85 lines
2.4 KiB
Python
85 lines
2.4 KiB
Python
# Copyright 2017 Catalyst IT Limited
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#
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# 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 etcd3gw
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from oslo_config import cfg
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CONF = cfg.CONF
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CLIENT = None
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def get_client(conf=None):
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global CLIENT
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conf = conf or CONF
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if not CLIENT:
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CLIENT = etcd3gw.client(host=conf.etcd.host, port=conf.etcd.port)
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return CLIENT
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def get_worker_lock(function_id, version=0):
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client = get_client()
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lock_id = "function_worker_%s_%s" % (function_id, version)
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return client.lock(id=lock_id)
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def get_function_version_lock(function_id):
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client = get_client()
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lock_id = "function_version_%s" % function_id
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return client.lock(id=lock_id)
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def create_worker(function_id, worker, version=0):
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"""Create the worker info in etcd.
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The worker parameter is assumed to be unique.
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"""
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# NOTE(huntxu): for the kubernetes orchestrator, which is the only
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# available orchestrator at the moment, the value of the worker param
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# is the name of the pod so it is unique.
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client = get_client()
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client.create(
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'%s_%s/worker_%s' % (function_id, version, worker),
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worker
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)
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def delete_worker(function_id, worker, version=0):
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client = get_client()
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client.delete('%s_%s/worker_%s' % (function_id, version, worker))
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def get_workers(function_id, version=0):
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client = get_client()
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values = client.get_prefix("%s_%s/worker" % (function_id, version))
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workers = [w[0] for w in values]
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return workers
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def delete_function(function_id, version=0):
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client = get_client()
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client.delete_prefix("%s_%s" % (function_id, version))
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def create_service_url(function_id, url, version=0):
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client = get_client()
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client.create('%s_%s/service_url' % (function_id, version), url)
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def get_service_url(function_id, version=0):
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client = get_client()
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values = client.get('%s_%s/service_url' % (function_id, version))
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return None if not values else values[0]
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