refactor(crd): move CR from openebs.io to zfs.openebs.io (#70)

Changed the group name from openebs.io to zfs.openebs.io.

Now ZFS Volume CR will look like this : 
```
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: zfszvolumes.zfs.openebs.io
spec:
  group: zfs.openebs.io
  version: v1alpha1
  scope: Namespaced
  names:
    plural: zfsvolumes
    singular: zfsvolume
    kind:ZFSVolume
    shortNames:
    - zfsvol
    - zv
```

Snapshot CR will look like this :
```
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: zfssnapshots.zfs.openebs.io
spec:
  group: zfs.openebs.io
  version: v1alpha1
  scope: Namespaced
  names:
    plural: fssnapshots
    singular: zfssnapshot
    kind: ZFSSnapshot
    shortNames:
    - zfssnapshot
    - zfssnap

```


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

pkg/generated/informer/externalversions/zfs/v1alpha1/interface.go

@@ -0,0 +1,52 @@
+/*
+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.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	internalinterfaces "github.com/openebs/zfs-localpv/pkg/generated/informer/externalversions/internalinterfaces"
+)
+
+// Interface provides access to all the informers in this group version.
+type Interface interface {
+	// ZFSSnapshots returns a ZFSSnapshotInformer.
+	ZFSSnapshots() ZFSSnapshotInformer
+	// ZFSVolumes returns a ZFSVolumeInformer.
+	ZFSVolumes() ZFSVolumeInformer
+}
+
+type version struct {
+	factory          internalinterfaces.SharedInformerFactory
+	namespace        string
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+}
+
+// New returns a new Interface.
+func New(f internalinterfaces.SharedInformerFactory, namespace string, tweakListOptions internalinterfaces.TweakListOptionsFunc) Interface {
+	return &version{factory: f, namespace: namespace, tweakListOptions: tweakListOptions}
+}
+
+// ZFSSnapshots returns a ZFSSnapshotInformer.
+func (v *version) ZFSSnapshots() ZFSSnapshotInformer {
+	return &zFSSnapshotInformer{factory: v.factory, namespace: v.namespace, tweakListOptions: v.tweakListOptions}
+}
+
+// ZFSVolumes returns a ZFSVolumeInformer.
+func (v *version) ZFSVolumes() ZFSVolumeInformer {
+	return &zFSVolumeInformer{factory: v.factory, namespace: v.namespace, tweakListOptions: v.tweakListOptions}
+}

pkg/generated/informer/externalversions/zfs/v1alpha1/zfssnapshot.go

@@ -0,0 +1,89 @@
+/*
+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.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	time "time"
+
+	zfsv1alpha1 "github.com/openebs/zfs-localpv/pkg/apis/openebs.io/zfs/v1alpha1"
+	internalclientset "github.com/openebs/zfs-localpv/pkg/generated/clientset/internalclientset"
+	internalinterfaces "github.com/openebs/zfs-localpv/pkg/generated/informer/externalversions/internalinterfaces"
+	v1alpha1 "github.com/openebs/zfs-localpv/pkg/generated/lister/zfs/v1alpha1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	watch "k8s.io/apimachinery/pkg/watch"
+	cache "k8s.io/client-go/tools/cache"
+)
+
+// ZFSSnapshotInformer provides access to a shared informer and lister for
+// ZFSSnapshots.
+type ZFSSnapshotInformer interface {
+	Informer() cache.SharedIndexInformer
+	Lister() v1alpha1.ZFSSnapshotLister
+}
+
+type zFSSnapshotInformer struct {
+	factory          internalinterfaces.SharedInformerFactory
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+	namespace        string
+}
+
+// NewZFSSnapshotInformer constructs a new informer for ZFSSnapshot type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewZFSSnapshotInformer(client internalclientset.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers) cache.SharedIndexInformer {
+	return NewFilteredZFSSnapshotInformer(client, namespace, resyncPeriod, indexers, nil)
+}
+
+// NewFilteredZFSSnapshotInformer constructs a new informer for ZFSSnapshot type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewFilteredZFSSnapshotInformer(client internalclientset.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers, tweakListOptions internalinterfaces.TweakListOptionsFunc) cache.SharedIndexInformer {
+	return cache.NewSharedIndexInformer(
+		&cache.ListWatch{
+			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.OpenebsV1alpha1().ZFSSnapshots(namespace).List(options)
+			},
+			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.OpenebsV1alpha1().ZFSSnapshots(namespace).Watch(options)
+			},
+		},
+		&zfsv1alpha1.ZFSSnapshot{},
+		resyncPeriod,
+		indexers,
+	)
+}
+
+func (f *zFSSnapshotInformer) defaultInformer(client internalclientset.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
+	return NewFilteredZFSSnapshotInformer(client, f.namespace, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, f.tweakListOptions)
+}
+
+func (f *zFSSnapshotInformer) Informer() cache.SharedIndexInformer {
+	return f.factory.InformerFor(&zfsv1alpha1.ZFSSnapshot{}, f.defaultInformer)
+}
+
+func (f *zFSSnapshotInformer) Lister() v1alpha1.ZFSSnapshotLister {
+	return v1alpha1.NewZFSSnapshotLister(f.Informer().GetIndexer())
+}

