aboutsummaryrefslogtreecommitdiffstats
path: root/tests/functest/odl-sfc/ovs_utils.py
blob: 48dfd6201dddcbd45f6e4b041211e66f737eb6c7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
##############################################################################
# Copyright (c) 2015 Ericsson AB and others.
# Author: George Paraskevopoulos (geopar@intracom-telecom.com)
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

import functest.utils.functest_logger as rl
import os
import time
import shutil
import re

logger = rl.Logger('ovs_utils').getLogger()


class OVSLogger(object):
    def __init__(self, basedir, ft_resdir):
        self.ovs_dir = basedir
        self.ft_resdir = ft_resdir
        self.__mkdir_p(self.ovs_dir)
        self.__mkdir_p(self.ft_resdir)

    def __mkdir_p(self, dirpath):
        if not os.path.exists(dirpath):
            os.makedirs(dirpath)

    def __ssh_host(self, ssh_conn, host_prefix='10.20.0'):
        try:
            _, stdout, _ = ssh_conn.exec_command('hostname -I')
            hosts = stdout.readline().strip().split(' ')
            found_host = [h for h in hosts if h.startswith(host_prefix)][0]
            return found_host
        except Exception, e:
            logger.error(e)

    def __dump_to_file(self, operation, host, text, timestamp=None):
        ts = (timestamp if timestamp is not None
              else time.strftime("%Y%m%d-%H%M%S"))
        dumpdir = os.path.join(self.ovs_dir, ts)
        self.__mkdir_p(dumpdir)
        fname = '{0}_{1}'.format(operation, host)
        with open(os.path.join(dumpdir, fname), 'w') as f:
            f.write(text)

    def __remote_cmd(self, ssh_conn, cmd):
        try:
            _, stdout, stderr = ssh_conn.exec_command(cmd)
            errors = stderr.readlines()
            if len(errors) > 0:
                host = self.__ssh_host(ssh_conn)
                logger.error(''.join(errors))
                raise Exception('Could not execute {0} in {1}'
                                .format(cmd, host))
            output = ''.join(stdout.readlines())
            return output
        except Exception, e:
            logger.error('[__remote_command(ssh_client, {0})]: {1}'
                         .format(cmd, e))
            return None

    def create_artifact_archive(self):
        shutil.make_archive(self.ovs_dir,
                            'zip',
                            root_dir=os.path.dirname(self.ovs_dir),
                            base_dir=self.ovs_dir)
        shutil.copy2('{0}.zip'.format(self.ovs_dir), self.ft_resdir)

    def ofctl_dump_flows(self, ssh_conn, br='br-int',
                         choose_table=None, timestamp=None):
        try:
            cmd = 'ovs-ofctl -OOpenFlow13 dump-flows {0}'.format(br)
            if choose_table is not None:
                cmd = '{0} table={1}'.format(cmd, choose_table)
            output = self.__remote_cmd(ssh_conn, cmd)
            operation = 'ofctl_dump_flows'
            host = self.__ssh_host(ssh_conn)
            self.__dump_to_file(operation, host, output, timestamp=timestamp)
            return output
        except Exception, e:
            logger.error('[ofctl_dump_flows(ssh_client, {0}, {1})]: {2}'
                         .format(br, choose_table, e))
            return None

    def vsctl_show(self, ssh_conn, timestamp=None):
        try:
            cmd = 'ovs-vsctl show'
            output = self.__remote_cmd(ssh_conn, cmd)
            operation = 'vsctl_show'
            host = self.__ssh_host(ssh_conn)
            self.__dump_to_file(operation, host, output, timestamp=timestamp)
            return output
        except Exception, e:
            logger.error('[vsctl_show(ssh_client)]: {0}'.format(e))
            return None

    def dump_ovs_logs(self, controller_clients, compute_clients,
                      related_error=None, timestamp=None):
        if timestamp is None:
            timestamp = time.strftime("%Y%m%d-%H%M%S")

        for controller_client in controller_clients:
            self.ofctl_dump_flows(controller_client,
                                  timestamp=timestamp)
            self.vsctl_show(controller_client,
                            timestamp=timestamp)

        for compute_client in compute_clients:
            self.ofctl_dump_flows(compute_client,
                                  timestamp=timestamp)
            self.vsctl_show(compute_client,
                            timestamp=timestamp)

        if related_error is not None:
            dumpdir = os.path.join(self.ovs_dir, timestamp)
            with open(os.path.join(dumpdir, 'error'), 'w') as f:
                f.write(related_error)

    def ofctl_time_counter(self, ssh_conn):
        try:
            # We get the flows from table 11
            table = 11
            br = "br-int"
            output = self.ofctl_dump_flows(ssh_conn, br, table)
            pattern = "NXM_NX_NSP"
            rsps = []
            lines = output.split(",")
            for line in lines:
                is_there = re.findall(pattern, line)
                if is_there:
                    value = line.split(":")[1].split("-")[0]
                    rsps.append(value)
            return rsps
        except Exception, e:
            logger.error('Error when countering %s' % e)
            return None