def __init__(self, user_id, project_id, is_admin=None, read_deleted="no", roles=None, project_name=None, remote_address=None, timestamp=None, request_id=None, auth_token=None, overwrite=True, quota_class=None, service_catalog=None, **kwargs): """Initialize RequestContext. :param read_deleted: 'no' indicates deleted records are hidden, 'yes' indicates deleted records are visible, 'only' indicates that *only* deleted records are visible. :param overwrite: Set to False to ensure that the greenthread local copy of the index is not overwritten. :param kwargs: Extra arguments that might be present, but we ignore because they possibly came in from older rpc messages. """ if kwargs: LOG.warn(_('Arguments dropped when creating context: %s') % str(kwargs)) self.user_id = user_id self.project_id = project_id self.roles = roles or [] self.project_name = project_name self.is_admin = is_admin if self.is_admin is None: self.is_admin = policy.check_is_admin(self.roles) elif self.is_admin and 'admin' not in self.roles: self.roles.append('admin') self.read_deleted = read_deleted self.remote_address = remote_address if not timestamp: timestamp = timeutils.utcnow() if isinstance(timestamp, basestring): timestamp = timeutils.parse_strtime(timestamp) self.timestamp = timestamp if not request_id: request_id = generate_request_id() self.request_id = request_id self.auth_token = auth_token self.quota_class = quota_class if overwrite or not hasattr(local.store, 'context'): self.update_store() self.quota_committed = False if service_catalog: # Only include required parts of service_catalog self.service_catalog = [s for s in service_catalog if s.get('type') in ('compute',)] else: # if list is empty or none self.service_catalog = []
def service_is_up(service): """Check whether a service is up based on last heartbeat.""" last_heartbeat = service['updated_at'] or service['created_at'] # Timestamps in DB are UTC. elapsed = total_seconds(timeutils.utcnow() - last_heartbeat) return abs(elapsed) <= CONF.service_down_time
def last_completed_audit_period(unit=None): """This method gives you the most recently *completed* audit period. arguments: units: string, one of 'hour', 'day', 'month', 'year' Periods normally begin at the beginning (UTC) of the period unit (So a 'day' period begins at midnight UTC, a 'month' unit on the 1st, a 'year' on Jan, 1) unit string may be appended with an optional offset like so: 'day@18' This will begin the period at 18:00 UTC. 'month@15' starts a monthly period on the 15th, and year@3 begins a yearly one on March 1st. returns: 2 tuple of datetimes (begin, end) The begin timestamp of this audit period is the same as the end of the previous. """ if not unit: unit = CONF.volume_usage_audit_period offset = 0 if '@' in unit: unit, offset = unit.split("@", 1) offset = int(offset) rightnow = timeutils.utcnow() if unit not in ('month', 'day', 'year', 'hour'): raise ValueError('Time period must be hour, day, month or year') if unit == 'month': if offset == 0: offset = 1 end = datetime.datetime(day=offset, month=rightnow.month, year=rightnow.year) if end >= rightnow: year = rightnow.year if 1 >= rightnow.month: year -= 1 month = 12 + (rightnow.month - 1) else: month = rightnow.month - 1 end = datetime.datetime(day=offset, month=month, year=year) year = end.year if 1 >= end.month: year -= 1 month = 12 + (end.month - 1) else: month = end.month - 1 begin = datetime.datetime(day=offset, month=month, year=year) elif unit == 'year': if offset == 0: offset = 1 end = datetime.datetime(day=1, month=offset, year=rightnow.year) if end >= rightnow: end = datetime.datetime(day=1, month=offset, year=rightnow.year - 1) begin = datetime.datetime(day=1, month=offset, year=rightnow.year - 2) else: begin = datetime.datetime(day=1, month=offset, year=rightnow.year - 1) elif unit == 'day': end = datetime.datetime(hour=offset, day=rightnow.day, month=rightnow.month, year=rightnow.year) if end >= rightnow: end = end - datetime.timedelta(days=1) begin = end - datetime.timedelta(days=1) elif unit == 'hour': end = rightnow.replace(minute=offset, second=0, microsecond=0) if end >= rightnow: end = end - datetime.timedelta(hours=1) begin = end - datetime.timedelta(hours=1) return (begin, end)