华为云计算 云知识 查询PersistentVolumeClaimreadCoreV1NamespacedPersistentVolumeClaim
查询PersistentVolumeClaimreadCoreV1NamespacedPersistentVolumeClaim

 

功能介绍

查询PersistentVolumeClaim。

调用方法

请参见如何调用API

URI

GET /api/v1/namespaces/{namespace}/persistentvolumeclaims/{name}

表1 路径参数

参数

是否必选

参数类型

描述

name

String

name of the PersistentVolumeClaim

namespace

String

object name and auth scope, such as for teams and projects

表2 Query参数

参数

是否必选

参数类型

描述

exact

Boolean

Should the export be exact. Exact export maintains cluster-specific fields like 'Namespace'. Deprecated. Planned for removal in 1.18.

export

Boolean

Should this value be exported. Export strips fields that a user can not specify. Deprecated. Planned for removal in 1.18.

pretty

String

If 'true', then the output is pretty printed.

请求参数

表3 请求Header参数

参数

是否必选

参数类型

描述

X-Auth-Token

String

用户Token。

通过调用 IAM 服务获取用户Token接口获取(响应消息头中X-Subject-Token的值)。

响应参数

状态码: 200

表4 响应Body参数

参数

参数类型

描述

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

io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta object

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

spec

io.k8s.api.core.v1.PersistentVolumeClaimSpec object

Spec defines the desired characteristics of a volume requested by a pod author. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims

status

io.k8s.api.core.v1.PersistentVolumeClaimStatus object

Status represents the current information/status of a persistent volume claim. Read-only. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims

表5 io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta

参数

参数类型

描述

annotations

Map<String,String>

Annotations is an unstructured key value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects. More info: http://kubernetes.io/docs/user-guide/annotations

clusterName

String

The name of the cluster which the object belongs to. This is used to distinguish resources with same name and namespace in different clusters. This field is not set anywhere right now and apiserver is going to ignore it if set in create or update request.

creationTimestamp

String

CreationTimestamp is a timestamp representing the server time when this object was created. It is not guaranteed to be set in happens-before order across separate operations. Clients may not set this value. It is represented in RFC3339 form and is in UTC.

Populated by the system. Read-only. Null for lists. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

deletionGracePeriodSeconds

Long

Number of seconds allowed for this object to gracefully terminate before it will be removed from the system. Only set when deletionTimestamp is also set. May only be shortened. Read-only.

deletionTimestamp

String

DeletionTimestamp is RFC 3339 date and time at which this resource will be deleted. This field is set by the server when a graceful deletion is requested by the user, and is not directly settable by a client. The resource is expected to be deleted (no longer visible from resource lists, and not reachable by name) after the time in this field, once the finalizers list is empty. As long as the finalizers list contains items, deletion is blocked. Once the deletionTimestamp is set, this value may not be unset or be set further into the future, although it may be shortened or the resource may be deleted prior to this time. For example, a user may request that a pod is deleted in 30 seconds. The Kubelet will react by sending a graceful termination signal to the containers in the pod. After that 30 seconds, the Kubelet will send a hard termination signal (SIGKILL) to the container and after cleanup, remove the pod from the API. In the presence of network partitions, this object may still exist after this timestamp, until an administrator or automated process can determine the resource is fully terminated. If not set, graceful deletion of the object has not been requested.

Populated by the system when a graceful deletion is requested. Read-only. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

finalizers

Array of strings

Must be empty before the object is deleted from the registry. Each entry is an identifier for the responsible component that will remove the entry from the list. If the deletionTimestamp of the object is non-nil, entries in this list can only be removed. Finalizers may be processed and removed in any order. Order is NOT enforced because it introduces significant risk of stuck finalizers. finalizers is a shared field, any actor with permission can reorder it. If the finalizer list is processed in order, then this can lead to a situation in which the component responsible for the first finalizer in the list is waiting for a signal (field value, external system, or other) produced by a component responsible for a finalizer later in the list, resulting in a deadlock. Without enforced ordering finalizers are free to order amongst themselves and are not vulnerable to ordering changes in the list.

generateName

String

GenerateName is an optional prefix, used by the server, to generate a unique name ONLY IF the Name field has not been provided. If this field is used, the name returned to the client will be different than the name passed. This value will also be combined with a unique suffix. The provided value has the same validation rules as the Name field, and may be truncated by the length of the suffix required to make the value unique on the server.

If this field is specified and the generated name exists, the server will NOT return a 409 - instead, it will either return 201 Created or 500 with Reason ServerTimeout indicating a unique name could not be found in the time allotted, and the client should retry (optionally after the time indicated in the Retry-After header).

