From e4c82b3d7ba8ec21a1f04656504c999e09eca809 Mon Sep 17 00:00:00 2001
From: xing-yang <xingyang105@gmail.com>
Date: Sat, 4 Aug 2018 13:44:58 -0700
Subject: [PATCH] Add TypedLocalObjectReference and DataSource

This PR adds TypedLocalObjectReference in the core API and adds
DataSource in PersistentVolumeClaimSpec.
---
 pkg/apis/core/types.go                  | 13 +++++++++++++
 staging/src/k8s.io/api/core/v1/types.go | 16 ++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/pkg/apis/core/types.go b/pkg/apis/core/types.go
index 0dddca02f3f..e42a14beb21 100644
--- a/pkg/apis/core/types.go
+++ b/pkg/apis/core/types.go
@@ -413,6 +413,9 @@ type PersistentVolumeClaimSpec struct {
 	// This is an alpha feature and may change in the future.
 	// +optional
 	VolumeMode *PersistentVolumeMode
+	// If specified, volume will be prepopulated with data from the DataSource.
+	// +optional
+	DataSource *TypedLocalObjectReference
 }
 
 type PersistentVolumeClaimConditionType string
@@ -3960,6 +3963,16 @@ type LocalObjectReference struct {
 	Name string
 }
 
+// TypedLocalObjectReference contains enough information to let you locate the typed referenced object inside the same namespace.
+type TypedLocalObjectReference struct {
+	// Name of the referent.
+	// +optional
+	Name string
+	// Kind of the referent.
+	// +optional
+	Kind string
+}
+
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 type SerializedReference struct {
diff --git a/staging/src/k8s.io/api/core/v1/types.go b/staging/src/k8s.io/api/core/v1/types.go
index 543d980e4f6..481796135db 100644
--- a/staging/src/k8s.io/api/core/v1/types.go
+++ b/staging/src/k8s.io/api/core/v1/types.go
@@ -458,6 +458,9 @@ type PersistentVolumeClaimSpec struct {
 	// This is an alpha feature and may change in the future.
 	// +optional
 	VolumeMode *PersistentVolumeMode `json:"volumeMode,omitempty" protobuf:"bytes,6,opt,name=volumeMode,casttype=PersistentVolumeMode"`
+	// If specified, volume will be prepopulated with data from the DataSource.
+	// +optional
+	DataSource *TypedLocalObjectReference `json:"dataSource" protobuf:"bytes,7,opt,name=dataSource"`
 }
 
 // PersistentVolumeClaimConditionType is a valid value of PersistentVolumeClaimCondition.Type
@@ -4478,6 +4481,19 @@ type LocalObjectReference struct {
 	Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
 }
 
+// TypedLocalObjectReference contains enough information to let you locate the
+// typed referenced object inside the same namespace.
+type TypedLocalObjectReference struct {
+	// Name of the referent.
+	// More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+	// +optional
+	Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
+	// Kind of the referent.
+	// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds
+	// +optional
+	Kind string `json:"kind,omitempty" protobuf:"bytes,2,opt,name=kind"`
+}
+
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // SerializedReference is a reference to serialized object.