永続ボリューム/g * ja-trans: tasks/run-application/scale-stateful-set/ * Update content/ja/docs/tasks/run-application/scale-stateful-set.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/tasks/run-application/scale-stateful-set.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * added postpositional particle * ja-trans: tasks/debug-application-cluster/debug-stateful-set/ (#15282) * [ja] Fix translation of 'Persistent Volumes' (#13848) s/永続化ボリューム/永続ボリューム/g * ja-trans: tasks/debug-application-cluster/debug-stateful-set/ * ja-trans: tasks/debug-application-cluster/determine-reason-pod-failure/ (#14939) * [ja] Fix translation of 'Persistent Volumes' (#13848) s/永続化ボリューム/永続ボリューム/g * ja-trans: tasks/debug-application-cluster/determine-reason-pod-failure/ * ja-trans: unify the ending of sentences * follow the master branch update * reflect a suggestion and modify translation of container * ja-trans: tasks/run-application/delete-stateful-set/ (#15293) * [ja] Fix translation of 'Persistent Volumes' (#13848) s/永続化ボリューム/永続ボリューム/g * ja-trans: tasks/run-application/delete-stateful-set/ * Update content/ja/docs/tasks/run-application/delete-stateful-set.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/tasks/run-application/delete-stateful-set.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/tasks/run-application/delete-stateful-set.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/tasks/run-application/delete-stateful-set.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * modified traslation of backing * ja-trans: tasks/configure-pod-container/attach-handler-lifecycle-event/ (#14328) * Translate overview/working-with-objects/namespaces.md in Japanese (#14045) (#14161) * Translate overview/working-with-objects/namespaces.md in Japanese (#14045) * Update translations for concepts/overview/working-with-objects/namespaces.md * ja-trans: fix Japanese Translation in concepts/overview/working-with-objects/namespaces.md (#14045) * ja-trans: includes/default-storage-class-prereqs.md (#15376) * ja-trans: includes/default-storage-class-prereqs.md * Update content/ja/includes/default-storage-class-prereqs.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Translate tasks/run-application/run-replicated-stateful-application/ in Japanese (#15368) * Translate tasks/run-application/run-replicated-stateful-application/ in Japanese * add a base document in english * Update content/ja/docs/tasks/run-application/run-replicated-stateful-application.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/tasks/run-application/run-replicated-stateful-application.md Co-Authored-By: nasa9084 <nasa9084@users.noreply.github.com> * Update content/ja/docs/tasks/run-application/run-replicated-stateful-application.md Co-Authored-By: Kohei Ota <kohei.ota@zozo.com> * small fixs 「複製」という言葉を使わず「レプリケーション」と「クローン」に使い分けるように変更。 「ステートフルなアプリケーション」を「ステートフルアプリケーション」に変更。 * small fix * Translate concepts/workloads/pods/init-containers.md in Japanese (#14543) (#14576) * Translate concepts/workloads/pods/init-containers.md in Japanese (#14543) * Improve japanese translation in concepts/workloads/pods/init-containers.md (#14543) * Add new line in ja/concepts/workloads/pods/init-containers.md (#14543) * Add new line in ja/concepts/workloads/pods/init-containers.md (#14543) * translate contribute/_index.md to japanese. (#15406) * translate contribute/_index.md to japanese. * trim spaces. * Add missing translation. * Translate concepts/workloads/controllers/daemonset/ in Japanese #14761 (#14767) * Translate concepts/workloads/controllers/daemonset/ in Japanese (#14761) * ja-trans: Improve Japanese translation in concepts/workloads/controllers/daemonset.md (#14767) * Translate concepts/workloads/controllers/garbage-collection/ in Japanese (#14718) (#14720) * Translate concepts/workloads/controllers/garbage-collection/ in Japanese (#14718) * ja-trans: Improve Japanese translation in concepts/workloads/controllers/garbage-collection.md (#14718) * Translate concepts/workloads/pods/podpreset/ in Japanese (#14544) (#14581) * Translate concepts/workloads/pods/podpreset.md in Japanese (#14544) * Update translation for concepts/workloads/pods/podpreset.md. * ja-trans: Improve Japanese translation in concepts/workloads/pods/podpreset (#14544) * ja-trans: Improve Japanese translation in concepts/workloads/pods/podpreset (#14544) * ja-trans: Delete translated sentence in concepts/workloads/pods/podpreset (#14544) * ja-trans: Delete duplicated sentence in concepts/workloads/pods/podpreset (#14544) * Translate concepts/containers/runtime-class/ in Japanese (#14670) (#14673) * Translate concepts/containers/runtime-class.md in Japanese (#14670) * ja-trans: Improve Japanese translation in concepts/containers/runtime-class.md (#14670) * Translate concepts/services-networking/dns-pod-service/ in Japanese #14777 (#14805) * Translate concepts/services-networking/dns-pod-service/ in Japanese (#14777) * ja-trans: Improve Japanese translation in concepts/services-networking/dns-pod-service.md (#14777) * Translate concepts/workloads/controllers/statefulset/ in Japanese #14679 (#14696) * Translate concepts/workloads/controllers/statefulset.md in Japanese (#14679) * ja-trans: Improve Japanese translation in concepts/workloads/controllers/statefulset.md (#14679) * ja-trans: Improve some Japanese translation in concepts/workloads/controllers/statefulset.md (#14679) * ja-trans: Improve some titles in concepts/workloads/controllers/statefulset.md (#14679) * ja-trans: Improve some Japanese translations in concepts/workloads/controllers/statefulset.md (#14679) * Translate concepts/workloads/controllers/ttlafterfinished/ in Japanese #14734 (#14735) * Translate concepts/workloads/controllers/ttlafterfinished/ in Japanese (#14734) * ja-trans: Improve Japanese translation in concepts/workloads/controllers/ttlafterfinished.md (#14734) * ja-trans: Delete some Japanese words in concepts/workloads/controllers/ttlafterfinished.md (#14734) * ja-trans: Fix typo in concepts/workloads/controllers/ttlafterfinished.md (#14734) * Translate concepts/storage/dynamic-provisioning/ in Japanese #14847 (#14916) * Translate concepts/storage/dynamic-provisioning/ in Japanese (#14847) * ja-trans: Improve Japanese translation in concepts/storage/dynamic-provisioning.md (#14847) * ja-trans: Improve some Japanese translation in concepts/storage/dynamic-provisioning.md (#14847) * ja-trans: Improve some Japanese translations in concepts/storage/dynamic-provisioning.md (#14847)
