project cleanup

New implementation of the project cleanup based on the sdk.project_cleanup.
It is implemented as an additional OSC operation and will ideally obsolete the 
`openstack project purge` giving flexibility to extend services support, 
parallelization, filters, etc.

Change-Id: Ie08877f182379f73e5ec5ad4daaf84b3092c829c

1 files changed, 140 insertions, 0 deletions

diff --git a/openstackclient/common/project_cleanup.py b/openstackclient/common/project_cleanup.py
new file mode 100644
index 00000000..f2536354
--- /dev/null
+++ b/openstackclient/common/project_cleanup.py
@@ -0,0 +1,140 @@
+#   Copyright 2020 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.
+#
+
+import getpass
+import logging
+import os
+import queue
+
+from cliff.formatters import table
+from osc_lib.command import command
+
+from openstackclient.i18n import _
+from openstackclient.identity import common as identity_common
+
+
+LOG = logging.getLogger(__name__)
+
+
+def ask_user_yesno(msg, default=True):
+    """Ask user Y/N question
+
+    :param str msg: question text
+    :param bool default: default value
+    :return bool: User choice
+    """
+    while True:
+        answer = getpass._raw_input(
+            '{} [{}]: '.format(msg, 'y/N' if not default else 'Y/n'))
+        if answer in ('y', 'Y', 'yes'):
+            return True
+        elif answer in ('n', 'N', 'no'):
+            return False
+
+
+class ProjectCleanup(command.Command):
+    _description = _("Clean resources associated with a project")
+
+    def get_parser(self, prog_name):
+        parser = super(ProjectCleanup, self).get_parser(prog_name)
+        parser.add_argument(
+            '--dry-run',
+            action='store_true',
+            help=_("List a project's resources")
+        )
+        project_group = parser.add_mutually_exclusive_group(required=True)
+        project_group.add_argument(
+            '--auth-project',
+            action='store_true',
+            help=_('Delete resources of the project used to authenticate')
+        )
+        project_group.add_argument(
+            '--project',
+            metavar='<project>',
+            help=_('Project to clean (name or ID)')
+        )
+        parser.add_argument(
+            '--created-before',
+            metavar='<YYYY-MM-DDTHH24:MI:SS>',
+            help=_('Drop resources created before the given time')
+        )
+        parser.add_argument(
+            '--updated-before',
+            metavar='<YYYY-MM-DDTHH24:MI:SS>',
+            help=_('Drop resources updated before the given time')
+        )
+        identity_common.add_project_domain_option_to_parser(parser)
+        return parser
+
+    def take_action(self, parsed_args):
+        sdk = self.app.client_manager.sdk_connection
+
+        if parsed_args.auth_project:
+            project_connect = sdk
+        elif parsed_args.project:
+            project = sdk.identity.find_project(
+                name_or_id=parsed_args.project,
+                ignore_missing=False)
+            project_connect = sdk.connect_as_project(project)
+
+        if project_connect:
+            status_queue = queue.Queue()
+            parsed_args.max_width = int(os.environ.get('CLIFF_MAX_TERM_WIDTH',
+                                                       0))
+            parsed_args.fit_width = bool(int(os.environ.get('CLIFF_FIT_WIDTH',
+                                                            0)))
+            parsed_args.print_empty = False
+            table_fmt = table.TableFormatter()
+
+            self.log.info('Searching resources...')
+
+            filters = {}
+            if parsed_args.created_before:
+                filters['created_at'] = parsed_args.created_before
+
+            if parsed_args.updated_before:
+                filters['updated_at'] = parsed_args.updated_before
+
+            project_connect.project_cleanup(dry_run=True,
+                                            status_queue=status_queue,
+                                            filters=filters)
+
+            data = []
+            while not status_queue.empty():
+                resource = status_queue.get_nowait()
+                data.append(
+                    (type(resource).__name__, resource.id, resource.name))
+                status_queue.task_done()
+            status_queue.join()
+            table_fmt.emit_list(
+                ('Type', 'ID', 'Name'),
+                data,
+                self.app.stdout,
+                parsed_args
+            )
+
+            if parsed_args.dry_run:
+                return
+
+            confirm = ask_user_yesno(
+                _("These resources will be deleted. Are you sure"),
+                default=False)
+
+            if confirm:
+                self.log.warning(_('Deleting resources'))
+
+                project_connect.project_cleanup(dry_run=False,
+                                                status_queue=status_queue,
+                                                filters=filters)