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types.go
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types.go
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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package storage
import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
api "k8s.io/kubernetes/pkg/apis/core"
)
// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// StorageClass describes a named "class" of storage offered in a cluster.
// Different classes might map to quality-of-service levels, or to backup policies,
// or to arbitrary policies determined by the cluster administrators. Kubernetes
// itself is unopinionated about what classes represent. This concept is sometimes
// called "profiles" in other storage systems.
// The name of a StorageClass object is significant, and is how users can request a particular class.
type StorageClass struct {
metav1.TypeMeta
// +optional
metav1.ObjectMeta
// provisioner is the driver expected to handle this StorageClass.
// This is an optionally-prefixed name, like a label key.
// For example: "kubernetes.io/gce-pd" or "kubernetes.io/aws-ebs".
// This value may not be empty.
Provisioner string
// parameters holds parameters for the provisioner.
// These values are opaque to the system and are passed directly
// to the provisioner. The only validation done on keys is that they are
// not empty. The maximum number of parameters is
// 512, with a cumulative max size of 256K
// +optional
Parameters map[string]string
// reclaimPolicy is the reclaim policy that dynamically provisioned
// PersistentVolumes of this storage class are created with
// +optional
ReclaimPolicy *api.PersistentVolumeReclaimPolicy
// mountOptions are the mount options that dynamically provisioned
// PersistentVolumes of this storage class are created with
// +optional
MountOptions []string
// AllowVolumeExpansion shows whether the storage class allow volume expand
// If the field is nil or not set, it would amount to expansion disabled
// for all PVs created from this storageclass.
// +optional
AllowVolumeExpansion *bool
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// StorageClassList is a collection of storage classes.
type StorageClassList struct {
metav1.TypeMeta
// Standard list metadata
// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
// +optional
metav1.ListMeta
// Items is the list of StorageClasses
Items []StorageClass
}
// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// Captures the intent to attach or detach the specified volume to/from
// the specified node.
//
// VolumeAttachment objects are non-namespaced.
type VolumeAttachment struct {
metav1.TypeMeta
// Standard object metadata.
// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
// +optional
metav1.ObjectMeta
// Specification of the desired attach/detach volume behavior.
// Populated by the Kubernetes system.
Spec VolumeAttachmentSpec
// Status of the VolumeAttachment request.
// Populated by the entity completing the attach or detach
// operation, i.e. the external-attacher.
// +optional
Status VolumeAttachmentStatus
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// VolumeAttachmentList is a collection of VolumeAttachment objects.
type VolumeAttachmentList struct {
metav1.TypeMeta
// Standard list metadata
// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
// +optional
metav1.ListMeta
// Items is the list of VolumeAttachments
Items []VolumeAttachment
}
// The specification of a VolumeAttachment request.
type VolumeAttachmentSpec struct {
// Attacher indicates the name of the volume driver that MUST handle this
// request. This is the name returned by GetPluginName().
Attacher string
// Source represents the volume that should be attached.
Source VolumeAttachmentSource
// The node that the volume should be attached to.
NodeName string
}
// VolumeAttachmentSource represents a volume that should be attached.
// Right now only PersistenVolumes can be attached via external attacher,
// in future we may allow also inline volumes in pods.
// Exactly one member can be set.
type VolumeAttachmentSource struct {
// Name of the persistent volume to attach.
// +optional
PersistentVolumeName *string
// Placeholder for *VolumeSource to accommodate inline volumes in pods.
}
// The status of a VolumeAttachment request.
type VolumeAttachmentStatus struct {
// Indicates the volume is successfully attached.
// This field must only be set by the entity completing the attach
// operation, i.e. the external-attacher.
Attached bool
// Upon successful attach, this field is populated with any
// information returned by the attach operation that must be passed
// into subsequent WaitForAttach or Mount calls.
// This field must only be set by the entity completing the attach
// operation, i.e. the external-attacher.
// +optional
AttachmentMetadata map[string]string
// The last error encountered during attach operation, if any.
// This field must only be set by the entity completing the attach
// operation, i.e. the external-attacher.
// +optional
AttachError *VolumeError
// The last error encountered during detach operation, if any.
// This field must only be set by the entity completing the detach
// operation, i.e. the external-attacher.
// +optional
DetachError *VolumeError
}
// Captures an error encountered during a volume operation.
type VolumeError struct {
// Time the error was encountered.
// +optional
Time metav1.Time
// String detailing the error encountered during Attach or Detach operation.
// This string maybe logged, so it should not contain sensitive
// information.
// +optional
Message string
}