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# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# 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
from oslo_middleware.healthcheck import pluginbase
from oslo_middleware.i18n import _LW
LOG = logging.getLogger(__name__)
class DisableByFileHealthcheck(pluginbase.HealthcheckBaseExtension):
def healthcheck(self):
path = self.conf.get('disable_by_file_path')
if path is None:
LOG.warning(_LW('DisableByFile healthcheck middleware enabled '
'without disable_by_file_path set'))
return pluginbase.HealthcheckResult(available=True,
reason="")
elif not os.path.exists(path):
return pluginbase.HealthcheckResult(available=True,
reason="")
else:
return pluginbase.HealthcheckResult(available=False,
reason="DISABLED BY FILE")
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