Refactor "snapshot" commands

1.change the command name ``snapshot create/delete/list/
show/set/unset`` to ``volume snapshot create/delete/list/
show/set/unset``.

2.change the optional parameter "--name <name>" to a
positional parameter "<snapshot-name>"; Change the
positional parameter "<volume>" to a optional
parameter "--volume <volume>"

Change-Id: If03276ecdf6f0d96893d5ecf91c2aaa64929cff3
Implements: bp backup-snapshot-renamed-for-volume-resource
Co-Authored-By: Sheel Rana <ranasheel2000@gmail.com>

4 files changed, 679 insertions, 0 deletions

diff --git a/openstackclient/volume/v1/snapshot.py b/openstackclient/volume/v1/snapshot.py
index bc92c0f5..1c0c0bc7 100644
--- a/openstackclient/volume/v1/snapshot.py
+++ b/openstackclient/volume/v1/snapshot.py
@@ -13,6 +13,10 @@
 #   under the License.
 #
 
+# TODO(Huanxuan Ao): Remove this file and "snapshot create", "snapshot delete",
+#                    "snapshot set", "snapshot show" and "snapshot unset"
+#                    commands two cycles after Ocata.
+
 """Volume v1 Snapshot action implementations"""
 
 import copy
@@ -27,6 +31,8 @@ import six
 from openstackclient.i18n import _
 
 
+deprecated = True
+LOG_DEP = logging.getLogger('deprecated')
 LOG = logging.getLogger(__name__)
 
 
@@ -61,6 +67,8 @@ class CreateSnapshot(command.ShowOne):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot create" instead.'))
         volume_client = self.app.client_manager.volume
         volume_id = utils.find_resource(volume_client.volumes,
                                         parsed_args.volume).id
@@ -92,6 +100,8 @@ class DeleteSnapshot(command.Command):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot delete" instead.'))
         volume_client = self.app.client_manager.volume
         result = 0
 
@@ -133,6 +143,8 @@ class ListSnapshot(command.Lister):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot list" instead.'))
 
