def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
utils.backup_file('/etc/hostname')
hostname = utils.get_hostname()
p = Popen(['hostnamectl', 'set-hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
p = Popen(['netctl', 'restart', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
utils.backup_file('/etc/hostname')
utils.backup_file('/etc/conf.d/hostname')
hostname = utils.get_hostname()
with open('/etc/hostname', 'w') as hostnamefile:
print(hostname, file=hostnamefile)
with open('/etc/conf.d/hostname', 'w') as hostnamefile:
print('HOSTNAME={0}'.format(hostname), file=hostnamefile)
p = Popen(['hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname: hostname')
# setup interface files
utils.backup_file('/etc/conf.d/net')
with open('/etc/conf.d/net', 'w') as iffile:
print('modules="iproute2"', file=iffile)
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
p = Popen(['/etc/init.d/net.{0}'.format(ifname), 'restart'], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
hostname = utils.get_hostname()
p = Popen(["hostname", hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return str(p.returncode)
self._setup_hostname(hostname)
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
p = Popen(["service", "resolv", "restart"], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
p = Popen(["service", "netif", "restart"], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
p = Popen(["service", "routing", "start"], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
return ("0", "")
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
utils.backup_file('/etc/hostname')
hostname = utils.get_hostname()
with open('/etc/hostname', 'w') as hostnamefile:
print(hostname, file=hostnamefile)
p = Popen(['hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname: hostname')
# setup interface files
self._setup_loopback()
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
p = Popen(['ifdown', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
p = Popen(['ifup', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def test_network_get_mac_addresses_failure(self):
client = ClientTest([])
mac_addrs = utils.list_xenstore_macaddrs(client)
self.assertEqual(
mac_addrs,
[],
'Mac addrs returned is not empty list after error'
)
def test_network_get_mac_addresses_exception_popen(self):
with mock.patch('novaagent.xenstore.xenstore.Popen',
side_effect=ValueError):
mac_addrs = utils.list_xenstore_macaddrs(None)
self.assertEqual(
mac_addrs, [],
'Mac addrs returned is not empty list after popen exception')
def test_network_get_mac_addresses_success(self):
check_mac_addrs = ['BC764E206C5B', 'BC764E206C5A']
client = ClientTest(xen_data.get_mac_addresses())
mac_addrs = utils.list_xenstore_macaddrs(client)
self.assertEqual(
mac_addrs,
check_mac_addrs,
'Mac addrs returned do not match expected value'
)
def resetnetwork(self, name, value, client):
ifaces = {}
hostname_return_code, _ = self._setup_hostname(client)
if hostname_return_code != 0:
log.error('Error setting hostname on system')
xen_macs = utils.list_xenstore_macaddrs(client)
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac, client)
# Backup original configuration file
utils.backup_file(self.netconfig_file)
# Setup interfaces file
self._setup_loopback()
for ifname, iface in ifaces.items():
self._setup_interfaces(ifname, iface)
# Loop through the interfaces and restart networking
for ifname in ifaces.keys():
p = Popen(['ifdown', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode),
'Error stopping network: {0}'.format(ifname))
"""
In some cases interfaces may retain old IP addresses especially
when building from a custom image. To prevent that we will do a
flush of the interface before bringing it back up.
Refer to bug:
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1584682
"""
p = Popen(['ip', 'addr', 'flush', 'dev', ifname],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode),
'Error flushing network: {0}'.format(ifname))
# Sleep for one second
time.sleep(1)
p = Popen(['ifup', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
log.error('Error received on network restart: {0}'.format(err))
return (str(p.returncode),
'Error starting network: {0}'.format(ifname))
return ('0', '')
def test_network_get_mac_addresses_failure_popen(self):
with mock.patch('novaagent.xenstore.xenstore.Popen') as popen:
popen.return_value.communicate.return_value = (b'', '')
popen.return_value.returncode = 1
mac_addrs = utils.list_xenstore_macaddrs(None)
self.assertEqual(
mac_addrs, [],
'Mac addrs returned is not empty list after popen error')
def test_network_get_mac_addresses_success_popen(self):
check_mac_addrs = ['BC764E206C5B', 'BC764E206C5A']
with mock.patch('novaagent.xenstore.xenstore.Popen') as popen:
popen.return_value.communicate.return_value = (
utils_data.get_mac_addresses())
popen.return_value.returncode = 0
mac_addrs = utils.list_xenstore_macaddrs(None)
self.assertEqual(mac_addrs, check_mac_addrs,
'Mac addrs returned do not match expected value')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
utils.backup_file('/etc/sysconfig/network')
hostname = utils.get_hostname()
with open('/etc/sysconfig/network', 'w') as netfile:
print('NETWORKING=yes', file=netfile)
print('NOZEROCONF=yes', file=netfile)
print('NETWORKING_IPV6=yes', file=netfile)
print('HOSTNAME={0}'.format(hostname), file=netfile)
if os.path.exists('/usr/bin/hostnamectl'):
utils.backup_file('/etc/hostname')
p = Popen(['hostnamectl', 'set-hostname', hostname],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
else:
p = Popen(['hostname', hostname],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
if 'routes' in iface:
self._setup_routes(ifname, iface)
p = Popen(['service', 'network', 'stop'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
p = Popen(['service', 'network', 'start'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value, client):
ifaces = {}
hostname_return_code, hostname = self._setup_hostname(client)
if hostname_return_code != 0:
