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authorGeorge Paraskevopoulos <geopar@intracom-telecom.com>2016-12-12 14:49:51 +0200
committerGeorge Paraskevopoulos <geopar@intracom-telecom.com>2016-12-12 15:00:25 +0200
commit288b794d642462294d5b3c3465b1fa7273a009ca (patch)
tree8e7556e37d0a012b855e2695954e10b70d42cbe4
parent9d3211605b43daab86e30b2773c02209e5dd2d2d (diff)
Add ovs_logger module
JIRA: SFC-61 In SFC we have created a module to gather "ovs-vsctl show" and "ovs-ofctl dump-flows" information automatically. Releng is a more appropriate place for it, as it can be utilized by other projects to create artifacts with ovs logs when a testcase fails Change-Id: If6cf6a937532f7776f9b300ffdb2ab6c4fde82c8 Signed-off-by: George Paraskevopoulos <geopar@intracom-telecom.com>
-rw-r--r--opnfv/utils/ovs_logger.py118
1 files changed, 118 insertions, 0 deletions
diff --git a/opnfv/utils/ovs_logger.py b/opnfv/utils/ovs_logger.py
new file mode 100644
index 0000000..3159609
--- /dev/null
+++ b/opnfv/utils/ovs_logger.py
@@ -0,0 +1,118 @@
+##############################################################################
+# 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 opnfv.utils.OPNFVLogger as OPNFVLogger
+import os
+import time
+import shutil
+
+logger = OPNFVLogger.Logger('ovs_logger').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)