95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
# Copyright 2015 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from fuelweb_test import logger
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def ovs_get_data(remote, table, columns=None):
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"""Get data from a specified OpenVSwitch table
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:param SSHClient remote: fuel-devops.helpers.helpers object
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:param str table: ovs table name (see `ovsdb-client list-tables`)
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:param list columns:
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list of strings to get specified columns. if None - all columns
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will be requested.
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:return dict: data from JSON object
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"""
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if columns:
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col = '--columns=' + ','.join(columns)
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else:
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col = ''
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cmd = ('ovs-vsctl --oneline --format=json {columns} list {table}'
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.format(columns=col, table=table))
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res = remote.check_call(cmd).stdout_json
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logger.debug("OVS output of the command '{0}': {1}".format(cmd, res))
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return res
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def ovs_decode_columns(ovs_data):
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"""Decode columns from OVS data format to a python dict
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:param str ovs_data: data from JSON object
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:return list: list of decoded dicts
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"""
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data = ovs_data['data']
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headings = ovs_data['headings']
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res = []
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for fields in data:
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res_fields = {}
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for i, field in enumerate(fields):
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if isinstance(field, list):
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if field[0] == 'map':
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d = {}
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for f in field[1]:
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d[f[0]] = f[1]
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res_fields[headings[i]] = d
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elif field[0] == 'uuid':
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res_fields[headings[i]] = {'uuid': field[1]}
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else:
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res_fields[headings[i]] = field
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else:
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res_fields[headings[i]] = field
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res.append(res_fields)
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return res
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def ovs_get_tag_by_port(remote, port):
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"""Get the tag used for OVS interface by Neutron port ID
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:param SSHClient remote: fuel-devops.helpers.helpers object
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:param str port: Neutron port ID
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:return str: tag number
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"""
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interfaces_raw = ovs_get_data(remote,
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table='Interface',
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columns=['external_ids', 'name'])
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interfaces = ovs_decode_columns(interfaces_raw)
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ports_ifaces = {x['external_ids']['iface-id']: x['name']
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for x in interfaces if 'iface-id' in x['external_ids']}
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logger.debug("OVS interfaces: {0}".format(ports_ifaces))
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if port not in ports_ifaces:
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raise ValueError("Neutron port {0} not found in OVS interfaces."
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.format(port))
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iface_id = ports_ifaces[port]
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ovs_port_raw = ovs_get_data(remote,
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table='Port {0}'.format(iface_id),
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columns=['tag'])
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ovs_port = ovs_decode_columns(ovs_port_raw)
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logger.debug("OVS tag for port {0}: {1}".format(iface_id, ovs_port))
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ovs_tag = ovs_port[0]['tag']
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return str(ovs_tag)
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