         def _format_volume_id(volume_id):
             """Return a volume name if available
@@ -214,6 +226,8 @@ class SetSnapshot(command.Command):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot set" instead.'))
         volume_client = self.app.client_manager.volume
         snapshot = utils.find_resource(volume_client.volume_snapshots,
                                        parsed_args.snapshot)
@@ -258,6 +272,8 @@ class ShowSnapshot(command.ShowOne):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot show" instead.'))
         volume_client = self.app.client_manager.volume
         snapshot = utils.find_resource(volume_client.volume_snapshots,
                                        parsed_args.snapshot)
@@ -289,6 +305,8 @@ class UnsetSnapshot(command.Command):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot unset" instead.'))
         volume_client = self.app.client_manager.volume
         snapshot = utils.find_resource(
             volume_client.volume_snapshots, parsed_args.snapshot)
diff --git a/openstackclient/volume/v1/volume_snapshot.py b/openstackclient/volume/v1/volume_snapshot.py
new file mode 100644
index 00000000..c2ecf75b
--- /dev/null
+++ b/openstackclient/volume/v1/volume_snapshot.py
@@ -0,0 +1,305 @@
+#   Copyright 2012-2013 OpenStack Foundation
+#
+#   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.
+#
+
+"""Volume v1 Snapshot action implementations"""
+
+import copy
+import logging
+
+from osc_lib.cli import parseractions
+from osc_lib.command import command
+from osc_lib import exceptions
+from osc_lib import utils
+import six
+
+from openstackclient.i18n import _
+
+
+LOG = logging.getLogger(__name__)
+
+
+class CreateVolumeSnapshot(command.ShowOne):
+    """Create new volume snapshot"""
+
+    def get_parser(self, prog_name):
+        parser = super(CreateVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshot_name',
+            metavar='<snapshot-name>',
+            nargs="?",
+            help=_('Name of the snapshot (default to None)'),
+        )
+        parser.add_argument(
+            '--volume',
+            metavar='<volume>',
+            help=_('Volume to snapshot (name or ID) '
+                   '(default is <snapshot-name>)'),
+        )
+        parser.add_argument(
+            '--description',
+            metavar='<description>',
+            help=_('Description of the snapshot'),
+        )
+        parser.add_argument(
+            '--force',
+            dest='force',
+            action='store_true',
+            default=False,
+            help=_('Create a snapshot attached to an instance. '
+                   'Default is False'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        volume = parsed_args.volume
+        if not parsed_args.volume:
+            volume = parsed_args.snapshot_name
+        volume_id = utils.find_resource(volume_client.volumes,
+                                        volume).id
+        snapshot = volume_client.volume_snapshots.create(
+            volume_id,
+            parsed_args.force,
+            parsed_args.snapshot_name,
+            parsed_args.description
+        )
+
+        snapshot._info.update(
+            {'properties': utils.format_dict(snapshot._info.pop('metadata'))}
+        )
+
+        return zip(*sorted(six.iteritems(snapshot._info)))
+
+
+class DeleteVolumeSnapshot(command.Command):
+    """Delete volume snapshot(s)"""
+
+    def get_parser(self, prog_name):
+        parser = super(DeleteVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshots',
+            metavar='<snapshot>',
+            nargs="+",
+            help=_('Snapshot(s) to delete (name or ID)'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        result = 0
+
+        for i in parsed_args.snapshots:
+            try:
+                snapshot_id = utils.find_resource(
+                    volume_client.volume_snapshots, i).id
+                volume_client.volume_snapshots.delete(snapshot_id)
+            except Exception as e:
+                result += 1
+                LOG.error(_("Failed to delete snapshot with "
+                            "name or ID '%(snapshot)s': %(e)s"),
+                          {'snapshot': i, 'e': e})
+
+        if result > 0:
+            total = len(parsed_args.snapshots)
+            msg = (_("%(result)s of %(total)s snapshots failed "
+                   "to delete.") % {'result': result, 'total': total})
+            raise exceptions.CommandError(msg)
+
+
+class ListVolumeSnapshot(command.Lister):
+    """List volume snapshots"""
+
+    def get_parser(self, prog_name):
+        parser = super(ListVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            '--all-projects',
+            action='store_true',
+            default=False,
+            help=_('Include all projects (admin only)'),
+        )
+        parser.add_argument(
+            '--long',
+            action='store_true',
+            default=False,
+            help=_('List additional fields in output'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+
+        def _format_volume_id(volume_id):
+            """Return a volume name if available
+
+            :param volume_id: a volume ID
+            :rtype: either the volume ID or name
+            """
+
+            volume = volume_id
+            if volume_id in volume_cache.keys():
+                volume = volume_cache[volume_id].display_name
+            return volume
+
+        if parsed_args.long:
+            columns = ['ID', 'Display Name', 'Display Description', 'Status',
+                       'Size', 'Created At', 'Volume ID', 'Metadata']
+            column_headers = copy.deepcopy(columns)
+            column_headers[6] = 'Volume'
+            column_headers[7] = 'Properties'
+        else:
+            columns = ['ID', 'Display Name', 'Display Description', 'Status',
+                       'Size']
+            column_headers = copy.deepcopy(columns)
+
+        # Always update Name and Description
+        column_headers[1] = 'Name'
+        column_headers[2] = 'Description'
+
+        # Cache the volume list
+        volume_cache = {}
+        try:
+            for s in self.app.client_manager.volume.volumes.list():
+                volume_cache[s.id] = s
+        except Exception:
+            # Just forget it if there's any trouble
+            pass
+
+        search_opts = {
+            'all_tenants': parsed_args.all_projects,
+        }
+
+        data = self.app.client_manager.volume.volume_snapshots.list(
+            search_opts=search_opts)
+        return (column_headers,
+                (utils.get_item_properties(
+                    s, columns,
+                    formatters={'Metadata': utils.format_dict,
+                                'Volume ID': _format_volume_id},
+                ) for s in data))
+
+
+class SetVolumeSnapshot(command.Command):
+    """Set volume snapshot properties"""
+
+    def get_parser(self, prog_name):
+        parser = super(SetVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshot',
+            metavar='<snapshot>',
+            help=_('Snapshot to modify (name or ID)')
+        )
+        parser.add_argument(
+            '--name',
+            metavar='<name>',
+            help=_('New snapshot name')
+        )
+        parser.add_argument(
+            '--description',
+            metavar='<description>',
+            help=_('New snapshot description')
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key=value>',
+            action=parseractions.KeyValueAction,
+            help=_('Property to add/change for this snapshot '
+                   '(repeat option to set multiple properties)'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        snapshot = utils.find_resource(volume_client.volume_snapshots,
+                                       parsed_args.snapshot)
+
+        result = 0
+        if parsed_args.property:
+            try:
+                volume_client.volume_snapshots.set_metadata(
+                    snapshot.id, parsed_args.property)
+            except Exception as e:
+                LOG.error(_("Failed to set snapshot property: %s"), e)
+                result += 1
+
+        kwargs = {}
+        if parsed_args.name:
+            kwargs['display_name'] = parsed_args.name
+        if parsed_args.description:
+            kwargs['display_description'] = parsed_args.description
+        if kwargs:
+            try:
+                snapshot.update(**kwargs)
+            except Exception as e:
+                LOG.error(_("Failed to update snapshot display name "
+                          "or display description: %s"), e)
+                result += 1
+
+        if result > 0:
+            raise exceptions.CommandError(_("One or more of the "
+                                          "set operations failed"))
+
+
+class ShowVolumeSnapshot(command.ShowOne):
+    """Display volume snapshot details"""
+
+    def get_parser(self, prog_name):
+        parser = super(ShowVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshot',
+            metavar='<snapshot>',
+            help=_('Snapshot to display (name or ID)')
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        snapshot = utils.find_resource(volume_client.volume_snapshots,
+                                       parsed_args.snapshot)
+
+        snapshot._info.update(
+            {'properties': utils.format_dict(snapshot._info.pop('metadata'))}
+        )
+
+        return zip(*sorted(six.iteritems(snapshot._info)))
+
+
+class UnsetVolumeSnapshot(command.Command):
+    """Unset volume snapshot properties"""
+
+    def get_parser(self, prog_name):
+        parser = super(UnsetVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshot',
+            metavar='<snapshot>',
+            help=_('Snapshot to modify (name or ID)'),
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key>',
+            action='append',
+            help=_('Property to remove from snapshot '
+                   '(repeat option to remove multiple properties)'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        snapshot = utils.find_resource(
+            volume_client.volume_snapshots, parsed_args.snapshot)
+
+        if parsed_args.property:
+            volume_client.volume_snapshots.delete_metadata(
+                snapshot.id,
+                parsed_args.property,
+            )
diff --git a/openstackclient/volume/v2/snapshot.py b/openstackclient/volume/v2/snapshot.py
index 4994e0da..2f3de211 100644
--- a/openstackclient/volume/v2/snapshot.py
+++ b/openstackclient/volume/v2/snapshot.py
@@ -12,6 +12,10 @@
 #   under the License.
 #
 
