98 lines
3.2 KiB
Python
98 lines
3.2 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 import exceptions as keystone_exc
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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.common.i18n import _LW
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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 = 12
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RETRY_DELAY = 5
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class Error(Exception):
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"""Discoverd exception."""
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def __init__(self, msg, code=400):
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super(Error, self).__init__(msg)
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LOG.error(msg)
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self.http_code = code
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def get_client(): # pragma: no cover
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"""Get Ironic client instance."""
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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 check_is_admin(token):
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"""Check whether the token is from a user with the admin role.
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:param token: Keystone authentication token.
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:raises: keystoneclient.exceptions.Unauthorized if the user does not have
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the admin role in the tenant provided in the admin_tenant_name option.
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"""
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kc = keystone.Client(token=token,
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tenant_name=conf.get('discoverd',
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'admin_tenant_name'),
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auth_url=conf.get('discoverd', 'os_auth_url'))
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if "admin" not in [role.name
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for role in kc.roles.roles_for_user(
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kc.user_id,
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tenant=kc.tenant_id)]:
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raise keystone_exc.Unauthorized()
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def is_valid_mac(address):
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"""Return whether given value is a valid MAC."""
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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 get_ipmi_address(node):
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# All these are kind-of-ipmi
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for name in ('ipmi_address', 'ilo_address', 'drac_host'):
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value = node.driver_info.get(name)
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if value:
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return value
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def retry_on_conflict(call, *args, **kwargs):
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"""Wrapper to retry 409 CONFLICT exceptions."""
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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(_LW('Conflict on calling %(call)s: %(exc)s,'
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' retry attempt %(count)d') %
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{'call': getattr(call, '__name__', repr(call)),
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'exc': exc,
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'count': i + 1})
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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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