# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
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# implied.
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# limitations under the License.
# Mostly copied from ironic/common/swift.py
import json
from oslo_config import cfg
from swiftclient import client as swift_client
from swiftclient import exceptions as swift_exceptions
from ironic_inspector.common.i18n import _
from ironic_inspector.common import keystone
from ironic_inspector import utils
CONF = cfg.CONF
SWIFT_GROUP = 'swift'
SWIFT_OPTS = [
cfg.IntOpt('max_retries',
default=2,
help=_('Maximum number of times to retry a Swift request, '
'before failing.')),
cfg.IntOpt('delete_after',
default=0,
help=_('Number of seconds that the Swift object will last '
'before being deleted. (set to 0 to never delete the '
'object).')),
cfg.StrOpt('container',
default='ironic-inspector',
help=_('Default Swift container to use when creating '
'objects.')),
cfg.StrOpt('os_service_type',
default='object-store',
help=_('Swift service type.')),
cfg.StrOpt('os_endpoint_type',
default='internalURL',
help=_('Swift endpoint type.')),
cfg.StrOpt('os_region',
help=_('Keystone region to get endpoint for.')),
]
CONF.register_opts(SWIFT_OPTS, group=SWIFT_GROUP)
keystone.register_auth_opts(SWIFT_GROUP)
OBJECT_NAME_PREFIX = 'inspector_data'
SWIFT_SESSION = None
[docs]def reset_swift_session():
"""Reset the global session variable.
Mostly useful for unit tests.
"""
global SWIFT_SESSION
SWIFT_SESSION = None
[docs]class SwiftAPI(object):
"""API for communicating with Swift."""
def __init__(self):
"""Constructor for creating a SwiftAPI object.
Authentification is loaded from config file.
"""
global SWIFT_SESSION
if not SWIFT_SESSION:
SWIFT_SESSION = keystone.get_session(SWIFT_GROUP)
self.connection = swift_client.Connection(session=SWIFT_SESSION)
[docs] def create_object(self, object, data, container=CONF.swift.container,
headers=None):
"""Uploads a given string to Swift.
:param object: The name of the object in Swift
:param data: string data to put in the object
:param container: The name of the container for the object.
:param headers: the headers for the object to pass to Swift
:returns: The Swift UUID of the object
:raises: utils.Error, if any operation with Swift fails.
"""
try:
self.connection.put_container(container)
except swift_exceptions.ClientException as e:
err_msg = (_('Swift failed to create container %(container)s. '
'Error was: %(error)s') %
{'container': container, 'error': e})
raise utils.Error(err_msg)
if CONF.swift.delete_after > 0:
headers = headers or {}
headers['X-Delete-After'] = CONF.swift.delete_after
try:
obj_uuid = self.connection.put_object(container,
object,
data,
headers=headers)
except swift_exceptions.ClientException as e:
err_msg = (_('Swift failed to create object %(object)s in '
'container %(container)s. Error was: %(error)s') %
{'object': object, 'container': container, 'error': e})
raise utils.Error(err_msg)
return obj_uuid
[docs] def get_object(self, object, container=CONF.swift.container):
"""Downloads a given object from Swift.
:param object: The name of the object in Swift
:param container: The name of the container for the object.
:returns: Swift object
:raises: utils.Error, if the Swift operation fails.
"""
try:
headers, obj = self.connection.get_object(container, object)
except swift_exceptions.ClientException as e:
err_msg = (_('Swift failed to get object %(object)s in '
'container %(container)s. Error was: %(error)s') %
{'object': object, 'container': container, 'error': e})
raise utils.Error(err_msg)
return obj
[docs]def store_introspection_data(data, uuid, suffix=None):
"""Uploads introspection data to Swift.
:param data: data to store in Swift
:param uuid: UUID of the Ironic node that the data came from
:param suffix: optional suffix to add to the underlying swift
object name
:returns: name of the Swift object that the data is stored in
"""
swift_api = SwiftAPI()
swift_object_name = '%s-%s' % (OBJECT_NAME_PREFIX, uuid)
if suffix is not None:
swift_object_name = '%s-%s' % (swift_object_name, suffix)
swift_api.create_object(swift_object_name, json.dumps(data))
return swift_object_name
[docs]def get_introspection_data(uuid, suffix=None):
"""Downloads introspection data from Swift.
:param uuid: UUID of the Ironic node that the data came from
:param suffix: optional suffix to add to the underlying swift
object name
:returns: Swift object with the introspection data
"""
swift_api = SwiftAPI()
swift_object_name = '%s-%s' % (OBJECT_NAME_PREFIX, uuid)
if suffix is not None:
swift_object_name = '%s-%s' % (swift_object_name, suffix)
return swift_api.get_object(swift_object_name)
[docs]def list_opts():
return keystone.add_auth_options(SWIFT_OPTS, SWIFT_GROUP)