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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 urllib import parse
from zunclient.common import base
from zunclient.common import utils
class Service(base.Resource):
def __repr__(self):
return "<Service %s>" % self._info
class ServiceManager(base.Manager):
resource_class = Service
@staticmethod
def _path(id=None):
return '/v1/services/%s' % id if id else '/v1/services'
def list(self, marker=None, limit=None, sort_key=None,
sort_dir=None):
"""Retrieve list of zun services.
:param marker: Optional, the ID of a zun service, eg the last
services from a previous result set. Return
the next result set.
:param limit: The maximum number of results to return per
request, if:
1) limit > 0, the maximum number of services to return.
2) limit param is NOT specified (None), the number of items
returned respect the maximum imposed by the Zun API
(see Zun's api.max_limit option).
:param sort_key: Optional, field used for sorting.
:param sort_dir: Optional, direction of sorting, either 'asc' (the
default) or 'desc'.
:returns: A list of services.
"""
if limit is not None:
limit = int(limit)
filters = utils.common_filters(marker, limit, sort_key, sort_dir)
path = ''
if filters:
path += '?' + '&'.join(filters)
if limit is None:
return self._list(self._path(path), "services")
else:
return self._list_pagination(self._path(path), "services",
limit=limit)
def delete(self, host, binary):
"""Delete a service."""
return self._delete(self._path(),
qparams={'host': host,
'binary': binary})
def _action(self, action, method='PUT', qparams=None, **kwargs):
if qparams:
action = "%s?%s" % (action,
parse.urlencode(qparams))
kwargs.setdefault('headers', {})
kwargs['headers'].setdefault('Content-Length', '0')
resp, body = self.api.json_request(method,
self._path() + action,
**kwargs)
return resp, body
def _update_body(self, host, binary, disabled_reason=None,
force_down=None):
body = {"host": host,
"binary": binary}
if disabled_reason is not None:
body["disabled_reason"] = disabled_reason
if force_down is not None:
body["forced_down"] = force_down
return body
def enable(self, host, binary):
"""Enable the service specified by hostname and binary."""
body = self._update_body(host, binary)
return self._action("/enable", qparams=body)
def disable(self, host, binary, reason=None):
"""Disable the service specified by hostname and binary."""
body = self._update_body(host, binary, reason)
return self._action("/disable", qparams=body)
def force_down(self, host, binary, force_down=None):
"""Force service state to down specified by hostname and binary."""
body = self._update_body(host, binary, force_down=force_down)
return self._action("/force_down", qparams=body)
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