125 lines
4.5 KiB
Python
125 lines
4.5 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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service interface
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"""
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from cinderclient import api_versions
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from cinderclient import base
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class Service(base.Resource):
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def __repr__(self):
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return "<Service: binary=%s host=%s>" % (self.binary, self.host)
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class LogLevel(base.Resource):
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def __repr__(self):
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return '<LogLevel: binary=%s host=%s prefix=%s level=%s>' % (
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self.binary, self.host, self.prefix, self.level)
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class ServiceManagerBase(base.ManagerWithFind):
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resource_class = Service
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def list(self, host=None, binary=None):
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"""
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Describes service list for host.
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:param host: destination host name.
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:param binary: service binary.
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"""
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url = "/os-services"
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filters = []
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if host:
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filters.append("host=%s" % host)
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if binary:
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filters.append("binary=%s" % binary)
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if filters:
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url = "%s?%s" % (url, "&".join(filters))
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return self._list(url, "services")
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def enable(self, host, binary):
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"""Enable the service specified by hostname and binary."""
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body = {"host": host, "binary": binary}
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result = self._update("/os-services/enable", body)
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return self.resource_class(self, result, resp=result.request_ids)
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def disable(self, host, binary):
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"""Disable the service specified by hostname and binary."""
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body = {"host": host, "binary": binary}
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result = self._update("/os-services/disable", body)
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return self.resource_class(self, result, resp=result.request_ids)
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def disable_log_reason(self, host, binary, reason):
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"""Disable the service with reason."""
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body = {"host": host, "binary": binary, "disabled_reason": reason}
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result = self._update("/os-services/disable-log-reason", body)
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return self.resource_class(self, result, resp=result.request_ids)
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def freeze_host(self, host):
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"""Freeze the service specified by hostname."""
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body = {"host": host}
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return self._update("/os-services/freeze", body)
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def thaw_host(self, host):
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"""Thaw the service specified by hostname."""
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body = {"host": host}
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return self._update("/os-services/thaw", body)
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def failover_host(self, host, backend_id):
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"""Failover a replicated backend by hostname."""
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body = {"host": host, "backend_id": backend_id}
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return self._update("/os-services/failover_host", body)
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class ServiceManager(ServiceManagerBase):
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@api_versions.wraps("3.0")
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def server_api_version(self):
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"""Returns the API Version supported by the server.
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:return: Returns response obj for a server that supports microversions.
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Returns an empty list for Liberty and prior Cinder servers.
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"""
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try:
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return self._get_with_base_url("", response_key='versions')
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except LookupError:
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return []
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@api_versions.wraps("3.32")
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def set_log_levels(self, level, binary, server, prefix):
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"""Set log level for services."""
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body = {'level': level, 'binary': binary, 'server': server,
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'prefix': prefix}
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return self._update("/os-services/set-log", body)
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@api_versions.wraps("3.32")
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def get_log_levels(self, binary, server, prefix):
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"""Get log levels for services."""
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body = {'binary': binary, 'server': server, 'prefix': prefix}
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response = self._update("/os-services/get-log", body)
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log_levels = []
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for entry in response['log_levels']:
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entry_levels = sorted(entry['levels'].items(), key=lambda x: x[0])
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for prefix, level in entry_levels:
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log_dict = {'binary': entry['binary'], 'host': entry['host'],
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'prefix': prefix, 'level': level}
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log_levels.append(LogLevel(self, log_dict, loaded=True))
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return log_levels
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