+# TODO(Huanxuan Ao): Remove this file and "snapshot create", "snapshot delete",
+#                    "snapshot set", "snapshot show" and "snapshot unset"
+#                    commands two cycles after Ocata.
+
 """Volume v2 snapshot action implementations"""
 
 import copy
@@ -26,6 +30,8 @@ import six
 from openstackclient.i18n import _
 
 
+deprecated = True
+LOG_DEP = logging.getLogger('deprecated')
 LOG = logging.getLogger(__name__)
 
 
@@ -66,6 +72,8 @@ class CreateSnapshot(command.ShowOne):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot create" instead.'))
         volume_client = self.app.client_manager.volume
         volume_id = utils.find_resource(
             volume_client.volumes, parsed_args.volume).id
@@ -96,6 +104,8 @@ class DeleteSnapshot(command.Command):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot delete" instead.'))
         volume_client = self.app.client_manager.volume
         result = 0
 
@@ -149,6 +159,8 @@ class ListSnapshot(command.Lister):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot list" instead.'))
 
         def _format_volume_id(volume_id):
             """Return a volume name if available
@@ -239,6 +251,8 @@ class SetSnapshot(command.Command):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot set" instead.'))
         volume_client = self.app.client_manager.volume
         snapshot = utils.find_resource(volume_client.volume_snapshots,
                                        parsed_args.snapshot)
@@ -292,6 +306,8 @@ class ShowSnapshot(command.ShowOne):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot show" instead.'))
         volume_client = self.app.client_manager.volume
         snapshot = utils.find_resource(
             volume_client.volume_snapshots, parsed_args.snapshot)
@@ -322,6 +338,8 @@ class UnsetSnapshot(command.Command):
         return parser
 
