Struct k8s_openapi::api::storage::v1::CSIStorageCapacity

pub struct CSIStorageCapacity {
    pub capacity: Option<Quantity>,
    pub maximum_volume_size: Option<Quantity>,
    pub metadata: ObjectMeta,
    pub node_topology: Option<LabelSelector>,
    pub storage_class_name: String,
}

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.

Fields

capacity: Option<Quantity>

capacity is the value reported by the CSI driver in its GetCapacityResponse for a GetCapacityRequest with topology and parameters that match the previous fields.

The semantic is currently (CSI spec 1.2) defined as: The available capacity, in bytes, of the storage that can be used to provision volumes. If not set, that information is currently unavailable.

maximum_volume_size: Option<Quantity>

maximumVolumeSize is the value reported by the CSI driver in its GetCapacityResponse for a GetCapacityRequest with topology and parameters that match the previous fields.

This is defined since CSI spec 1.4.0 as the largest size that may be used in a CreateVolumeRequest.capacity_range.required_bytes field to create a volume with the same parameters as those in GetCapacityRequest. The corresponding value in the Kubernetes API is ResourceRequirements.Requests in a volume claim.

metadata: ObjectMeta

Standard object’s metadata. The name has no particular meaning. It must be a DNS subdomain (dots allowed, 253 characters). To ensure that there are no conflicts with other CSI drivers on the cluster, the recommendation is to use csisc-<uuid>, a generated name, or a reverse-domain name which ends with the unique CSI driver name.

Objects are namespaced.

More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

node_topology: Option<LabelSelector>

nodeTopology defines which nodes have access to the storage for which capacity was reported. If not set, the storage is not accessible from any node in the cluster. If empty, the storage is accessible from all nodes. This field is immutable.

storage_class_name: 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.

Trait Implementations

impl Clone for CSIStorageCapacity

fn clone(&self) -> CSIStorageCapacity

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CSIStorageCapacity

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl DeepMerge for CSIStorageCapacity

fn merge_from(&mut self, other: Self)

Merge other into self.

impl Default for CSIStorageCapacity

fn default() -> CSIStorageCapacity

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CSIStorageCapacity

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl ListableResource for CSIStorageCapacity

const LIST_KIND: &'static str = "CSIStorageCapacityList"

The kind of the list type of the resource.

impl Metadata for CSIStorageCapacity

type Ty = ObjectMeta

The type of the metadata object.

fn metadata(&self) -> &<Self as Metadata>::Ty

Gets a reference to the metadata of this resource value.

fn metadata_mut(&mut self) -> &mut <Self as Metadata>::Ty

Gets a mutable reference to the metadata of this resource value.

impl PartialEq for CSIStorageCapacity

fn eq(&self, other: &CSIStorageCapacity) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Resource for CSIStorageCapacity

const API_VERSION: &'static str = "storage.k8s.io/v1"

The API version of the resource. This is a composite of Resource::GROUP and Resource::VERSION (eg "apiextensions.k8s.io/v1beta1") or just the version for resources without a group (eg "v1").

const GROUP: &'static str = "storage.k8s.io"

The group of the resource, or the empty string if the resource doesn’t have a group.

const KIND: &'static str = "CSIStorageCapacity"

The kind of the resource.

const VERSION: &'static str = "v1"

The version of the resource.

const URL_PATH_SEGMENT: &'static str = "csistoragecapacities"

The URL path segment used to construct URLs related to this resource.

type Scope = NamespaceResourceScope

Indicates whether the resource is namespace-scoped or cluster-scoped or a subresource.

impl Serialize for CSIStorageCapacity

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for CSIStorageCapacity