This commit is contained in:
Takuya Tokuda
committed by
Kubernetes Prow Robot
Kubernetes Prow Robot
parent
6c4a4d8152
commit
abde921399
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---
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title: 単一レプリカのステートフルアプリケーションを実行する
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content_template: templates/tutorial
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weight: 20
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---
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{{% capture overview %}}
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このページでは、PersistentVolumeとDeploymentを使用して、Kubernetesで単一レプリカのステートフルアプリケーションを実行する方法を説明します。アプリケーションはMySQLです。
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{{% /capture %}}
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{{% capture objectives %}}
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* 自身の環境のディスクを参照するPersistentVolumeを作成します。
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* MySQLのDeploymentを作成します。
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* MySQLをDNS名でクラスター内の他のPodに公開します。
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{{% /capture %}}
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{{% capture prerequisites %}}
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* {{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
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* {{< include "default-storage-class-prereqs.md" >}}
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{{% /capture %}}
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{{% capture lessoncontent %}}
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## MySQLをデプロイする
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Kubernetes Deploymentを作成し、PersistentVolumeClaimを使用して既存のPersistentVolumeに接続することで、ステートフルアプリケーションを実行できます。
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たとえば、以下のYAMLファイルはMySQLを実行し、PersistentVolumeClaimを参照するDeploymentを記述しています。
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このファイルは/var/lib/mysqlのボリュームマウントを定義してから、20Gのボリュームを要求するPersistentVolumeClaimを作成します。
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この要求は、要件を満たす既存のボリューム、または動的プロビジョナーによって満たされます。
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注：パスワードはYAMLファイル内に定義されており、これは安全ではありません。安全な解決策については[Kubernetes Secret](/docs/concepts/configuration/secret/)を参照してください 。
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{{< codenew file="application/mysql/mysql-deployment.yaml" >}}
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{{< codenew file="application/mysql/mysql-pv.yaml" >}}
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1. YAMLファイルに記述されたPVとPVCをデプロイします。
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-pv.yaml
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1. YAMLファイルの内容をデプロイします。
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kubectl create -f https://k8s.io/examples/application/mysql/mysql-deployment.yaml
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1. 作成したDeploymentの情報を表示します。
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kubectl describe deployment mysql
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Name: mysql
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Namespace: default
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CreationTimestamp: Tue, 01 Nov 2016 11:18:45 -0700
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Labels: app=mysql
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Annotations: deployment.kubernetes.io/revision=1
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Selector: app=mysql
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Replicas: 1 desired | 1 updated | 1 total | 0 available | 1 unavailable
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StrategyType: Recreate
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MinReadySeconds: 0
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Pod Template:
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Labels: app=mysql
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Containers:
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mysql:
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Image: mysql:5.6
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Port: 3306/TCP
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Environment:
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MYSQL_ROOT_PASSWORD: password
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Mounts:
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/var/lib/mysql from mysql-persistent-storage (rw)
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Volumes:
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mysql-persistent-storage:
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Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
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ClaimName: mysql-pv-claim
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ReadOnly: false
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Conditions:
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Type Status Reason
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---- ------ ------
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Available False MinimumReplicasUnavailable
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Progressing True ReplicaSetUpdated
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OldReplicaSets: <none>
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NewReplicaSet: mysql-63082529 (1/1 replicas created)
