Skip to content

Latest commit

 

History

History
24 lines (14 loc) · 8.16 KB

V1CSIStorageCapacity.md

File metadata and controls

24 lines (14 loc) · 8.16 KB

V1CSIStorageCapacity

CSIStorageCapacity stores the result of one CSI GetCapacity call. For a given StorageClass, this describes the available capacity in a particular topology segment. This can be used when considering where to instantiate new PersistentVolumes. For example this can express things like: - StorageClass "standard" has "1234 GiB" available in "topology.kubernetes.io/zone=us-east1" - StorageClass "localssd" has "10 GiB" available in "kubernetes.io/hostname=knode-abc123" The following three cases all imply that no capacity is available for a certain combination: - no object exists with suitable topology and storage class name - such an object exists, but the capacity is unset - such an object exists, but the capacity is zero The producer of these objects can decide which approach is more suitable. They are consumed by the kube-scheduler when a CSI driver opts into capacity-aware scheduling with CSIDriverSpec.StorageCapacity. The scheduler compares the MaximumVolumeSize against the requested size of pending volumes to filter out unsuitable nodes. If MaximumVolumeSize is unset, it falls back to a comparison against the less precise Capacity. If that is also unset, the scheduler assumes that capacity is insufficient and tries some other node.

Properties

Name Type Description Notes
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 [optional]
capacity Quantity Quantity is a fixed-point representation of a number. It provides convenient marshaling/unmarshaling in JSON and YAML, in addition to String() and AsInt64() accessors. The serialization format is: ``` <quantity> ::= <signedNumber><suffix> (Note that <suffix> may be empty, from the &quot;&quot; case in <decimalSI>.) <digit> ::= 0 1
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 [optional]
maximumVolumeSize Quantity Quantity is a fixed-point representation of a number. It provides convenient marshaling/unmarshaling in JSON and YAML, in addition to String() and AsInt64() accessors. The serialization format is: ``` <quantity> ::= <signedNumber><suffix> (Note that <suffix> may be empty, from the &quot;&quot; case in <decimalSI>.) <digit> ::= 0 1
metadata V1ObjectMeta [optional]
nodeTopology V1LabelSelector [optional]
storageClassName String storageClassName represents the name of the StorageClass that the reported capacity applies to. It must meet the same requirements as the name of a StorageClass object (non-empty, DNS subdomain). If that object no longer exists, the CSIStorageCapacity object is obsolete and should be removed by its creator. This field is immutable.

Implemented Interfaces

  • io.kubernetes.client.common.KubernetesObject