This document describes persistent volumes Kubernetes. Familiarity volumes, StorageClasses VolumeAttributesClasses suggested. Introduction Managing storage a distinct problem managing compute instances. PersistentVolume subsystem an API users administrators abstracts details how storage provided how is consumed. do this, .
Use pv.beta.kubernetes.io/gid annotation follows: apiVersion : v1 kind : PersistentVolume metadata : : pv1 annotations : pv.beta.kubernetes.io/gid : "1234" a Pod consumes PersistentVolume has GID annotation, annotated GID applied all containers the Pod the way GIDs in Pod's .
Kubernetes the PVC find available PV satisfies PVC's requirements. PVC created a pod request storage a PV. a PVC created, can mounted a volume a pod. pod then the mounted volume store retrieve data. Let's an example a PVC YAML definition:
In Kubernetes, PV a piece storage the cluster has provisioned an administrator dynamically provisioned Storage Classes. PVCs requests storage a user. can request specific size access modes (e.g., read/write or read-only-many).
Binding PVC PV: Kubernetes control plane attempts bind PVC an PV matches PVC's requirements. binding process ensures the PVC satisfied a .
Kubernetes match claim an PV. Binding PVs PVCs real magic when PVC a PV the class bound together, making storage accessible the .
Binding occurs a cluster user adds PVC claims PV. PV enter state automatically dynamic provisioning used, you'll already created PVC. Kubernetes automatically watches new PVCs binds to PVs reference. PV only bound a single PVC a time.
In order use PV, need claim first, a persistent volume claim (PVC). PVC requests PV your desired specification (size, speed, etc.) Kubernetes binds to pod you is mounted a volume. Let's create PVC, Kubernetes 1 GB storage the default storage class:
A persistent volume claim (PVC) a request storage a user a PV. Claims request specific size access modes (e.g: can mounted read/write many times read-only).
Examples include emptyDir volumes. Conversely, persistent storage survives pod terminations, essential data persistence restarts crashes. Persistent Volumes (PVs) Persistent Volume Claims (PVCs) crucial Kubernetes objects enabling persistent storage. Screenshot Suggestion: Diagram illustrating PV PVC relationship
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