/usr/lib/python3/dist-packages/gnocchi/storage/swift.py is in python3-gnocchi 4.2.0-0ubuntu5.
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#
# Copyright © 2014-2015 eNovance
#
# 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, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_config import cfg
from gnocchi.common import swift
from gnocchi import storage
from gnocchi import utils
swclient = swift.swclient
swift_utils = swift.swift_utils
OPTS = [
cfg.StrOpt('swift_auth_version',
default='1',
help='Swift authentication version to user.'),
cfg.BoolOpt('swift_auth_insecure',
default=False,
help='If True, swiftclient won\'t check for a valid SSL '
'certificate when authenticating.'),
cfg.StrOpt('swift_url',
help='Swift URL. '
'If unset, it is obtained from the auth service.'),
cfg.StrOpt('swift_authurl',
default="http://localhost:8080/auth/v1.0",
help='Swift auth URL.'),
cfg.StrOpt('swift_preauthtoken',
secret=True,
help='Swift token to user to authenticate.'),
cfg.StrOpt('swift_cacert',
help='A string giving the CA certificate file to use in '
'SSL connections for verifying certs.'),
cfg.StrOpt('swift_region',
help='Swift region.'),
cfg.StrOpt('swift_user',
default="admin:admin",
help='Swift user.'),
cfg.StrOpt('swift_user_domain_name',
default='Default',
help='Swift user domain name.'),
cfg.StrOpt('swift_key',
secret=True,
default="admin",
help='Swift key/password.'),
cfg.StrOpt('swift_project_name',
help='Swift tenant name, only used in v2/v3 auth.',
deprecated_name="swift_tenant_name"),
cfg.StrOpt('swift_project_domain_name',
default='Default',
help='Swift project domain name.'),
cfg.StrOpt('swift_container_prefix',
default='gnocchi',
help='Prefix to namespace metric containers.'),
cfg.StrOpt('swift_endpoint_type',
default='publicURL',
help='Endpoint type to connect to Swift',),
cfg.StrOpt('swift_service_type',
default='object-store',
help='A string giving the service type of the swift service '
'to use. This setting is only used if '
'swift_auth_version is 2.'),
cfg.IntOpt('swift_timeout',
min=0,
default=300,
help='Connection timeout in seconds.'),
]
class SwiftStorage(storage.StorageDriver):
WRITE_FULL = True
def __init__(self, conf, coord=None):
super(SwiftStorage, self).__init__(conf, coord)
self.swift = swift.get_connection(conf)
self._container_prefix = conf.swift_container_prefix
def __str__(self):
return "%s: %s" % (self.__class__.__name__, self._container_prefix)
def _container_name(self, metric):
return '%s.%s' % (self._container_prefix, str(metric.id))
@staticmethod
def _object_name(split_key, aggregation, version=3):
name = '%s_%s_%s' % (
split_key, aggregation,
utils.timespan_total_seconds(split_key.sampling),
)
return name + '_v%s' % version if version else name
def _create_metric(self, metric):
# TODO(jd) A container per user in their account?
resp = {}
self.swift.put_container(self._container_name(metric),
response_dict=resp)
# put_container() should return 201 Created; if it returns 204, that
# means the metric was already created!
if resp['status'] == 204:
raise storage.MetricAlreadyExists(metric)
def _store_metric_measures(self, metric, key, aggregation,
data, offset=None, version=3):
self.swift.put_object(
self._container_name(metric),
self._object_name(key, aggregation, version),
data)
def _delete_metric_measures(self, metric, key, aggregation, version=3):
self.swift.delete_object(
self._container_name(metric),
self._object_name(key, aggregation, version))
def _delete_metric(self, metric):
container = self._container_name(metric)
try:
headers, files = self.swift.get_container(
container, full_listing=True)
except swclient.ClientException as e:
if e.http_status != 404:
# Maybe it never has been created (no measure)
raise
else:
swift.bulk_delete(self.swift, container, files)
try:
self.swift.delete_container(container)
except swclient.ClientException as e:
if e.http_status != 404:
# Deleted in the meantime? Whatever.
raise
def _get_measures_unbatched(self, metric, key, aggregation, version=3):
try:
headers, contents = self.swift.get_object(
self._container_name(metric), self._object_name(
key, aggregation, version))
except swclient.ClientException as e:
if e.http_status == 404:
try:
self.swift.head_container(self._container_name(metric))
except swclient.ClientException as e:
if e.http_status == 404:
raise storage.MetricDoesNotExist(metric)
raise
raise storage.AggregationDoesNotExist(
metric, aggregation, key.sampling)
raise
return contents
def _list_split_keys(self, metric, aggregation, granularity, version=3):
container = self._container_name(metric)
try:
headers, files = self.swift.get_container(
container, full_listing=True)
except swclient.ClientException as e:
if e.http_status == 404:
raise storage.MetricDoesNotExist(metric)
raise
keys = set()
granularity = str(utils.timespan_total_seconds(granularity))
for f in files:
try:
meta = f['name'].split('_')
if (aggregation == meta[1] and granularity == meta[2]
and self._version_check(f['name'], version)):
keys.add(meta[0])
except (ValueError, IndexError):
# Might be "none", or any other file. Be resilient.
continue
return keys
@staticmethod
def _build_unaggregated_timeserie_path(version):
return 'none' + ("_v%s" % version if version else "")
def _get_unaggregated_timeserie(self, metric, version=3):
try:
headers, contents = self.swift.get_object(
self._container_name(metric),
self._build_unaggregated_timeserie_path(version))
except swclient.ClientException as e:
if e.http_status == 404:
raise storage.MetricDoesNotExist(metric)
raise
return contents
def _store_unaggregated_timeserie(self, metric, data, version=3):
self.swift.put_object(self._container_name(metric),
self._build_unaggregated_timeserie_path(version),
data)
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