PersistentVolumeClaim

PersistentVolumeClaim is a user's request for and claim to a persistent volume.

apiVersion: v1

import "k8s.io/api/core/v1"

PersistentVolumeClaim

PersistentVolumeClaim is a user's request for and claim to a persistent volume

apiVersion: v1
kind: PersistentVolumeClaim
metadata (
Standard object's metadata. More info:

spec (
Spec defines the desired characteristics of a volume requested by a pod author. More info:

status (
Status represents the current information/status of a persistent volume claim. Read-only. More info:

PersistentVolumeClaimSpec

PersistentVolumeClaimSpec describes the common attributes of storage devices and allows a Source for provider-specific attributes

accessModes ([]string)

AccessModes contains the desired access modes the volume should have. More info:

selector (
A label query over volumes to consider for binding.

resources (ResourceRequirements)

Resources represents the minimum resources the volume should have. If RecoverVolumeExpansionFailure feature is enabled users are allowed to specify resource requirements that are lower than previous value but must still be higher than capacity recorded in the status field of the claim. More info:
ResourceRequirements describes the compute resource requirements.

resources.limits (map[string]
Limits describes the maximum amount of compute resources allowed. More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/

resources.requests (map[string]
Requests describes the minimum amount of compute resources required. If Requests is omitted for a container, it defaults to Limits if that is explicitly specified, otherwise to an implementation-defined value. More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
volumeName (string)

VolumeName is the binding reference to the PersistentVolume backing this claim.
storageClassName (string)

Name of the StorageClass required by the claim. More info:

volumeMode (string)

volumeMode defines what type of volume is required by the claim. Value of Filesystem is implied when not included in claim spec.

Alpha level

dataSource (
This field can be used to specify either: * An existing VolumeSnapshot object (snapshot.storage.k8s.io/VolumeSnapshot) * An existing PVC (PersistentVolumeClaim) If the provisioner or an external controller can support the specified data source, it will create a new volume based on the contents of the specified data source. If the AnyVolumeDataSource feature gate is enabled, this field will always have the same contents as the DataSourceRef field.

dataSourceRef (
Specifies the object from which to populate the volume with data, if a non-empty volume is desired. This may be any local object from a non-empty API group (non core object) or a PersistentVolumeClaim object. When this field is specified, volume binding will only succeed if the type of the specified object matches some installed volume populator or dynamic provisioner. This field will replace the functionality of the DataSource field and as such if both fields are non-empty, they must have the same value. For backwards compatibility, both fields (DataSource and DataSourceRef) will be set to the same value automatically if one of them is empty and the other is non-empty. There are two important differences between DataSource and DataSourceRef: * While DataSource only allows two specific types of objects, DataSourceRef allows any non-core object, as well as PersistentVolumeClaim objects.
- While DataSource ignores disallowed values (dropping them), DataSourceRef preserves all values, and generates an error if a disallowed value is specified. (Alpha) Using this field requires the AnyVolumeDataSource feature gate to be enabled.

PersistentVolumeClaimStatus

PersistentVolumeClaimStatus is the current status of a persistent volume claim.

accessModes ([]string)

AccessModes contains the actual access modes the volume backing the PVC has. More info:

allocatedResources (map[string]
The storage resource within AllocatedResources tracks the capacity allocated to a PVC. It may be larger than the actual capacity when a volume expansion operation is requested. For storage quota, the larger value from allocatedResources and PVC.spec.resources is used. If allocatedResources is not set, PVC.spec.resources alone is used for quota calculation. If a volume expansion capacity request is lowered, allocatedResources is only lowered if there are no expansion operations in progress and if the actual volume capacity is equal or lower than the requested capacity. This is an alpha field and requires enabling RecoverVolumeExpansionFailure feature.

capacity (map[string]
Represents the actual resources of the underlying volume.

conditions ([]PersistentVolumeClaimCondition)

Patch strategy: merge on key type

Current Condition of persistent volume claim. If underlying persistent volume is being resized then the Condition will be set to 'ResizeStarted'.

PersistentVolumeClaimCondition contails details about state of pvc

conditions.status (string), required

conditions.type (string), required

Possible enum values:

"FileSystemResizePending" - controller resize is finished and a file system resize is pending on node

"Resizing" - a user trigger resize of pvc has been started

conditions.lastProbeTime (Time)

Last time we probed the condition.

Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

conditions.lastTransitionTime (Time)

Last time the condition transitioned from one status to another.

Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

conditions.message (string)

Human-readable message indicating details about last transition.

conditions.reason (string)

Unique, this should be a short, machine understandable string that gives the reason for condition's last transition. If it reports "ResizeStarted" that means the underlying persistent volume is being resized.
phase (string)

Phase represents the current phase of PersistentVolumeClaim.

Possible enum values:
- "Bound" used for PersistentVolumeClaims that are bound
- "Lost" used for PersistentVolumeClaims that lost their underlying PersistentVolume. The claim was bound to a PersistentVolume and this volume does not exist any longer and all data on it was lost.
- "Pending" used for PersistentVolumeClaims that are not yet bound
resizeStatus (string)

ResizeStatus stores status of resize operation. ResizeStatus is not set by default but when expansion is complete resizeStatus is set to empty string by resize controller or kubelet. This is an alpha field and requires enabling RecoverVolumeExpansionFailure feature.