294ee65bd3
Add ability to failover a given host to a replication target provided, or chosen from amongst those configured. DocImpact Implements: blueprint netapp-cheesecake-replication-support Co-Authored-By: Clinton Knight <cknight@netapp.com> Change-Id: I87b92e76d0d5022e9be610b9e237b89417309c05
75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
# 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.
|
|
"""
|
|
Utilities for NetApp FAS drivers.
|
|
|
|
This module contains common utilities to be used by one or more
|
|
NetApp FAS drivers to achieve the desired functionality.
|
|
"""
|
|
|
|
from oslo_config import cfg
|
|
from oslo_log import log
|
|
|
|
from cinder import exception
|
|
from cinder.i18n import _
|
|
from cinder import utils
|
|
from cinder.volume import configuration
|
|
from cinder.volume import driver
|
|
from cinder.volume.drivers.netapp.dataontap.client import client_cmode
|
|
from cinder.volume.drivers.netapp import options as na_opts
|
|
|
|
LOG = log.getLogger(__name__)
|
|
CONF = cfg.CONF
|
|
|
|
|
|
def get_backend_configuration(backend_name):
|
|
"""Get a cDOT configuration object for a specific backend."""
|
|
|
|
config_stanzas = CONF.list_all_sections()
|
|
if backend_name not in config_stanzas:
|
|
msg = _("Could not find backend stanza %(backend_name)s in "
|
|
"configuration. Available stanzas are %(stanzas)s")
|
|
params = {
|
|
"stanzas": config_stanzas,
|
|
"backend_name": backend_name,
|
|
}
|
|
raise exception.ConfigNotFound(message=msg % params)
|
|
|
|
config = configuration.Configuration(driver.volume_opts,
|
|
config_group=backend_name)
|
|
config.append_config_values(na_opts.netapp_proxy_opts)
|
|
config.append_config_values(na_opts.netapp_connection_opts)
|
|
config.append_config_values(na_opts.netapp_transport_opts)
|
|
config.append_config_values(na_opts.netapp_basicauth_opts)
|
|
config.append_config_values(na_opts.netapp_provisioning_opts)
|
|
config.append_config_values(na_opts.netapp_cluster_opts)
|
|
config.append_config_values(na_opts.netapp_san_opts)
|
|
config.append_config_values(na_opts.netapp_replication_opts)
|
|
|
|
return config
|
|
|
|
|
|
def get_client_for_backend(backend_name, vserver_name=None):
|
|
"""Get a cDOT API client for a specific backend."""
|
|
|
|
config = get_backend_configuration(backend_name)
|
|
client = client_cmode.Client(
|
|
transport_type=config.netapp_transport_type,
|
|
username=config.netapp_login,
|
|
password=config.netapp_password,
|
|
hostname=config.netapp_server_hostname,
|
|
port=config.netapp_server_port,
|
|
vserver=vserver_name or config.netapp_vserver,
|
|
trace=utils.TRACE_API)
|
|
|
|
return client
|