From c3a275252f4a54a5fe5369809fd79ff5dbaba3de Mon Sep 17 00:00:00 2001
From: Jan Safranek <jsafrane@redhat.com>
Date: Wed, 22 Aug 2018 12:24:53 +0200
Subject: [PATCH] Introduce new `CSINodeInfo` CRD API Object

---
 .../csi-api/pkg/apis/csi/v1alpha1/doc.go      |  1 +
 .../csi-api/pkg/apis/csi/v1alpha1/register.go |  6 ++-
 .../csi-api/pkg/apis/csi/v1alpha1/types.go    | 41 +++++++++++++++++++
 3 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/doc.go b/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/doc.go
index b60c9314875..59bbb3f3f0a 100644
--- a/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/doc.go
+++ b/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/doc.go
@@ -14,6 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+// Package v1alpha1 provides alpha API for CSI API objects.
 // +k8s:deepcopy-gen=package,register
 // +groupName=csi.storage.k8s.io
 // +k8s:openapi-gen=true
diff --git a/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/register.go b/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/register.go
index e09f9ff1c4d..3bf48fa7e50 100644
--- a/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/register.go
+++ b/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/register.go
@@ -34,8 +34,10 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	// SchemeBuilder collects schemas to build.
 	SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
-	AddToScheme   = SchemeBuilder.AddToScheme
+	// AddToScheme is used by generated client to add this scheme to the generated client.
+	AddToScheme = SchemeBuilder.AddToScheme
 )
 
 // Adds the list of known types to the given scheme.
@@ -43,6 +45,8 @@ func addKnownTypes(scheme *runtime.Scheme) error {
 	scheme.AddKnownTypes(SchemeGroupVersion,
 		&CSIDriver{},
 		&CSIDriverList{},
+		&CSINodeInfo{},
+		&CSINodeInfoList{},
 	)
 
 	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
diff --git a/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/types.go b/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/types.go
index c09f1bc105f..457942b1f86 100644
--- a/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/types.go
+++ b/staging/src/k8s.io/csi-api/pkg/apis/csi/v1alpha1/types.go
@@ -74,3 +74,44 @@ type CSIDriverSpec struct {
 	// +optional
 	PodInfoRequiredOnMount *bool `json:"podInfoRequiredOnMount"`
 }
+
+// +genclient
+// +genclient:nonNamespaced
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// CSINodeInfo holds information about all CSI drivers installed on a node.
+type CSINodeInfo struct {
+	metav1.TypeMeta `json:",inline"`
+	// ObjectMeta.Name must be node name.
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	// List of CSI drivers running on the node and their properties.
+	CSIDrivers []CSIDriverInfo `json:"csiDrivers"`
+}
+
+// CSIDriverInfo contains information about one CSI driver installed on a node.
+type CSIDriverInfo struct {
+	// Driver is the name of the CSI driver that this object refers to.
+	// This MUST be the same name returned by the CSI GetPluginName() call for
+	// that driver.
+	Driver string `json:"driver"`
+
+	// ID of the node from the driver point of view.
+	NodeID string `json:"nodeID"`
+
+	// Topology keys reported by the driver on the node.
+	TopologyKeys []string `json:"topologyKeys"`
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// CSINodeInfoList is a collection of CSINodeInfo objects.
+type CSINodeInfoList struct {
+	metav1.TypeMeta `json:",inline"`
+	// Standard list metadata
+	// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
+	// +optional
+	metav1.ListMeta `json:"metadata,omitempty"`
+	// Items is the list of CSINodeInfo
+	Items []CSINodeInfo `json:"items"`
+}