python utility to manage a tripleo based cloud
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python-tripleoclient/tripleoclient/v1/overcloud_export.py

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# 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.
from datetime import datetime
import logging
import os.path
import yaml
from osc_lib.i18n import _
from osc_lib import utils
from tripleoclient import command
from tripleoclient import export
class ExportOvercloud(command.Command):
"""Export stack information used as import of another stack"""
log = logging.getLogger(__name__ + ".ExportOvercloud")
now = datetime.now().strftime('%Y%m%d%H%M%S')
def get_parser(self, prog_name):
parser = super(ExportOvercloud, self).get_parser(prog_name)
parser.add_argument('--stack',
dest='stack',
metavar='<stack>',
help=_('Name of the environment main Heat stack '
'to export information from. '
'(default=Env: OVERCLOUD_STACK_NAME)'),
default=utils.env('OVERCLOUD_STACK_NAME',
default='overcloud'))
parser.add_argument('--output-file', '-o', metavar='<output file>',
help=_('Name of the output file for the stack '
'data export. It will default to '
'"<name>.yaml"'))
parser.add_argument('--force-overwrite', '-f', action='store_true',
default=False,
help=_('Overwrite output file if it exists.'))
parser.add_argument('--config-download-dir',
action='store',
help=_('Directory to search for config-download '
'export data. Defaults to '
'$HOME/config-download'))
parser.add_argument('--no-password-excludes',
action='store_true',
dest='no_password_excludes',
help=_('Don''t exclude certain passwords from '
'the password export. Defaults to False '
'in that some passwords will be excluded '
'that are not typically necessary.'))
return parser
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
stack = parsed_args.stack
output_file = parsed_args.output_file or \
'%s-export.yaml' % stack
self.log.info('Running at %s with parameters %s',
self.now,
parsed_args)
if os.path.exists(output_file) and not parsed_args.force_overwrite:
raise Exception(
"File '%s' already exists, not exporting." % output_file)
if not parsed_args.config_download_dir:
config_download_dir = os.path.join(os.environ.get('HOME'),
'config-download')
else:
config_download_dir = parsed_args.config_download_dir
# prepare clients to access the environment
clients = self.app.client_manager
swift_client = clients.tripleoclient.object_store
data = export.export_passwords(swift_client, stack,
not parsed_args.no_password_excludes)
data.update(export.export_stack(
clients.orchestration, stack, False, config_download_dir))
# do not add extra host entries for VIPs for stacks deployed off that
# exported data, since it already contains those entries
data.update({'AddVipsToEtcHosts': False})
data = dict(parameter_defaults=data)
# write the exported data
with open(output_file, 'w') as f:
yaml.safe_dump(data, f, default_flow_style=False)
print("Stack information exported to %s." % output_file)