StorageClass

StorageClass describes the parameters for a class of storage for which PersistentVolumes can be dynamically provisioned.

StorageClasses are non-namespaced; the name of the storage class according to etcd is in ObjectMeta.Name.

Concept documentation for StorageClass

Storage Classes

apiVersion: storage.k8s.io/v1

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

StorageClass

StorageClass describes the parameters for a class of storage for which PersistentVolumes can be dynamically provisioned.

StorageClasses are non-namespaced; the name of the storage class according to etcd is in ObjectMeta.Name.

Field	Description
`allowVolumeExpansion` boolean	allowVolumeExpansion shows whether the storage class allow volume expand.
`allowedTopologies` TopologySelectorTerm array	allowedTopologies restrict the node topologies where volumes can be dynamically provisioned. Each volume plugin defines its own supported topology specifications. An empty TopologySelectorTerm list means there is no topology restriction. This field is only honored by servers that enable the VolumeScheduling feature.
`apiVersion` string	APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
`kind` string	Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
`metadata` ObjectMeta	Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
`mountOptions` string array	mountOptions controls the mountOptions for dynamically provisioned PersistentVolumes of this storage class. e.g. ["ro", "soft"]. Not validated - mount of the PVs will simply fail if one is invalid.
`parameters` object	parameters holds the parameters for the provisioner that should create volumes of this storage class.
`provisioner` * string	provisioner indicates the type of the provisioner.
`reclaimPolicy` string	reclaimPolicy controls the reclaimPolicy for dynamically provisioned PersistentVolumes of this storage class. Defaults to Delete. Possible enum values: - `"Delete"` means the volume will be deleted from Kubernetes on release from its claim. The volume plugin must support Deletion. - `"Recycle"` means the volume will be recycled back into the pool of unbound persistent volumes on release from its claim. The volume plugin must support Recycling. - `"Retain"` means the volume will be left in its current phase (Released) for manual reclamation by the administrator. The default policy is Retain.
`volumeBindingMode` string	volumeBindingMode indicates how PersistentVolumeClaims should be provisioned and bound. When unset, VolumeBindingImmediate is used. This field is only honored by servers that enable the VolumeScheduling feature. Possible enum values: - `"Immediate"` indicates that PersistentVolumeClaims should be immediately provisioned and bound. This is the default mode. - `"WaitForFirstConsumer"` indicates that PersistentVolumeClaims should not be provisioned and bound until the first Pod is created that references the PeristentVolumeClaim. The volume provisioning and binding will occur during Pod scheduing.

StorageClassList

StorageClassList is a collection of storage classes.

Field	Description
`apiVersion` string	APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
`items` * StorageClass array	items is the list of StorageClasses
`kind` string	Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
`metadata` ListMeta	Standard list metadata More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

TopologySelectorLabelRequirement

A topology selector requirement is a selector that matches given label. This is an alpha feature and may change in the future.

Field	Description
`key` * string	The label key that the selector applies to.
`values` * string array	An array of string values. One value must match the label to be selected. Each entry in Values is ORed.

TopologySelectorTerm

A topology selector term represents the result of label queries. A null or empty topology selector term matches no objects. The requirements of them are ANDed. It provides a subset of functionality as NodeSelectorTerm. This is an alpha feature and may change in the future.

Field	Description
`matchLabelExpressions` TopologySelectorLabelRequirement array	A list of topology selector requirements by labels.

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https://kubernetes.io/docs/reference/kubernetes-api/storage/storage-class-v1/