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# Copyright (c) 2016 OpenStack Foundation
# All Rights Reserved.
#
# 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 oslo_log import log
from oslo_serialization import jsonutils
from neutron._i18n import _
from neutron._i18n import _LE
from neutron._i18n import _LI
from neutron.agent.common import utils
from neutron.common import config
LOG = log.getLogger(__name__)
class SetOvsHostconfigs(object):
# Refer below for ovs ext-id strings
# https://review.openstack.org/#/c/309630/
extid_str = 'external_ids:{}={}'
odl_os_hconf_str = 'odl_os_hostconfig_config_{}'
odl_os_hostid_str = 'odl_os_hostconfig_hostid'
odl_os_hosttype_str = 'odl_os_hostconfig_hosttype'
# TODO(mzmalick): use neutron.agent.ovsdb instead of subprocess.Popen
ovs_cmd_get_uuid = ['ovs-vsctl', 'get', 'Open_vSwitch', '.', '_uuid']
ovs_cmd_set_extid = ['ovs-vsctl', 'set', 'Open_vSwitch', '', '']
UUID = 3
EXTID = 4
def __init__(self):
self.ovs_uuid = self.get_ovs_uuid()
def ovs_exec_cmd(self, cmd):
LOG.info(_LI("SET-HOSTCONFIGS: Executing cmd: %s"), ' '.join(cmd))
return utils.execute(cmd, return_stderr=True, run_as_root=True)
def get_ovs_uuid(self):
return self.ovs_exec_cmd(self.ovs_cmd_get_uuid)[0].strip()
def set_extid_hostname(self, hname):
self.ovs_cmd_set_extid[self.UUID] = self.ovs_uuid
self.ovs_cmd_set_extid[self.EXTID] = self.extid_str.format(
self.odl_os_hostid_str, hname)
return self.ovs_exec_cmd(self.ovs_cmd_set_extid)
def set_extid_hosttype(self, htype):
self.ovs_cmd_set_extid[self.UUID] = self.ovs_uuid
self.ovs_cmd_set_extid[self.EXTID] = self.extid_str.format(
self.odl_os_hosttype_str, htype)
return self.ovs_exec_cmd(self.ovs_cmd_set_extid)
def set_extid_hostconfig(self, htype, hconfig):
ext_htype = self.odl_os_hconf_str.format(
htype.lower().replace(' ', '_'))
self.ovs_cmd_set_extid[self.UUID] = self.ovs_uuid
self.ovs_cmd_set_extid[self.EXTID] = self.extid_str.format(
ext_htype, jsonutils.dumps(hconfig))
return self.ovs_exec_cmd(self.ovs_cmd_set_extid)
def set_ovs_extid_hostconfigs(self, conf):
if not conf.ovs_hostconfigs:
LOG.error(_LE("ovs_hostconfigs argument needed!"))
return
json_str = cfg.CONF.ovs_hostconfigs
json_str.replace("\'", "\"")
LOG.debug("SET-HOSTCONFIGS: JSON String %s", json_str)
self.set_extid_hostname(cfg.CONF.host)
htype_config = jsonutils.loads(json_str)
for htype in htype_config.keys():
self.set_extid_hostconfig(htype, htype_config[htype])
def setup_conf():
"""setup cmdline options."""
cli_opts = [
cfg.StrOpt('ovs_hostconfigs', help=_(
"OVS hostconfiguration for OpenDaylight "
"as a JSON string"))
]
conf = cfg.CONF
conf.register_cli_opts(cli_opts)
conf.import_opt('host', 'neutron.common.config')
conf()
return conf
def main():
conf = setup_conf()
config.setup_logging()
SetOvsHostconfigs().set_ovs_extid_hostconfigs(conf)
#
# command line example (run without line breaks):
#
# set_ovs_hostconfigs.py --ovs_hostconfigs='{"ODL L2": {
# "supported_vnic_types":[{"vnic_type":"normal", "vif_type":"ovs",
# "vif_details":{}}], "allowed_network_types":["local","vlan",
# "vxlan","gre"], "bridge_mappings":{"physnet1":"br-ex"}},
# "ODL L3": {}}' --debug
#
if __name__ == '__main__':
main()
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