def main():
"""Create a CLI parser for the SFC Agent and execute appropriate actions"""
#: default values
agent_port = 5000
odl_auto_sff = False
ovs_local_sff_cp_ip = '0.0.0.0'
debug_level = True
#: setup parser -----------------------------------------------------------
parser = argparse.ArgumentParser(description='SFC Agent',
usage=("\npython3.5 sfc_agent "
"--rest "
"--nfq-class "
"--odl-get-sff "
"--debug-level "
"--NSH-type"
"--legacy-vxlan"
"--ovs-sff-cp-ip <local SFF IP dataplane address> "
"--odl-ip-port=<ODL REST IP:port> --sff-name=<my SFF name>"
"--sff-os=<agent os>"
" --agent-port=<agent listening port>"
"\n\nnote:\n"
"root privileges are required "
"if `--nfq-class` flag is used"))
parser.add_argument('--odl-get-sff', action='store_true',
help='Get SFF from ODL')
parser.add_argument('--auto-sff-name', action='store_true',
help='Automatically get SFF name')
parser.add_argument('--nfq-class', action='store_true',
help='Flag to use NFQ Classifier')
parser.add_argument('-r', '--rest', action='store_true',
help='Flag to use REST')
parser.add_argument('--sff-name',
help='Set SFF name')
parser.add_argument('--debug-level', action='store_true',
help='Set logging level to DEBUG')
parser.add_argument('--odl-ip-port',
help='Set ODL IP and port in form <IP>:<PORT>. '
'Default is %s' % sfc_globals.get_odl_locator())
parser.add_argument('--NSH-type',
choices=['1', '3'],
help='Set NSH type '
'Default is %s' % sfc_globals.get_nsh_type())
parser.add_argument('--legacy-vxlan', action='store_true',
help='Using Vxlan header instead of Vxlan-gpe')
parser.add_argument('--ovs-sff-cp-ip',
help='Set local SFF Open vSwitch IP. '
'Default is %s' % ovs_local_sff_cp_ip)
parser.add_argument('--sff-os',
choices=['XE', 'XR', 'OVS'],
help='Set SFF switch OS')
parser.add_argument('--agent-port', type=int,
help='Set SFC Agent port. Default is %s' % agent_port)
#: parse CMD arguments ----------------------------------------------------
args = parser.parse_args()
if args.odl_ip_port is not None:
sfc_globals.set_odl_locator(args.odl_ip_port)
logger.info('ODL locator: %s', sfc_globals.get_odl_locator())
if args.agent_port is not None:
agent_port = args.agent_port
if args.ovs_sff_cp_ip is not None:
ovs_local_sff_cp_ip = args.ovs_sff_cp_ip
if args.auto_sff_name:
odl_auto_sff = True
args.odl_get_sff = True
if args.sff_name is not None:
sfc_globals.set_my_sff_name(args.sff_name)
if args.NSH_type is not None:
sfc_globals.set_nsh_type(args.NSH_type)
if args.legacy_vxlan is not None:
sfc_globals.set_legacy_vxlan(True)
else:
sfc_globals.set_legacy_vxlan(False)
if args.debug_level is not None:
debug_level = args.debug_level
if args.sff_os is not None:
sff_os = args.sff_os
sfc_globals.set_sff_os(sff_os)
if sff_os not in sfc_globals.sff_os_set:
logger.error(sff_os + ' is an unsupported SFF switch OS')
sys.exit()
if sff_os == "OVS":
ovs_cli.init_ovs()
#: execute actions --------------------------------------------------------
try:
#if debug_level:
# logging.basicConfig(level=logging.DEBUG)
#else:
# logging.basicConfig(level=logging.INFO)
logging.basicConfig(level=logging.DEBUG)
logger.info("\n\n====== STARTING SFC AGENT ======")
logger.info("\n\nSFC Agent will listen to Opendaylight REST Messages and take any\n"
"appropriate action such as creating, deleting, updating SFs, SFFs,\n "
"or classifier. \n")
if args.odl_get_sff:
get_sffs_from_odl(sfc_globals.get_odl_locator())
if odl_auto_sff:
auto_sff_name()
if args.nfq_class:
classifier.start_classifier()
if args.rest:
app.run(port=agent_port,
host=ovs_local_sff_cp_ip,
debug=False,
use_reloader=False)
except KeyboardInterrupt:
pass
finally:
classifier.clear_classifier()
# not a great way how to exit, but it works and prevents the
# `Exception ignored in: ...` message from beeing displayed
os.kill(os.getpid(), signal.SIGTERM)
