diff options
| -rw-r--r-- | opnfv/utils/ovs_logger.py | 118 |
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) |