     def take_action(self, parsed_args):
+        LOG_DEP.warning(_('This command has been deprecated. '
+                          'Please use "volume snapshot unset" instead.'))
         volume_client = self.app.client_manager.volume
         snapshot = utils.find_resource(
             volume_client.volume_snapshots, parsed_args.snapshot)
diff --git a/openstackclient/volume/v2/volume_snapshot.py b/openstackclient/volume/v2/volume_snapshot.py
new file mode 100644
index 00000000..43f30326
--- /dev/null
+++ b/openstackclient/volume/v2/volume_snapshot.py
@@ -0,0 +1,338 @@
+#
+#   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.
+#
+
+"""Volume v2 snapshot action implementations"""
+
+import copy
+import logging
+
+from osc_lib.cli import parseractions
+from osc_lib.command import command
+from osc_lib import exceptions
+from osc_lib import utils
+import six
+
+from openstackclient.i18n import _
+
+
+LOG = logging.getLogger(__name__)
+
+
+class CreateVolumeSnapshot(command.ShowOne):
+    """Create new volume snapshot"""
+
+    def get_parser(self, prog_name):
+        parser = super(CreateVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            "snapshot_name",
+            metavar="<snapshot-name>",
+            nargs="?",
+            help=_("Name of the new snapshot (default to None)")
+        )
+        parser.add_argument(
+            "--volume",
+            metavar="<volume>",
+            help=_("Volume to snapshot (name or ID) "
+                   "(default is <snapshot-name>)")
+        )
+        parser.add_argument(
+            "--description",
+            metavar="<description>",
+            help=_("Description of the snapshot")
+        )
+        parser.add_argument(
+            "--force",
+            action="store_true",
+            default=False,
+            help=_("Create a snapshot attached to an instance. "
+                   "Default is False")
+        )
+        parser.add_argument(
+            "--property",
+            metavar="<key=value>",
+            action=parseractions.KeyValueAction,
+            help=_("Set a property to this snapshot "
+                   "(repeat option to set multiple properties)"),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        volume = parsed_args.volume
+        if not parsed_args.volume:
+            volume = parsed_args.snapshot_name
+        volume_id = utils.find_resource(
+            volume_client.volumes, volume).id
+        snapshot = volume_client.volume_snapshots.create(
+            volume_id,
+            force=parsed_args.force,
+            name=parsed_args.snapshot_name,
+            description=parsed_args.description,
+            metadata=parsed_args.property,
+        )
+        snapshot._info.update(
+            {'properties': utils.format_dict(snapshot._info.pop('metadata'))}
+        )
+        return zip(*sorted(six.iteritems(snapshot._info)))
+
+
+class DeleteVolumeSnapshot(command.Command):
+    """Delete volume snapshot(s)"""
+
+    def get_parser(self, prog_name):
+        parser = super(DeleteVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            "snapshots",
+            metavar="<snapshot>",
+            nargs="+",
+            help=_("Snapshot(s) to delete (name or ID)")
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        result = 0
+
+        for i in parsed_args.snapshots:
+            try:
+                snapshot_id = utils.find_resource(
+                    volume_client.volume_snapshots, i).id
+                volume_client.volume_snapshots.delete(snapshot_id)
+            except Exception as e:
+                result += 1
+                LOG.error(_("Failed to delete snapshot with "
+                            "name or ID '%(snapshot)s': %(e)s")
+                          % {'snapshot': i, 'e': e})
+
+        if result > 0:
+            total = len(parsed_args.snapshots)
+            msg = (_("%(result)s of %(total)s snapshots failed "
+                   "to delete.") % {'result': result, 'total': total})
+            raise exceptions.CommandError(msg)
+
+
+class ListVolumeSnapshot(command.Lister):
+    """List volume snapshots"""
+
+    def get_parser(self, prog_name):
+        parser = super(ListVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            '--all-projects',
+            action='store_true',
+            default=False,
+            help=_('Include all projects (admin only)'),
+        )
+        parser.add_argument(
+            '--long',
+            action='store_true',
+            default=False,
+            help=_('List additional fields in output'),
+        )
+        parser.add_argument(
+            '--marker',
+            metavar='<marker>',
+            help=_('The last snapshot ID of the previous page'),
+        )
+        parser.add_argument(
+            '--limit',
+            type=int,
+            action=parseractions.NonNegativeAction,
+            metavar='<limit>',
+            help=_('Maximum number of snapshots to display'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+
+        def _format_volume_id(volume_id):
+            """Return a volume name if available
+
+            :param volume_id: a volume ID
+            :rtype: either the volume ID or name
+            """
+
+            volume = volume_id
+            if volume_id in volume_cache.keys():
+                volume = volume_cache[volume_id].name
+            return volume
+
+        if parsed_args.long:
+            columns = ['ID', 'Name', 'Description', 'Status',
+                       'Size', 'Created At', 'Volume ID', 'Metadata']
+            column_headers = copy.deepcopy(columns)
