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Cette page explique comment créer et gérer le stockage persistant pour les charges de travail de conteneurs sur votre appliance Google Distributed Cloud (GDC) isolée. Le stockage persistant fournit à votre application des identités cohérentes et des noms d'hôtes stables, quel que soit l'endroit où ses charges de travail sont planifiées.
Cette page s'adresse aux développeurs du groupe des opérateurs d'applications, qui sont chargés de créer des charges de travail d'application pour leur organisation.
Avant de commencer
Pour exécuter des commandes sur le cluster Kubernetes Bare Metal préconfiguré, assurez-vous de disposer des ressources suivantes :
Recherchez le nom du cluster Kubernetes ou demandez-le à votre administrateur de plate-forme.
Utilisez le chemin d'accès kubeconfig du cluster Kubernetes pour remplacer CLUSTER_KUBECONFIG dans ces instructions.
Pour obtenir les autorisations requises pour créer un volume persistant, demandez à votre administrateur IAM de l'organisation de vous accorder le rôle d'administrateur de l'espace de noms (namespace-admin) dans l'espace de noms de votre projet.
Créer un volume persistant
Les instructions suivantes montrent comment créer un volume à l'aide de l'outil standard-rwoStorageClass de GDC. Pour en savoir plus sur les ressources StorageClass disponibles dans GDC, consultez Stockage persistant pour les conteneurs.
Créez un PersistentVolumeClaim et configurez-le avec un mode d'accès ReadWriteOnce et une classe de stockage standard-rwo :
Pour augmenter la capacité d'un objet PersistentVolumeClaim, définissez le champ spec.resources.storage sur la nouvelle capacité. La taille maximale de volume acceptée est de 14,5 Tio.
Mettez à jour le volume pour qu'il soit plus grand dans le fichier manifeste de l'objet PersistentVolumeClaim :
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/09/04 (UTC).
[[["Facile à comprendre","easyToUnderstand","thumb-up"],["J'ai pu résoudre mon problème","solvedMyProblem","thumb-up"],["Autre","otherUp","thumb-up"]],[["Difficile à comprendre","hardToUnderstand","thumb-down"],["Informations ou exemple de code incorrects","incorrectInformationOrSampleCode","thumb-down"],["Il n'y a pas l'information/les exemples dont j'ai besoin","missingTheInformationSamplesINeed","thumb-down"],["Problème de traduction","translationIssue","thumb-down"],["Autre","otherDown","thumb-down"]],["Dernière mise à jour le 2025/09/04 (UTC)."],[[["\u003cp\u003eGoogle Distributed Cloud (GDC) air-gapped appliance utilizes Kubernetes to provide persistent block and file storage for VM and container workloads through \u003ccode\u003ePersistentVolumeClaim\u003c/code\u003e objects.\u003c/p\u003e\n"],["\u003cp\u003ePersistent storage in GDC is dynamically provisioned on-demand using pre-installed \u003ccode\u003eStorageClass\u003c/code\u003e objects, such as \u003ccode\u003estandard-rwo\u003c/code\u003e for \u003ccode\u003eReadWriteOnce\u003c/code\u003e block storage with a 3 IOPS per GiB limit, and \u003ccode\u003esystem-performance-rwo\u003c/code\u003e which has a 30 IOPS per GiB limit.\u003c/p\u003e\n"],["\u003cp\u003eTo create a persistent volume, a \u003ccode\u003ePersistentVolumeClaim\u003c/code\u003e must be created with a specified access mode and storage class, and the corresponding \u003ccode\u003ePersistentVolume\u003c/code\u003e will be dynamically provisioned in the Kubernetes cluster.\u003c/p\u003e\n"],["\u003cp\u003eOnce a \u003ccode\u003ePersistentVolumeClaim\u003c/code\u003e is created, container workloads can be configured to use it by referencing the \u003ccode\u003eclaimName\u003c/code\u003e in the \u003ccode\u003ePod\u003c/code\u003e object's \u003ccode\u003evolumes\u003c/code\u003e section.\u003c/p\u003e\n"],["\u003cp\u003eThe capacity of a \u003ccode\u003ePersistentVolumeClaim\u003c/code\u003e can be expanded by updating the \u003ccode\u003espec.resources.storage\u003c/code\u003e field in the \u003ccode\u003ePersistentVolumeClaim\u003c/code\u003e object, with a maximum supported volume size of 14.5 Ti.\u003c/p\u003e\n"]]],[],null,["# Access persistent storage\n\nThis page explains how to create and manage persistent storage for container\nworkloads in your Google Distributed Cloud (GDC) air-gapped appliance device. Persistent\nstorage provides your application with consistent identities and stable\nhostnames, regardless of where its workloads are scheduled.\n\nThis page is for developers within the application operator group, who are\nresponsible for creating application workloads for their organization.\n\nBefore you begin\n----------------\n\nTo run commands against the pre-configured bare metal Kubernetes cluster, make sure you have the\nfollowing resources:\n\n1. Locate the Kubernetes cluster name, or ask your Platform\n Administrator what the cluster name is.