Applied only if Name is not specified. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#idempotency

generation

Long

A sequence number representing a specific generation of the desired state. Populated by the system. Read-only.

labels

Map<String,String>

Map of string keys and values that can be used to organize and categorize (scope and select) objects. May match selectors of replication controllers and services. More info: http://kubernetes.io/docs/user-guide/labels

managedFields

Array of io.k8s.apimachinery.pkg.apis.meta.v1.ManagedFieldsEntry objects

ManagedFields maps workflow-id and version to the set of fields that are managed by that workflow. This is mostly for internal housekeeping, and users typically shouldn't need to set or understand this field. A workflow can be the user's name, a controller's name, or the name of a specific apply path like "ci-cd". The set of fields is always in the version that the workflow used when modifying the object.

name

String

Name must be unique within a namespace. Is required when creating resources, although some resources may allow a client to request the generation of an appropriate name automatically. Name is primarily intended for creation idempotence and configuration definition. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/identifiers#names

namespace

String

Namespace defines the space within which each name must be unique. An empty namespace is equivalent to the "default" namespace, but "default" is the canonical representation. Not all objects are required to be scoped to a namespace - the value of this field for those objects will be empty.

Must be a DNS_LABEL. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/namespaces

ownerReferences

Array of io.k8s.apimachinery.pkg.apis.meta.v1.OwnerReference objects

List of objects depended by this object. If ALL objects in the list have been deleted, this object will be garbage collected. If this object is managed by a controller, then an entry in this list will point to this controller, with the controller field set to true. There cannot be more than one managing controller.

resourceVersion

String

An opaque value that represents the internal version of this object that can be used by clients to determine when objects have changed. May be used for optimistic concurrency, change detection, and the watch operation on a resource or set of resources. Clients must treat these values as opaque and passed unmodified back to the server. They may only be valid for a particular resource or set of resources.

Populated by the system. Read-only. Value must be treated as opaque by clients and . More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency

selfLink

String

SelfLink is a URL representing this object. Populated by the system. Read-only.

DEPRECATED Kubernetes will stop propagating this field in 1.20 release and the field is planned to be removed in 1.21 release.

uid

String

UID is the unique in time and space value for this object. It is typically generated by the server on successful creation of a resource and is not allowed to change on PUT operations.

Populated by the system. Read-only. More info: http://kubernetes.io/docs/user-guide/identifiers#uids

表6 io.k8s.apimachinery.pkg.apis.meta.v1.ManagedFieldsEntry

参数

参数类型

描述

apiVersion

String

APIVersion defines the version of this resource that this field set applies to. The format is "group/version" just like the top-level APIVersion field. It is necessary to track the version of a field set because it cannot be automatically converted.

fieldsType

String

FieldsType is the discriminator for the different fields format and version. There is currently only one possible value: "FieldsV1"

fieldsV1

Object

FieldsV1 holds the first JSON version format as described in the "FieldsV1" type.

manager

String

Manager is an identifier of the workflow managing these fields.

operation

String

Operation is the type of operation which lead to this ManagedFieldsEntry being created. The only valid values for this field are 'Apply' and 'Update'.

time

String

Time is timestamp of when these fields were set. It should always be empty if Operation is 'Apply'

表7 io.k8s.apimachinery.pkg.apis.meta.v1.OwnerReference

参数

参数类型

描述

apiVersion

String

API version of the referent.

blockOwnerDeletion

Boolean

If true, AND if the owner has the "foregroundDeletion" finalizer, then the owner cannot be deleted from the key-value store until this reference is removed. Defaults to false. To set this field, a user needs "delete" permission of the owner, otherwise 422 (Unprocessable Entity) will be returned.

controller

Boolean

If true, this reference points to the managing controller.

kind

String

Kind of the referent. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

name

String

Name of the referent. More info: http://kubernetes.io/docs/user-guide/identifiers#names

uid

String

UID of the referent. More info: http://kubernetes.io/docs/user-guide/identifiers#uids

表8 io.k8s.api.core.v1.PersistentVolumeClaimSpec

参数

参数类型

描述

accessModes

Array of strings

AccessModes contains the desired access modes the volume should have. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#access-modes-1

dataSource

io.k8s.api.core.v1.TypedLocalObjectReference object

This field can be used to specify either: * An existing VolumeSnapshot object (snapshot.storage.k8s.io/VolumeSnapshot - Beta) * An existing PVC (PersistentVolumeClaim) * An existing custom resource/object that implements data population (Alpha) In order to use VolumeSnapshot object types, the appropriate feature gate must be enabled (VolumeSnapshotDataSource or AnyVolumeDataSource) 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 specified data source is not supported, the volume will not be created and the failure will be reported as an event. In the future, we plan to support more data source types and the behavior of the provisioner may change.

