66 lines
2.0 KiB
Python
66 lines
2.0 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
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# 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 logging
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import re
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import eventlet
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from ironicclient import client
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from ironicclient import exceptions
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from keystoneclient.v2_0 import client as keystone
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import six
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from ironic_discoverd import conf
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LOG = logging.getLogger('ironic_discoverd.utils')
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OS_ARGS = ('os_password', 'os_username', 'os_auth_url', 'os_tenant_name')
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RETRY_COUNT = 10
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RETRY_DELAY = 2
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class DiscoveryFailed(Exception):
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def __init__(self, msg, code=400):
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super(DiscoveryFailed, self).__init__(msg)
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self.http_code = code
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def get_client(): # pragma: no cover
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args = dict((k, conf.get('discoverd', k)) for k in OS_ARGS)
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return client.get_client(1, **args)
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def get_keystone(token): # pragma: no cover
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return keystone.Client(token=token, auth_url=conf.get('discoverd',
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'os_auth_url'))
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def is_valid_mac(address):
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m = "[0-9a-f]{2}(:[0-9a-f]{2}){5}$"
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return (isinstance(address, six.string_types)
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and re.match(m, address.lower()))
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def retry_on_conflict(call, *args, **kwargs):
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for i in range(RETRY_COUNT):
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try:
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return call(*args, **kwargs)
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except exceptions.Conflict as exc:
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LOG.warning('Conflict on calling %s: %s, retry attempt %d',
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getattr(call, '__name__', repr(call)), exc, i)
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if i == RETRY_COUNT - 1:
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raise
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eventlet.greenthread.sleep(RETRY_DELAY)
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raise RuntimeError('unreachable code') # pragma: no cover
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