195 lines
6.6 KiB
Python
195 lines
6.6 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 socket
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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 keystonemiddleware import auth_token
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from oslo_config import cfg
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import six
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from ironic_inspector.common.i18n import _, _LE, _LI, _LW
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CONF = cfg.CONF
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# See http://specs.openstack.org/openstack/ironic-specs/specs/kilo/new-ironic-state-machine.html # noqa
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VALID_STATES = {'enroll', 'manageable', 'inspecting', 'inspectfail'}
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LOG = logging.getLogger('ironic_inspector.utils')
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RETRY_COUNT = 12
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RETRY_DELAY = 5
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GREEN_POOL = None
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class Error(Exception):
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"""Inspector 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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class NotFoundInCacheError(Error):
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"""Exception when node was not found in cache during processing."""
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def __init__(self, msg, code=404):
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super(NotFoundInCacheError, self).__init__(msg, code)
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def spawn_n(*args, **kwargs):
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global GREEN_POOL
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if not GREEN_POOL:
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GREEN_POOL = eventlet.greenpool.GreenPool(CONF.max_concurrency)
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return GREEN_POOL.spawn_n(*args, **kwargs)
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def get_client(): # pragma: no cover
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"""Get Ironic client instance."""
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# NOTE: To support standalone ironic without keystone
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if CONF.ironic.auth_strategy == 'noauth':
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args = {'os_auth_token': 'noauth',
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'ironic_url': CONF.ironic.ironic_url}
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else:
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args = {'os_password': CONF.ironic.os_password,
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'os_username': CONF.ironic.os_username,
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'os_auth_url': CONF.ironic.os_auth_url,
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'os_tenant_name': CONF.ironic.os_tenant_name,
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'os_service_type': CONF.ironic.os_service_type,
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'os_endpoint_type': CONF.ironic.os_endpoint_type}
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return client.get_client(1, **args)
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def add_auth_middleware(app):
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"""Add authentication middleware to Flask application.
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:param app: application.
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"""
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auth_conf = dict(CONF.keystone_authtoken)
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# These items should only be used for accessing Ironic API.
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# For keystonemiddleware's authentication,
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# keystone_authtoken's items will be used and
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# these items will be unsupported.
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# [ironic]/os_password
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# [ironic]/os_username
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# [ironic]/os_auth_url
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# [ironic]/os_tenant_name
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auth_conf.update({'admin_password':
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CONF.ironic.os_password or
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CONF.keystone_authtoken.admin_password,
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'admin_user':
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CONF.ironic.os_username or
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CONF.keystone_authtoken.admin_user,
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'auth_uri':
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CONF.ironic.os_auth_url or
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CONF.keystone_authtoken.auth_uri,
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'admin_tenant_name':
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CONF.ironic.os_tenant_name or
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CONF.keystone_authtoken.admin_tenant_name,
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'identity_uri':
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CONF.ironic.identity_uri or
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CONF.keystone_authtoken.identity_uri})
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auth_conf['delay_auth_decision'] = True
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app.wsgi_app = auth_token.AuthProtocol(app.wsgi_app, auth_conf)
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def check_auth(request):
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"""Check authentication on request.
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:param request: Flask request
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:raises: utils.Error if access is denied
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"""
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if get_auth_strategy() == 'noauth':
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return
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if request.headers.get('X-Identity-Status').lower() == 'invalid':
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raise Error(_('Authentication required'), code=401)
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roles = (request.headers.get('X-Roles') or '').split(',')
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if 'admin' not in roles:
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LOG.error(_LE('Role "admin" not in user role list %s'), roles)
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raise Error(_('Access denied'), code=403)
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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_auth_strategy():
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if CONF.authenticate is not None:
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return 'keystone' if CONF.authenticate else 'noauth'
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return CONF.auth_strategy
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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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try:
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ip = socket.gethostbyname(value)
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return ip
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except socket.gaierror:
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msg = ('Failed to resolve the hostname (%s) for node %s')
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raise Error(msg % (value, node.uuid))
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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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def check_provision_state(node):
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if not node.maintenance:
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provision_state = node.provision_state
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if provision_state and provision_state.lower() not in VALID_STATES:
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msg = _('Refusing to introspect node %(node)s with provision state'
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' "%(state)s" and maintenance mode off')
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raise Error(msg % {'node': node.uuid, 'state': provision_state})
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else:
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LOG.info(_LI('Node %s is in maintenance mode, skipping'
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' provision states check'), node.uuid)
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def capabilities_to_dict(caps):
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"""Convert the Node's capabilities into a dictionary."""
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if not caps:
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return {}
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return dict([key.split(':', 1) for key in caps.split(',')])
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def dict_to_capabilities(caps_dict):
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"""Convert a dictionary into a string with the capabilities syntax."""
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return ','.join(["%s:%s" % (key, value)
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for key, value in caps_dict.items()])
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