def main():
"""Create a CLI parser for the SFC Agent and execute appropriate actions"""
#: default values
agent_port = 5000
odl_auto_sff = False
ovs_local_sff_cp_ip = '0.0.0.0'
debug_level = False
#: setup parser -----------------------------------------------------------
parser = argparse.ArgumentParser(
description='SFC Agent',
usage=("\npython3.5 sfc_agent "
"--rest "
"--nfq-class "
"--odl-get-sff "
"--debug-level "
"--NSH-type"
"--legacy-vxlan"
"--ovs-sff-cp-ip <local SFF IP dataplane address> "
"--odl-ip-port=<ODL REST IP:port> --sff-name=<my SFF name>"
"--sff-os=<agent os>"
" --agent-port=<agent listening port>"
"\n\nnote:\n"
"root privileges are required "
"if `--nfq-class` flag is used"))
parser.add_argument('--odl-get-sff',
action='store_true',
help='Get SFF from ODL')
parser.add_argument('--auto-sff-name',
action='store_true',
help='Automatically get SFF name')
parser.add_argument('--nfq-class',
action='store_true',
help='Flag to use NFQ Classifier')
parser.add_argument('-r',
'--rest',
action='store_true',
help='Flag to use REST')
parser.add_argument('--sff-name', help='Set SFF name')
parser.add_argument('--debug-level',
action='store_true',
help='Set logging level to DEBUG')
parser.add_argument('--odl-ip-port',
help='Set ODL IP and port in form <IP>:<PORT>. '
'Default is %s' % sfc_globals.get_odl_locator())
parser.add_argument('--NSH-type',
choices=['1', '3'],
help='Set NSH type '
'Default is %s' % sfc_globals.get_nsh_type())
parser.add_argument('--legacy-vxlan',
action='store_true',
help='Using Vxlan header instead of Vxlan-gpe')
parser.add_argument('--ovs-sff-cp-ip',
help='Set local SFF Open vSwitch IP. '
'Default is %s' % ovs_local_sff_cp_ip)
parser.add_argument('--sff-os',
choices=['XE', 'XR', 'OVS'],
help='Set SFF switch OS')
parser.add_argument('--agent-port',
type=int,
help='Set SFC Agent port. Default is %s' % agent_port)
#: parse CMD arguments ----------------------------------------------------
args = parser.parse_args()
if args.odl_ip_port is not None:
sfc_globals.set_odl_locator(args.odl_ip_port)
logger.info('ODL locator: %s', sfc_globals.get_odl_locator())
if args.agent_port is not None:
agent_port = args.agent_port
if args.ovs_sff_cp_ip is not None:
ovs_local_sff_cp_ip = args.ovs_sff_cp_ip
if args.auto_sff_name:
odl_auto_sff = True
args.odl_get_sff = True
if args.sff_name is not None:
sfc_globals.set_my_sff_name(args.sff_name)
if args.NSH_type is not None:
sfc_globals.set_nsh_type(args.NSH_type)
if args.legacy_vxlan is not None:
sfc_globals.set_legacy_vxlan(True)
else:
sfc_globals.set_legacy_vxlan(False)
if args.debug_level is not None:
debug_level = args.debug_level
if args.sff_os is not None:
sff_os = args.sff_os
sfc_globals.set_sff_os(sff_os)
if sff_os not in sfc_globals.sff_os_set:
logger.error(sff_os + ' is an unsupported SFF switch OS')
sys.exit()
if sff_os == "OVS":
ovs_cli.init_ovs()
#: execute actions --------------------------------------------------------
try:
if debug_level:
logging.basicConfig(level=logging.DEBUG)
else:
logging.basicConfig(level=logging.INFO)
logger.info("\n\n====== STARTING SFC AGENT ======")
logger.info(
"\n\nSFC Agent will listen to Opendaylight REST Messages and take any\n"
"appropriate action such as creating, deleting, updating SFs, SFFs,\n "
"or classifier. \n")
if args.odl_get_sff:
get_sffs_from_odl(sfc_globals.get_odl_locator())
if odl_auto_sff:
auto_sff_name()
if args.nfq_class:
classifier.start_classifier()
if args.rest:
app.run(port=agent_port,
host=ovs_local_sff_cp_ip,
debug=False,
use_reloader=False)
except KeyboardInterrupt:
pass
finally:
classifier.clear_classifier()
# not a great way how to exit, but it works and prevents the
# `Exception ignored in: ...` message from beeing displayed
os.kill(os.getpid(), signal.SIGTERM)