49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
# Copyright 2015 Hewlett-Packard Development Company, L.P.
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#
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# Author: Endre Karlson <endre.karlson@hp.com>
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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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import os
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import dns.resolver
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from oslo_config import cfg
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from functionaltests.common import utils
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def query(name, type_, server="127.0.0.1", port=53, timeout=3):
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resolver = dns.resolver.Resolver()
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resolver.nameservers = [server]
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resolver.port = int(port)
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resolver.timeout = timeout
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try:
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return resolver.query(name, type_)
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except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
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return False
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def query_servers(name, type_, servers=None, timeout=3):
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servers = servers or os.environ.get("DESIGNATE_SERVERS",
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cfg.CONF.designate.nameservers)
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results = []
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for srv in servers:
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server, port = srv.split(":")
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port = port or 53
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result = utils.wait_for_condition(
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lambda: query(name, type_, server, port))
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results.append(result)
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return results
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