feat(zfs-localpv): initial commit

provisioning and deprovisioning of
the volumes on the node where zfs pool
has already been setup. Pool name and the volume
parameters has to be given in storage class
which will be used to provision the volume.

Signed-off-by: Pawan <pawan@mayadata.io>

pkg/apis/openebs.io/core/v1alpha1/register.go

@@ -0,0 +1,77 @@
+/*
+Copyright © 2019 The OpenEBS 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 v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// SchemeGroupVersion is group version used
+// to register custom resources
+//
+// NOTE:
+//  This variable name should not be changed
+var SchemeGroupVersion = schema.GroupVersion{
+	Group:   "openebs.io",
+	Version: "v1alpha1",
+}
+
+// Resource takes an unqualified resource and
+// returns a Group qualified GroupResource
+func Resource(resource string) schema.GroupResource {
+	return SchemeGroupVersion.
+		WithResource(resource).
+		GroupResource()
+}
+
+var (
+	// SchemeBuilder is the scheme builder
+	// with scheme init functions to run
+	// for this API package
+	SchemeBuilder runtime.SchemeBuilder
+
+	localSchemeBuilder = &SchemeBuilder
+
+	// AddToScheme is a global function that
+	// registers this API group & version to
+	// a scheme
+	AddToScheme = localSchemeBuilder.AddToScheme
+)
+
+func init() {
+	// We only register manually written functions
+	// here. This registration of generated functions
+	// takes place in the generated files.
+	//
+	// NOTE:
+	//  This separation makes the code compile even
+	// when the generated files are missing.
+	localSchemeBuilder.Register(addKnownTypes)
+}
+
+// Adds the list of known types to api.Scheme.
+func addKnownTypes(scheme *runtime.Scheme) error {
+	scheme.AddKnownTypes(
+		SchemeGroupVersion,
+		&ZFSVolume{},
+		&ZFSVolumeList{},
+	)
+	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
+	return nil
+}