pkg/generated/informer/externalversions/zfs/v1alpha1/zfsvolume.go

@@ -0,0 +1,89 @@
+/*
+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.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	time "time"
+
+	zfsv1alpha1 "github.com/openebs/zfs-localpv/pkg/apis/openebs.io/zfs/v1alpha1"
+	internalclientset "github.com/openebs/zfs-localpv/pkg/generated/clientset/internalclientset"
+	internalinterfaces "github.com/openebs/zfs-localpv/pkg/generated/informer/externalversions/internalinterfaces"
+	v1alpha1 "github.com/openebs/zfs-localpv/pkg/generated/lister/zfs/v1alpha1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	watch "k8s.io/apimachinery/pkg/watch"
+	cache "k8s.io/client-go/tools/cache"
+)
+
+// ZFSVolumeInformer provides access to a shared informer and lister for
+// ZFSVolumes.
+type ZFSVolumeInformer interface {
+	Informer() cache.SharedIndexInformer
+	Lister() v1alpha1.ZFSVolumeLister
+}
+
+type zFSVolumeInformer struct {
+	factory          internalinterfaces.SharedInformerFactory
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+	namespace        string
+}
+
+// NewZFSVolumeInformer constructs a new informer for ZFSVolume type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewZFSVolumeInformer(client internalclientset.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers) cache.SharedIndexInformer {
+	return NewFilteredZFSVolumeInformer(client, namespace, resyncPeriod, indexers, nil)
+}
+
+// NewFilteredZFSVolumeInformer constructs a new informer for ZFSVolume type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewFilteredZFSVolumeInformer(client internalclientset.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers, tweakListOptions internalinterfaces.TweakListOptionsFunc) cache.SharedIndexInformer {
+	return cache.NewSharedIndexInformer(
+		&cache.ListWatch{
+			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.OpenebsV1alpha1().ZFSVolumes(namespace).List(options)
+			},
+			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.OpenebsV1alpha1().ZFSVolumes(namespace).Watch(options)
+			},
+		},
+		&zfsv1alpha1.ZFSVolume{},
+		resyncPeriod,
+		indexers,
+	)
+}
+
+func (f *zFSVolumeInformer) defaultInformer(client internalclientset.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
+	return NewFilteredZFSVolumeInformer(client, f.namespace, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, f.tweakListOptions)
+}
+
+func (f *zFSVolumeInformer) Informer() cache.SharedIndexInformer {
+	return f.factory.InformerFor(&zfsv1alpha1.ZFSVolume{}, f.defaultInformer)
+}
+
+func (f *zFSVolumeInformer) Lister() v1alpha1.ZFSVolumeLister {
+	return v1alpha1.NewZFSVolumeLister(f.Informer().GetIndexer())
+}