return (str(hostname_return_code), 'Error setting hostname')
xen_macs = utils.list_xenstore_macaddrs(client)
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac, client)
utils.backup_file(self.network_file)
with open(self.network_file, 'w') as netfile:
netfile.write('NETWORKING=yes\n')
netfile.write('NOZEROCONF=yes\n')
netfile.write('NETWORKING_IPV6=yes\n')
netfile.write('HOSTNAME={0}\n'.format(hostname))
# move unused interface files out of the way but back them up
move_files = utils.get_ifcfg_files_to_remove(
self.netconfig_dir, '{0}-'.format(self.interface_file_prefix))
for interface_config in move_files:
utils.move_file(interface_config)
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
if 'routes' in iface:
self._setup_routes(ifname, iface)
if os.path.exists('/usr/bin/systemctl'):
p = Popen(['systemctl', 'restart', 'network.service'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
else:
p = Popen(['service', 'network', 'restart'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
utils.backup_file('/etc/sysconfig/network')
hostname = utils.get_hostname()
with open('/etc/sysconfig/network', 'w') as netfile:
print('NETWORKING=yes', file=netfile)
print('NOZEROCONF=yes', file=netfile)
print('NETWORKING_IPV6=yes', file=netfile)
print('HOSTNAME={0}'.format(hostname), file=netfile)
if os.path.exists('/usr/bin/hostnamectl'):
utils.backup_file('/etc/hostname')
p = Popen(['hostnamectl', 'set-hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
else:
p = Popen(['hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
if 'routes' in iface:
self._setup_routes(ifname, iface)
p = Popen(['service', 'network', 'stop'], stdout=PIPE, stderr=PIPE, stdin=PIPE)
p = Popen(['service', 'network', 'start'], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
hostname = utils.get_hostname()
utils.backup_file('/etc/HOSTNAME')
with open('/etc/HOSTNAME', 'w') as hostfile:
print(hostname, file=hostfile)
if os.path.exists('/usr/bin/hostnamectl'):
utils.backup_file('/etc/hostname')
p = Popen(['hostnamectl', 'set-hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
else:
p = Popen(['hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname')
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
self._setup_routes(ifname, iface)
self._setup_dns(ifname, iface)
p = Popen(['systemctl', 'restart', 'network.service'], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
hostname = utils.get_hostname()
p = Popen(['hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return str(p.returncode)
self._setup_hostname(hostname)
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
p = Popen(['service', 'resolv', 'restart'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
p = Popen(['service', 'netif', 'restart'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
p = Popen(['service', 'routing', 'start'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
return ('0', '')
def resetnetwork(self, name, value):
ifaces = {}
xen_macs = utils.list_xenstore_macaddrs()
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac)
# set hostname
utils.backup_file('/etc/hostname')
utils.backup_file('/etc/conf.d/hostname')
hostname = utils.get_hostname()
with open('/etc/hostname', 'w') as hostnamefile:
print(hostname, file=hostnamefile)
with open('/etc/conf.d/hostname', 'w') as hostnamefile:
print('HOSTNAME={0}'.format(hostname), file=hostnamefile)
p = Popen(['hostname', hostname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error setting hostname: hostname')
# setup interface files
utils.backup_file('/etc/conf.d/net')
with open('/etc/conf.d/net', 'w') as iffile:
print('modules="iproute2"', file=iffile)
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
p = Popen(['/etc/init.d/net.{0}'.format(ifname), 'restart'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode), 'Error restarting network')
return ('0', '')
def resetnetwork(self, name, value, client):
ifaces = {}
hostname_return_code, hostname = self._setup_hostname(client)
if hostname_return_code != 0:
return (str(hostname_return_code), 'Error setting hostname')
xen_macs = utils.list_xenstore_macaddrs(client)
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac, client)
# Setup interface file for all interfaces
self._setup_loopback()
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
# Loop through the interfaces and restart networking
for ifname in ifaces.keys():
p = Popen(['ifdown', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode),
'Error stopping network: {0}'.format(ifname))
# Sleep for one second
time.sleep(1)
p = Popen(['ifup', ifname], stdout=PIPE, stderr=PIPE, stdin=PIPE)
out, err = p.communicate()
if p.returncode != 0:
return (str(p.returncode),
'Error starting network: {0}'.format(ifname))
return ('0', '')
def resetnetwork(self, name, value, client):
ifaces = {}
hostname_return_code, hostname = self._setup_hostname(client)
if hostname_return_code != 0:
log.error(
'Error setting hostname: {0}'.format(hostname_return_code)
)
xen_macs = utils.list_xenstore_macaddrs(client)
for iface in utils.list_hw_interfaces():
mac = utils.get_hw_addr(iface)
if not mac or mac not in xen_macs:
continue
ifaces[iface] = utils.get_interface(mac, client)
utils.backup_file(self.network_file)
with open(self.network_file, 'w') as netfile:
netfile.write('NETWORKING=yes\n')
netfile.write('NOZEROCONF=yes\n')
netfile.write('NETWORKING_IPV6=yes\n')
netfile.write('HOSTNAME={0}\n'.format(hostname))
# move unused interface files out of the way but back them up
move_files = utils.get_ifcfg_files_to_remove(
self.netconfig_dir,
'{0}-'.format(self.interface_file_prefix)
)
for interface_config in move_files:
utils.backup_file(interface_config)
# setup interface files
for ifname, iface in ifaces.items():
self._setup_interface(ifname, iface)
if 'routes' in iface:
self._setup_routes(ifname, iface)
"""
Creating servers from custom images may leave IP information
from the image source. Flush the interface before restart of
the network to clear out source image IP information
"""
p = