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

116 lines
4.2 KiB

# 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 logging
import os
import shutil
from six.moves.urllib import request
from osc_lib.i18n import _
from oslo_concurrency import processutils
from tripleoclient import command
from tripleoclient.workflows import deployment
class DownloadConfig(command.Command):
"""Download Overcloud Config"""
log = logging.getLogger(__name__ + ".DownloadConfig")
def get_parser(self, prog_name):
parser = super(DownloadConfig, self).get_parser(prog_name)
parser.add_argument(
'--name',
dest='name',
default='overcloud',
help=_('The name of the plan, which is used for the object '
'storage container, workflow environment and orchestration '
'stack names.'),
)
parser.add_argument(
'--config-dir',
dest='config_dir',
default=os.path.expanduser("~")+'/tripleo-config',
help=_('The directory where the configuration files will be '
'pushed'),
)
parser.add_argument(
'--config-type',
dest='config_type',
type=list,
default=None,
help=_('Type of object config to be extract from the deployment, '
'defaults to all keys available'),
)
parser.add_argument(
'--no-preserve-config',
dest='preserve_config_dir',
action='store_false',
default=True,
help=('If specified, will delete and recreate the --config-dir '
'if it already exists. Default is to use the existing dir '
'location and overwrite files. Files in --config-dir not '
'from the stack will be preserved by default.')
)
return parser
def create_config_dir(self, config_dir, preserve_config_dir=True):
# Create config directory
if os.path.exists(config_dir) and preserve_config_dir is False:
try:
self.log.info("Directory %s already exists, removing"
% config_dir)
shutil.rmtree(config_dir)
except OSError as e:
message = 'Failed to remove: %s, error: %s' % (config_dir,
str(e))
raise OSError(message)
if not os.path.exists(config_dir):
os.makedirs(config_dir)
def take_action(self, parsed_args):
self.log.debug("take_action(%s)" % parsed_args)
name = parsed_args.name
config_dir = parsed_args.config_dir
work_dir = os.path.join(config_dir, name)
config_type = parsed_args.config_type
preserve_config_dir = parsed_args.preserve_config_dir
self.create_config_dir(work_dir, preserve_config_dir)
# Get config
print("Starting config-download export...")
tempurl = deployment.config_download_export(
self.app.client_manager,
plan=name,
config_type=config_type
)
print("Finished config-download export.")
self.log.debug("config-download tempurl: %s" % tempurl)
f = request.urlopen(tempurl)
tarball_contents = f.read()
f.close()
tarball_name = "%s-config.tar.gz" % name
tarball_path = os.path.join(work_dir, tarball_name)
with open(tarball_path, 'wb') as f:
f.write(tarball_contents)
print("Extracting config-download...")
cmd = ['/usr/bin/tar', '-C', work_dir, '-xf', tarball_path]
processutils.execute(*cmd)
print("The TripleO configuration has been successfully generated "
"into: {0}".format(work_dir))