Source code for ironic_inspector.utils

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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import datetime
import logging as pylog

import futurist
from keystonemiddleware import auth_token
from oslo_config import cfg
from oslo_log import log
from oslo_middleware import cors as cors_middleware
import pytz

from ironicclient.v1 import node
from ironic_inspector.common.i18n import _, _LE, _LI
from ironic_inspector import conf  # noqa



[docs]def get_ipmi_address_from_data(introspection_data): try: return introspection_data['inventory']['bmc_address'] except KeyError: return introspection_data.get('ipmi_address')
[docs]def get_pxe_mac(introspection_data): pxe_mac = introspection_data.get('boot_interface') if pxe_mac and '-' in pxe_mac: # pxelinux format: 01-aa-bb-cc-dd-ee-ff pxe_mac = pxe_mac.split('-', 1)[1] pxe_mac = pxe_mac.replace('-', ':').lower() return pxe_mac
[docs]def processing_logger_prefix(data=None, node_info=None): """Calculate prefix for logging. Tries to use: * node UUID, node._state * node PXE MAC, * node BMC address :param data: introspection data :param node_info: NodeInfo or ironic node object :return: logging prefix as a string """ # TODO(dtantsur): try to get MAC and BMC address for node_info as well parts = [] data = data or {} if node_info is not None: if isinstance(node_info, node.Node): parts.append(str(node_info.uuid)) else: parts.append(str(node_info)) pxe_mac = get_pxe_mac(data) if pxe_mac: parts.append('MAC %s' % pxe_mac) if CONF.processing.log_bmc_address: bmc_address = get_ipmi_address_from_data(data) if data else None if bmc_address: parts.append('BMC %s' % bmc_address) if parts: return _('[node: %s]') % ' '.join(parts) else: return _('[unidentified node]')
[docs]class ProcessingLoggerAdapter(log.KeywordArgumentAdapter):
[docs] def process(self, msg, kwargs): if 'data' not in kwargs and 'node_info' not in kwargs: return super(ProcessingLoggerAdapter, self).process(msg, kwargs) data = kwargs.get('data', {}) node_info = kwargs.get('node_info') prefix = processing_logger_prefix(data, node_info) msg, kwargs = super(ProcessingLoggerAdapter, self).process(msg, kwargs) return ('%s %s' % (prefix, msg)), kwargs
[docs]def getProcessingLogger(name): # We can't use getLogger from oslo_log, as it's an adapter itself logger = pylog.getLogger(name) return ProcessingLoggerAdapter(logger, {})
LOG = getProcessingLogger(__name__)
[docs]class Error(Exception): """Inspector exception.""" def __init__(self, msg, code=400, log_level='error', **kwargs): super(Error, self).__init__(msg) getattr(LOG, log_level)(msg, **kwargs) self.http_code = code
[docs]class NotFoundInCacheError(Error): """Exception when node was not found in cache during processing.""" def __init__(self, msg, code=404, **kwargs): super(NotFoundInCacheError, self).__init__(msg, code, log_level='info', **kwargs)
[docs]class NodeStateRaceCondition(Error): """State mismatch between the DB and a node_info.""" def __init__(self, *args, **kwargs): message = _('Node state mismatch detected between the DB and the ' 'cached node_info object') kwargs.setdefault('code', 500) super(NodeStateRaceCondition, self).__init__(message, *args, **kwargs)
[docs]class NodeStateInvalidEvent(Error): """Invalid event attempted."""
[docs]def executor(): """Return the current futures executor.""" global _EXECUTOR if _EXECUTOR is None: _EXECUTOR = futurist.GreenThreadPoolExecutor( max_workers=CONF.max_concurrency) return _EXECUTOR
[docs]def add_auth_middleware(app): """Add authentication middleware to Flask application. :param app: application. """ auth_conf = dict(CONF.keystone_authtoken) auth_conf['delay_auth_decision'] = True app.wsgi_app = auth_token.AuthProtocol(app.wsgi_app, auth_conf)
[docs]def add_cors_middleware(app): """Create a CORS wrapper Attach ironic-inspector-specific defaults that must be included in all CORS responses. :param app: application """ app.wsgi_app = cors_middleware.CORS(app.wsgi_app, CONF)
[docs]def check_auth(request): """Check authentication on request. :param request: Flask request :raises: utils.Error if access is denied """ if CONF.auth_strategy == 'noauth': return if request.headers.get('X-Identity-Status').lower() == 'invalid': raise Error(_('Authentication required'), code=401) roles = (request.headers.get('X-Roles') or '').split(',') if 'admin' not in roles: LOG.error(_LE('Role "admin" not in user role list %s'), roles) raise Error(_('Access denied'), code=403)
[docs]def get_valid_macs(data): """Get a list of valid MAC's from the introspection data.""" return [m['mac'] for m in data.get('all_interfaces', {}).values() if m.get('mac')]
_INVENTORY_MANDATORY_KEYS = ('memory', 'cpu', 'interfaces')
[docs]def get_inventory(data, node_info=None): """Get and validate the hardware inventory from introspection data.""" inventory = data.get('inventory') # TODO(dtantsur): validate inventory using JSON schema if not inventory: raise Error(_('Hardware inventory is empty or missing'), data=data, node_info=node_info) for key in _INVENTORY_MANDATORY_KEYS: if not inventory.get(key): raise Error(_('Invalid hardware inventory: %s key is missing ' 'or empty') % key, data=data, node_info=node_info) if not inventory.get('disks'):'No disks were detected in the inventory, assuming this ' 'is a disk-less node'), data=data, node_info=node_info) # Make sure the code iterating over it does not fail with a TypeError inventory['disks'] = [] return inventory
[docs]def iso_timestamp(timestamp=None, tz=pytz.timezone('utc')): """Return an ISO8601-formatted timestamp (tz: UTC) or None. :param timestamp: such as time.time() or None :param tz: timezone :returns: an ISO8601-formatted timestamp, or None """ if timestamp is None: return None date = datetime.datetime.fromtimestamp(timestamp, tz=tz) return date.isoformat()