def cleanup_udev(rootdir):
"""
Cleanup eventual HWADDR - device name definitions in udev rules.
Parameters
----------
rootdir: str
Full path of udev root dir.
Returns
-------
"""
_logger.debug('__ Update network udev rules.')
udevrootdir = rootdir + '/etc/udev'
_logger.debug('udev root is %s' % udevrootdir)
pregex = fnmatch.translate('*rules')
rulefiles = []
if os.path.isdir(udevrootdir):
#
# Backup
_ = system_tools.backup_dir(udevrootdir)
#
# Cleanup
for root, dirs, files in os.walk(udevrootdir):
for fn in files:
fullfn = os.path.join(root, fn)
#
# Look for .rules file
if re.search(pregex, fullfn):
rulefiles.append(fullfn)
macmatch = False
with open(fullfn, 'r') as g:
#
# Look for network naming rules
for line in g:
if re.match("(.*)KERNEL==\"eth(.*)", line):
macmatch = True
_logger.debug('Found rule in %s.' % fullfn)
break
if macmatch:
#
# Rewrite the network naming rules
mv_fullfn = fullfn + '_save'
try:
shutil.move(fullfn, mv_fullfn)
fndata = open(mv_fullfn, 'r').read()
newf = open(fullfn, 'w')
for lx in fndata.splitlines():
if not re.match("(.*)KERNEL==\"eth(.*)", lx):
newf.write('%s\n' % lx)
newf.close()
os.remove(mv_fullfn)
except Exception as e:
_logger.error(' Failed to rewrite udev network '
'naming rules: %s' % str(e))
return False
else:
_logger.debug('Directory %s not found.')
return True
def reconfigure_interfaces(rootdir):
"""
Parse the network interfaces file.
Parameters
----------
rootdir: str
Full path of image root dir as loopback mounted.
Returns
-------
list: list of nic.
dict: the interfaces configuration.
"""
_logger.debug('__ The network interfaces configuration.')
int_data = dict()
int_nics = list()
root_path = rootdir + get_config_data('default_interfaces')
net_ifcfg_config = root_path + '/interfaces'
if os.path.isfile(net_ifcfg_config):
int_data[get_config_data('default_interfaces')] = list()
_logger.debug('%s file exists' % net_ifcfg_config)
try:
with open(net_ifcfg_config, 'r') as inf:
for ln in inf:
int_data[get_config_data('default_interfaces')].append(ln)
if 'iface' in ln.split():
if ln.split()[1] != 'lo':
int_nics.append(ln.split()[1])
else:
_logger.debug('no iface in %s' % ln)
except Exception as e:
_logger.error(' Error occured while reading %s: %s' %
(net_ifcfg_config, str(e)))
#
# rewrite
if len(int_nics) == 0:
_logger.debug('No interface definitions found in %s' %
net_ifcfg_config)
else:
try:
#
# backup
bck_root_path = system_tools.backup_dir(root_path)
_logger.debug('Copied %s to %s' % (root_path, bck_root_path))
#
# remove dir
shutil.rmtree(root_path + '/interfaces.d')
#
# recreate interfaces config
with open(net_ifcfg_config, 'w') as fi:
fi.writelines(
ln.replace('_XXXX_', int_nics[0]) + '\n'
for ln in get_config_data('default_interfaces_config'))
migrate_tools.result_msg(
msg='Network interfaces file rewritten.', result=False)
except Exception as e:
_logger.error(' Failed to write new interfaces configuration '
'file %s: %s' % (net_ifcfg_config, str(e)))
else:
_logger.debug('No network interfaces configuration.')
return int_nics, int_data
def reconfigure_networkmanager(rootdir):
"""
Replace the networkmanager configuration with Oracle Cloud Infrastructure
compatible version.
Parameters
----------
rootdir: str
Full path of image root dir as loopback mounted.
Returns
-------
list: list of nic.
dict: the network manager system-connections configurations
"""
_logger.debug('__ The NetworkManager configuration.')
netwmg_data = dict()
netwmg_nics = list()
network_config_dir = rootdir + get_config_data('default_nwconnections')
_logger.debug('Network manager dir: %s' % network_config_dir)
nw_mgr_cfg = rootdir + get_config_data('default_nwmconfig')
_logger.debug('Network manager conf: %s' % nw_mgr_cfg)
#
# backup
try:
#
# copy
if os.path.isfile(nw_mgr_cfg):
bck_nw_mgr_cfg = system_tools.exec_rename(nw_mgr_cfg)
if bool(bck_nw_mgr_cfg):
_logger.debug('Copied %s to %s' % (nw_mgr_cfg, bck_nw_mgr_cfg))
else:
_logger.warning(
'Failed to backup network manager configuration.')
else:
_logger.debug('No %s found.' % nw_mgr_cfg)
#
if os.path.isdir(network_config_dir):
bck_network_config_dir = system_tools.backup_dir(
network_config_dir)
_logger.debug('Copied %s to %s' %
(network_config_dir, bck_network_config_dir))
else:
_logger.debug('%s not found.' % network_config_dir)
except Exception as e:
migrate_tools.error_msg('Failed to backup the networkmanager '
'configuration: %s' % str(e))
#
#
if os.path.isdir(network_config_dir):
_logger.debug('NetworkManager/%s directory exists.' %
network_config_dir)
#
# contains nwm keyfiles?
nwm_files = glob(network_config_dir + '/*')
if len(nwm_files) > 0:
system_tools.exec_rmdir(network_config_dir)
system_tools.exec_mkdir(network_config_dir)
_logger.debug('%s emptied.' % network_config_dir)
else:
_logger.debug('No network manager keyfiles found.')
#
# update networkmanager configuration
# TODO: write config file with configparser
nwm_config_data = get_config_data('default_nwm_conf_file')
with open(nw_mgr_cfg, 'w') as nwmf:
nwmf.write('\n'.join(str(x) for x in nwm_config_data))
migrate_tools.result_msg(
msg='Networkmanager configuration updated.', result=False)
else:
_logger.debug(msg=' No NetworkManager configuration present.')
return netwmg_nics, netwmg_data
