Add nfsOptions parameter to sample storageclass.yaml

Signed-off-by: James Munson <james.munson@suse.com>
(cherry picked from commit c0a258afef)

# Conflicts:
#	examples/v2/storageclass.yaml

examples/storageclass.yaml

@@ -21,3 +21,4 @@ parameters:
 #  nodeSelector: "storage,fast"
 #  recurringJobSelector: '[{"name":"snap-group", "isGroup":true},
 #                          {"name":"backup", "isGroup":false}]'
+#  nfsOptions: "soft,timeo=150,retrans=3"

examples/v2/storageclass.yaml

@@ -0,0 +1,28 @@
+kind: StorageClass
+apiVersion: storage.k8s.io/v1
+metadata:
+  name: longhorn-v2-data-engine
+provisioner: driver.longhorn.io
+allowVolumeExpansion: true
+reclaimPolicy: Delete
+volumeBindingMode: Immediate
+parameters:
+  # backup, backingImage and snapshot related parameters are not supported in SPDK preview stage
+  numberOfReplicas: "3"
+  staleReplicaTimeout: "2880"
+  fsType: "ext4"
+  backendStoreDriver: "v2"
+#  mkfsParams: "-I 256 -b 4096 -O ^metadata_csum,^64bit"
+#  nodeSelector: "storage,fast"
+#  recurringJobSelector: '[{"name":"snap-group", "isGroup":true},
+#                          {"name":"backup", "isGroup":false}]'
+#  fromBackup: ""
+#  backingImage: "bi-test"
+#  backingImageDataSourceType: "download"
+#  backingImageDataSourceParameters: '{"url": "https://backing-image-example.s3-region.amazonaws.com/test-backing-image"}'
+#  backingImageChecksum: "SHA512 checksum of the backing image"
+#  unmapMarkSnapChainRemoved: "ignored"
+#  diskSelector: "ssd,fast"
+#  nfsOptions: "soft,timeo=150,retrans=3"
+
+