resources

io.k8s.api.core.v1.ResourceRequirements object

Resources represents the minimum resources the volume should have. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#resources

selector

io.k8s.apimachinery.pkg.apis.meta.v1.LabelSelector object

A label query over volumes to consider for binding.

storageClassName

String

Name of the StorageClass required by the claim. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#class-1

volumeMode

String

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

volumeName

String

VolumeName is the binding reference to the PersistentVolume backing this claim.

表9 io.k8s.api.core.v1.TypedLocalObjectReference

参数

参数类型

描述

apiGroup

String

APIGroup is the group for the resource being referenced. If APIGroup is not specified, the specified Kind must be in the core API group. For any other third-party types, APIGroup is required.

kind

String

Kind is the type of resource being referenced

name

String

Name is the name of resource being referenced

表10 io.k8s.api.core.v1.ResourceRequirements

参数

参数类型

描述

limits

Map<String,String>

Limits describes the maximum amount of compute resources allowed. More info: https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/

requests

Map<String,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-compute-resources-container/

表11 io.k8s.apimachinery.pkg.apis.meta.v1.LabelSelector

参数

参数类型

描述

matchExpressions

Array of io.k8s.apimachinery.pkg.apis.meta.v1.LabelSelectorRequirement objects

matchExpressions is a list of label selector requirements. The requirements are ANDed.

matchLabels

Map<String,String>

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

表12 io.k8s.apimachinery.pkg.apis.meta.v1.LabelSelectorRequirement

参数

参数类型

描述

key

String

key is the label key that the selector applies to.

operator

String

operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values

Array of strings

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

表13 io.k8s.api.core.v1.PersistentVolumeClaimStatus

参数

参数类型

描述

accessModes

Array of strings

AccessModes contains the actual access modes the volume backing the PVC has. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#access-modes-1

capacity

Map<String,String>

Represents the actual resources of the underlying volume.

conditions

Array of io.k8s.api.core.v1.PersistentVolumeClaimCondition objects

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

phase

String

Phase represents the current phase of PersistentVolumeClaim.

表14 io.k8s.api.core.v1.PersistentVolumeClaimCondition

参数

参数类型

描述

lastProbeTime

String

Last time we probed the condition.

lastTransitionTime

String

Last time the condition transitioned from one status to another.

message

String

Human-readable message indicating details about last transition.

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.

status

String

status is the status of the condition.

type

String

type is the type of the condition.

请求示例

响应示例

状态码: 200

OK

{
  "apiVersion" : "v1",
  "kind" : "PersistentVolumeClaim",
  "metadata" : {
    "annotations" : {
      "pv.kubernetes.io/bind-completed" : "yes",
      "pv.kubernetes.io/bound-by-controller" : "yes",
      "volume.beta.kubernetes.io/storage-class" : "sata",
      "volume.beta.kubernetes.io/storage-provisioner" : "flexvolume-huawei.com/fuxivol"
    },
    "creationTimestamp" : "2018-09-07T07:17:38Z",
    "finalizers" : [ "kubernetes.io/pvc-protection" ],
    "name" : "pvc-test",
    "namespace" : "test-namespace",
    "resourceVersion" : "5915795",
    "selfLink" : "/api/v1/namespaces/namespace-test/persistentvolumeclaims/pvc-test",
    "uid" : "19a355cc-b26e-11e8-b205-c88d83be759f"
  },
  "spec" : {
    "accessModes" : [ "ReadWriteMany" ],
    "resources" : {
      "requests" : {
        "storage" : "10Gi"
      }
    },
    "volumeName" : "pvc-19a355cc-b26e-11e8-b205-c88d83be759f"
  },
  "status" : {
    "accessModes" : [ "ReadWriteMany" ],
    "capacity" : {
      "storage" : "10Gi"
    },
    "phase" : "Bound"
  }
}

状态码

状态码

描述

200

OK

400

BadRequest

401

Unauthorized

403

Forbidden

404

NotFound

405

MethodNotAllowed

406

NotAcceptable

409

Conflict

415

UnsupportedMediaType

422

Invalid

429

TooManyRequests

500

InternalError

503

ServiceUnavailable

504

ServerTimeout

 

上一篇:"协同+"模式,业务应用按需添加 下一篇:当今时代的计算特点是什么