def main(argv=sys.argv, main_logger=None):
opts = parse_opts(argv)
if not main_logger:
main_logger = common.configure_logger(log_file=True)
common.logger_level(main_logger, opts.verbose, opts.debug)
if opts.numvfs:
if re.match(r"^\w+:\d+$", opts.numvfs):
device_name, numvfs = opts.numvfs.split(':')
set_numvfs(device_name, int(numvfs))
else:
main_logger.error(f"Invalid arguments for --numvfs {opts.numvfs}")
return 1
else:
# Configure the PF's
configure_sriov_pf()
# Configure the VFs
configure_sriov_vf()
def main(argv=sys.argv, main_logger=None):
opts = parse_opts(argv)
if not main_logger:
main_logger = common.configure_logger(log_file=not opts.noop)
common.logger_level(main_logger, opts.verbose, opts.debug)
main_logger.info(f"Using config file at: {opts.config_file}")
iface_array = []
configure_sriov = False
sriovpf_member_of_bond_ovs_port_list = []
provider = None
if opts.provider:
if opts.provider == 'ifcfg':
provider = impl_ifcfg.IfcfgNetConfig(noop=opts.noop,
root_dir=opts.root_dir)
elif opts.provider == 'eni':
provider = impl_eni.ENINetConfig(noop=opts.noop,
root_dir=opts.root_dir)
elif opts.provider == 'iproute':
provider = impl_iproute.IPRouteNetConfig(noop=opts.noop,
root_dir=opts.root_dir)
else:
main_logger.error("Invalid provider specified.")
return 1
else:
if os.path.exists('%s/etc/sysconfig/network-scripts/' % opts.root_dir):
provider = impl_ifcfg.IfcfgNetConfig(noop=opts.noop,
root_dir=opts.root_dir)
elif os.path.exists('%s/etc/network/' % opts.root_dir):
provider = impl_eni.ENINetConfig(noop=opts.noop,
root_dir=opts.root_dir)
else:
main_logger.error("Unable to set provider for this operating "
"system.")
return 1
# Read the interface mapping file, if it exists
# This allows you to override the default network naming abstraction
# mappings by specifying a specific nicN->name or nicN->MAC mapping
if os.path.exists(opts.mapping_file):
main_logger.info(f"Using mapping file at: {opts.mapping_file}")
with open(opts.mapping_file) as cf:
iface_map = yaml.safe_load(cf.read())
iface_mapping = iface_map.get("interface_mapping")
main_logger.debug(f"interface_mapping: {iface_mapping}")
persist_mapping = opts.persist_mapping
main_logger.debug(f"persist_mapping: {persist_mapping}")
else:
main_logger.info("Not using any mapping file.")
iface_mapping = None
persist_mapping = False
# If --interfaces is specified, either return the real name of the
# interfaces specified, or return the map of all nic abstractions/names.
if opts.interfaces is not None:
reported_nics = {}
mapped_nics = objects.mapped_nics(iface_mapping)
retval = 0
if len(opts.interfaces) > 0:
for requested_nic in opts.interfaces:
found = False
# Check to see if requested iface is a mapped NIC name.
if requested_nic in mapped_nics:
reported_nics[requested_nic] = mapped_nics[requested_nic]
found = True
# Check to see if the requested iface is a real NIC name
if requested_nic in mapped_nics.values():
if found is True: # Name matches alias and real NIC
# (return the mapped NIC, but warn of overlap).
main_logger.warning(f"{requested_nic} overlaps with "
"real NIC name.")
else:
reported_nics[requested_nic] = requested_nic
found = True
if not found:
retval = 1
if reported_nics:
main_logger.debug("Interface mapping requested for interface: "
"%s" % reported_nics.keys())
else:
main_logger.debug("Interface mapping requested for all interfaces")
reported_nics = mapped_nics
# Return the report on the mapped NICs. If all NICs were found, exit
# cleanly, otherwise exit with status 1.
main_logger.debug("Interface report requested, exiting after report.")
