74 lines
1.8 KiB
Python
74 lines
1.8 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import logging
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import os
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import os.path
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from kazoo import client
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from kazoo import exceptions
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from oslo_config import cfg
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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CONF.import_group('zookeeper', 'kolla_mesos.config.zookeeper')
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def clean(zk, path='/kolla'):
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zk.delete(path, recursive=True)
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def _list_all(path, zk):
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values = {}
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data, stat = zk.get(path)
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if stat.dataLength > 0:
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values[path] = data.decode('utf-8')
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try:
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children = zk.get_children(path)
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except exceptions.NoNodeError:
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children = []
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for child in children:
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cvalues = _list_all(os.path.join(path, child), zk)
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if cvalues is not None:
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values.update(cvalues)
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return values
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def list_all(path):
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if path is None:
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path = '/'
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with connection() as zk:
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return _list_all(path, zk)
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def get_one(path):
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with connection() as zk:
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data, stat = zk.get(path)
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return {path: data.decode('utf-8')}
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def set_one(path, value):
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with connection() as zk:
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zk.set(path, value.encode('utf-8'))
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@contextlib.contextmanager
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def connection():
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zk = client.KazooClient(hosts=CONF.zookeeper.host)
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try:
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zk.start()
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yield zk
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finally:
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zk.stop()
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