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Events:
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FirstSeen LastSeen Count From SubobjectPath Type Reason Message
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--------- -------- ----- ---- ------------- -------- ------ -------
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33s 33s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set mysql-63082529 to 1
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1. Deploymentによって作成されたPodを一覧表示します。
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kubectl get pods -l app=mysql
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NAME READY STATUS RESTARTS AGE
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mysql-63082529-2z3ki 1/1 Running 0 3m
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1. PersistentVolumeClaimを確認します。
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kubectl describe pvc mysql-pv-claim
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Name: mysql-pv-claim
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Namespace: default
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StorageClass:
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Status: Bound
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Volume: mysql-pv-volume
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Labels: <none>
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Annotations: pv.kubernetes.io/bind-completed=yes
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pv.kubernetes.io/bound-by-controller=yes
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Capacity: 20Gi
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Access Modes: RWO
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Events: <none>
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## MySQLインスタンスにアクセスする
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前述のYAMLファイルは、クラスター内の他のPodがデータベースにアクセスできるようにするServiceを作成します。
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Serviceのオプションで`clusterIP: None`を指定すると、ServiceのDNS名がPodのIPアドレスに直接解決されます。
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このオプションは、ServiceのバックエンドのPodが1つのみであり、Podの数を増やす予定がない場合に適しています。
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MySQLクライアントを実行してサーバーに接続します。
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```
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kubectl run -it --rm --image=mysql:5.6 --restart=Never mysql-client -- mysql -h mysql -ppassword
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```
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このコマンドは、クラスター内にMySQLクライアントを実行する新しいPodを作成し、Serviceを通じてMySQLサーバーに接続します。
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接続できれば、ステートフルなMySQLデータベースが稼働していることが確認できます。
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```
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Waiting for pod default/mysql-client-274442439-zyp6i to be running, status is Pending, pod ready: false
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If you don't see a command prompt, try pressing enter.
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mysql>
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```
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## アップデート
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イメージまたはDeploymentの他の部分は、`kubectl apply`コマンドを使用して通常どおりに更新できます。
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ステートフルアプリケーションに固有のいくつかの注意事項を以下に記載します。
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* アプリケーションをスケールしないでください。このセットアップは単一レプリカのアプリケーション専用です。
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下層にあるPersistentVolumeは1つのPodにしかマウントできません。
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クラスター化されたステートフルアプリケーションについては、[StatefulSetのドキュメント](/docs/concepts/workloads/controllers/statefulset/)を参照してください。
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* Deploymentを定義するYAMLファイルでは`strategy: type: Recreate`を使用して下さい。
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この設定はKubernetesにローリングアップデートを使用 _しない_ ように指示します。
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同時に複数のPodを実行することはできないため、ローリングアップデートは使用できません。
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`Recreate`戦略は、更新された設定で新しいPodを作成する前に、最初のPodを停止します。
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## Deploymentの削除
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名前を指定してデプロイしたオブジェクトを削除します。
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```
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kubectl delete deployment,svc mysql
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kubectl delete pvc mysql-pv-claim
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kubectl delete pv mysql-pv-volume
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```
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PersistentVolumeを手動でプロビジョニングした場合は、PersistentVolumeを手動で削除し、また、下層にあるリソースも解放する必要があります。
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動的プロビジョニング機能を使用した場合は、PersistentVolumeClaimを削除すれば、自動的にPersistentVolumeも削除されます。
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一部の動的プロビジョナー(EBSやPDなど)は、PersistentVolumeを削除すると同時に下層にあるリソースも解放します。
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{{% /capture %}}
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{{% capture whatsnext %}}
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* [Deploymentオブジェクト](/docs/concepts/workloads/controllers/deployment/)についてもっと学ぶ
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* [アプリケーションのデプロイ](/docs/user-guide/deploying-applications/)についてもっと学ぶ
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* [kubectl runのドキュメント](/docs/reference/generated/kubectl/kubectl-commands/#run)
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* [Volumes](/docs/concepts/storage/volumes/)と[Persistent Volumes](/docs/concepts/storage/persistent-volumes/)
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{{% /capture %}}
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