print(json.dumps(reported_nics))
return retval
# Read config file containing network configs to apply
if os.path.exists(opts.config_file):
try:
with open(opts.config_file) as cf:
iface_array = yaml.safe_load(cf.read()).get("network_config")
main_logger.debug(f"network_config: {iface_array}")
except IOError:
main_logger.error(f"Error reading file: {opts.config_file}")
return 1
else:
main_logger.error(f"No config file exists at: {opts.config_file}")
return 1
if not isinstance(iface_array, list):
main_logger.error("No interfaces defined in config: "
f"{opts.config_file}")
return 1
for iface_json in iface_array:
if iface_json.get('type') != 'route_table':
iface_json.update({'nic_mapping': iface_mapping})
iface_json.update({'persist_mapping': persist_mapping})
validation_errors = validator.validate_config(iface_array)
if validation_errors:
if opts.exit_on_validation_errors:
main_logger.error('\n'.join(validation_errors))
return 1
else:
main_logger.warning('\n'.join(validation_errors))
# Look for the presence of SriovPF types in the first parse of the json
# if SriovPFs exists then PF devices needs to be configured so that the VF
# devices are created.
# The VFs will not be available now and an exception
# SriovVfNotFoundException will be raised while fetching the device name.
# After the first parse the SR-IOV PF devices would be configured and the
# VF devices would be created.
# In the second parse, all other objects shall be added
for iface_json in iface_array:
try:
obj = objects.object_from_json(iface_json)
except utils.SriovVfNotFoundException:
continue
if isinstance(obj, objects.SriovPF):
configure_sriov = True
provider.add_object(obj)
elif hasattr(obj, 'members') and obj.members is not None:
if check_configure_sriov(obj):
configure_sriov = True
provider.add_object(obj)
sriovpf_member_of_bond_ovs_port_list.extend(
get_sriovpf_member_of_bond_ovs_port(obj))
# After reboot, shared_block for pf interface in switchdev mode will be
# missing in case IPv6 is enabled on the slaves of the bond and that bond
# is an ovs port. This is due to the fact that OVS assumes another entity
# manages the slaves.
# So as a workaround for that case we are disabling IPv6 over pfs so that
# OVS creates the shared_blocks ingress
if sriovpf_member_of_bond_ovs_port_list:
disable_ipv6_for_netdevs(sriovpf_member_of_bond_ovs_port_list)
if configure_sriov:
# Apply the ifcfgs for PFs now, so that NM_CONTROLLED=no is applied
# for each of the PFs before configuring the numvfs for the PF device.
# This step allows the network manager to unmanage the created VFs.
# In the second parse, when these ifcfgs for PFs are encountered,
# os-net-config skips the ifup <ifcfg-pfs>, since the ifcfgs for PFs
# wouldn't have changed.
pf_files_changed = provider.apply(cleanup=opts.cleanup,
activate=not opts.no_activate)
if not opts.noop:
restart_ovs = bool(sriovpf_member_of_bond_ovs_port_list)
# Avoid ovs restart for os-net-config re-runs, which will
# dirupt the offload configuration
if os.path.exists(utils._SRIOV_CONFIG_SERVICE_FILE):
restart_ovs = False
utils.configure_sriov_pfs(
execution_from_cli=True,
restart_openvswitch=restart_ovs)
for iface_json in iface_array:
# All objects other than the sriov_pf will be added here.
# The VFs are expected to be available now and an exception
# SriovVfNotFoundException shall be raised if not available.
try:
obj = objects.object_from_json(iface_json)
except utils.SriovVfNotFoundException:
if not opts.noop:
raise
if not isinstance(obj, objects.SriovPF):
provider.add_object(obj)
if configure_sriov and not opts.noop:
utils.configure_sriov_vfs()
files_changed = provider.apply(cleanup=opts.cleanup,
activate=not opts.no_activate)
if opts.noop:
if configure_sriov:
files_changed.update(pf_files_changed)
for location, data in files_changed.items():
print("File: %s\n" % location)
print(data)
print("----")
if opts.detailed_exit_codes and len(files_changed) > 0:
return 2
return 0
import argparse
import json
import os
import sys
import yaml
from os_net_config import common
from os_net_config import impl_eni
from os_net_config import impl_ifcfg
from os_net_config import impl_iproute
from os_net_config import objects
from os_net_config import utils
from os_net_config import validator
from os_net_config import version
logger = common.configure_logger()
_SYSTEM_CTL_CONFIG_FILE = '/etc/sysctl.d/os-net-sysctl.conf'
def parse_opts(argv):
parser = argparse.ArgumentParser(
description='Configure host network interfaces using a JSON'
' config file format.')
parser.add_argument('-c', '--config-file', metavar='CONFIG_FILE',
help="""path to the configuration file.""",
default='/etc/os-net-config/config.yaml')
parser.add_argument('-m', '--mapping-file', metavar='MAPPING_FILE',
help="""path to the interface mapping file.""",
default='/etc/os-net-config/mapping.yaml')
parser.add_argument('-i', '--interfaces', metavar='INTERFACES',