+            column_headers[6] = 'Volume'
+            column_headers[7] = 'Properties'
+        else:
+            columns = ['ID', 'Name', 'Description', 'Status', 'Size']
+            column_headers = copy.deepcopy(columns)
+
+        # Cache the volume list
+        volume_cache = {}
+        try:
+            for s in self.app.client_manager.volume.volumes.list():
+                volume_cache[s.id] = s
+        except Exception:
+            # Just forget it if there's any trouble
+            pass
+
+        search_opts = {
+            'all_tenants': parsed_args.all_projects,
+        }
+
+        data = self.app.client_manager.volume.volume_snapshots.list(
+            search_opts=search_opts,
+            marker=parsed_args.marker,
+            limit=parsed_args.limit,
+        )
+        return (column_headers,
+                (utils.get_item_properties(
+                    s, columns,
+                    formatters={'Metadata': utils.format_dict,
+                                'Volume ID': _format_volume_id},
+                ) for s in data))
+
+
+class SetVolumeSnapshot(command.Command):
+    """Set volume snapshot properties"""
+
+    def get_parser(self, prog_name):
+        parser = super(SetVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshot',
+            metavar='<snapshot>',
+            help=_('Snapshot to modify (name or ID)')
+        )
+        parser.add_argument(
+            '--name',
+            metavar='<name>',
+            help=_('New snapshot name')
+        )
+        parser.add_argument(
+            '--description',
+            metavar='<description>',
+            help=_('New snapshot description')
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key=value>',
+            action=parseractions.KeyValueAction,
+            help=_('Property to add/change for this snapshot '
+                   '(repeat option to set multiple properties)'),
+        )
+        parser.add_argument(
+            '--state',
+            metavar='<state>',
+            choices=['available', 'error', 'creating', 'deleting',
+                     'error-deleting'],
+            help=_('New snapshot state. ("available", "error", "creating", '
+                   '"deleting", or "error_deleting") (admin only) '
+                   '(This option simply changes the state of the snapshot '
+                   'in the database with no regard to actual status, '
+                   'exercise caution when using)'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        snapshot = utils.find_resource(volume_client.volume_snapshots,
+                                       parsed_args.snapshot)
+
+        result = 0
+        if parsed_args.property:
+            try:
+                volume_client.volume_snapshots.set_metadata(
+                    snapshot.id, parsed_args.property)
+            except Exception as e:
+                LOG.error(_("Failed to set snapshot property: %s"), e)
+                result += 1
+
+        if parsed_args.state:
+            try:
+                volume_client.volume_snapshots.reset_state(
+                    snapshot.id, parsed_args.state)
+            except Exception as e:
+                LOG.error(_("Failed to set snapshot state: %s"), e)
+                result += 1
+
+        kwargs = {}
+        if parsed_args.name:
+            kwargs['name'] = parsed_args.name
+        if parsed_args.description:
+            kwargs['description'] = parsed_args.description
+        if kwargs:
+            try:
+                volume_client.volume_snapshots.update(
+                    snapshot.id, **kwargs)
+            except Exception as e:
+                LOG.error(_("Failed to update snapshot name "
+                          "or description: %s"), e)
+                result += 1
+
+        if result > 0:
+            raise exceptions.CommandError(_("One or more of the "
+                                          "set operations failed"))
+
+
+class ShowVolumeSnapshot(command.ShowOne):
+    """Display volume snapshot details"""
+
+    def get_parser(self, prog_name):
+        parser = super(ShowVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            "snapshot",
+            metavar="<snapshot>",
+            help=_("Snapshot to display (name or ID)")
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        snapshot = utils.find_resource(
+            volume_client.volume_snapshots, parsed_args.snapshot)
+        snapshot._info.update(
+            {'properties': utils.format_dict(snapshot._info.pop('metadata'))}
+        )
+        return zip(*sorted(six.iteritems(snapshot._info)))
+
+
+class UnsetVolumeSnapshot(command.Command):
+    """Unset volume snapshot properties"""
+
+    def get_parser(self, prog_name):
+        parser = super(UnsetVolumeSnapshot, self).get_parser(prog_name)
+        parser.add_argument(
+            'snapshot',
+            metavar='<snapshot>',
+            help=_('Snapshot to modify (name or ID)'),
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key>',
+            action='append',
+            default=[],
+            help=_('Property to remove from snapshot '
+                   '(repeat option to remove multiple properties)'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        volume_client = self.app.client_manager.volume
+        snapshot = utils.find_resource(
+            volume_client.volume_snapshots, parsed_args.snapshot)
+
+        if parsed_args.property:
+            volume_client.volume_snapshots.delete_metadata(
+                snapshot.id,
+                parsed_args.property,
+            )