\n\n2. [Sign in and generate](/distributed-cloud/hosted/docs/latest/appliance/application/ao-user/iam/sign-in#kubernetes-cluster-kubeconfig) the\n kubeconfig file for the Kubernetes cluster if you don't have one.\n\n3. Use the kubeconfig path of the Kubernetes cluster to replace\n \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e in these instructions.\n\nTo get the required permissions to create a persistent volume, ask your\nOrganization IAM Admin to grant you the Namespace Admin role (`namespace-admin`)\nin your project namespace.\n\nCreate a persistent volume\n--------------------------\n\nThe following instructions show how to create a volume using the\nGDC `standard-rwo` `StorageClass`. For more information\non the available `StorageClass` resources in GDC, see\n[Persistent storage for containers](/distributed-cloud/hosted/docs/latest/appliance/application/ao-user/containers/containers-intro#persistent-storage).\n\n1. Create a `PersistentVolumeClaim` and configure it with a\n `ReadWriteOnce` access mode and a `standard-rwo` storage class:\n\n kubectl --kubeconfig \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e \\\n --namespace \u003cvar translate=\"no\"\u003eNAMESPACE\u003c/var\u003e apply -f - \u003c\u003cEOF\n apiVersion: v1\n kind: PersistentVolumeClaim\n metadata:\n name: \u003cvar translate=\"no\"\u003ePVC_NAME\u003c/var\u003e\n spec:\n accessModes:\n - ReadWriteOnce\n resources:\n requests:\n storage: 10Gi\n storageClassName: standard-rwo\n EOF\n\n Replace the following:\n - \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e: the kubeconfig\n file for the Kubernetes cluster.\n\n - \u003cvar translate=\"no\"\u003eNAMESPACE\u003c/var\u003e: the project namespace in which to\n create the PVC.\n\n - \u003cvar translate=\"no\"\u003ePVC_NAME\u003c/var\u003e: the name of the `PersistentVolumeClaim`\n object.\n\n2. The `PersistentVolume` (PV) objects are dynamically provisioned. Check the\n status of the new PVs in your Kubernetes cluster:\n\n kubectl get pv --kubeconfig \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e\n\n The output is similar to the following: \n\n NAME CAPACITY ACCESS MODES STATUS CLAIM STORAGECLASS AGE\n pvc-uuidd 10Gi RWO Bound pvc-name standard-rwo 60s\n\n3. Configure your container workloads to use the PVC. The\n following is an example `nginx` pod that uses a `standard-rwo` PVC:\n\n kubectl --kubeconfig \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e \\\n --namespace \u003cvar translate=\"no\"\u003eNAMESPACE\u003c/var\u003e apply -f - \u003c\u003cEOF\n apiVersion: apps/v1\n kind: Pod\n metadata:\n name: web-server-deployment\n labels:\n app: nginx\n spec:\n containers:\n - name: nginx\n image: nginx\n volumeMounts:\n - mountPath: /usr/share/nginx/html\n name: data\n volumes:\n - name: data\n persistentVolumeClaim:\n claimName: \u003cvar translate=\"no\"\u003ePVC_NAME\u003c/var\u003e\n EOF\n\n Replace \u003cvar translate=\"no\"\u003ePVC_NAME\u003c/var\u003e with the PVC you created.\n\nExpand volume capacity\n----------------------\n\nTo increase the capacity of a `PersistentVolumeClaim` object, update the\n`spec.resources.storage` field to the new capacity. The maximum supported\nvolume size is 14.5 Ti.\n\n1. Update the volume to a larger size in the manifest file of the\n `PersistentVolumeClaim` object:\n\n kubectl --kubeconfig \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e \\\n --namespace \u003cvar translate=\"no\"\u003eNAMESPACE\u003c/var\u003e apply -f - \u003c\u003cEOF\n apiVersion: v1\n kind: PersistentVolumeClaim\n metadata:\n name: \u003cvar translate=\"no\"\u003ePVC_NAME\u003c/var\u003e\n spec:\n accessModes:\n - ReadWriteOnce\n resources:\n requests:\n storage: \u003cvar translate=\"no\"\u003eVOLUME_STORAGE_SIZE\u003c/var\u003e\n EOF\n\n Replace the following:\n - \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e: the kubeconfig\n file for the Kubernetes cluster.\n\n - \u003cvar translate=\"no\"\u003eNAMESPACE\u003c/var\u003e: the project namespace in which the PVC\n resource exists.\n\n - \u003cvar translate=\"no\"\u003ePVC_NAME\u003c/var\u003e: the name of the PVC for which you are\n increasing the storage size.\n\n - \u003cvar translate=\"no\"\u003eVOLUME_SNAPSHOT_SIZE\u003c/var\u003e: the storage size amount to\n increase, such as `50Gi`.\n\n2. Check the status of the updated PVs in your cluster:\n\n kubectl get pv --kubeconfig \u003cvar translate=\"no\"\u003eCLUSTER_KUBECONFIG\u003c/var\u003e\n\nWhat's next\n-----------\n\n- [Container workloads overview](/distributed-cloud/hosted/docs/latest/appliance/application/ao-user/containers/containers-intro)\n- [Create stateful workloads](/distributed-cloud/hosted/docs/latest/appliance/application/ao-user/containers/create-stateful-workloads)\n- [Create volume snapshots](/distributed-cloud/hosted/docs/latest/appliance/application/ao-user/containers/create-volume-snapshots)"]]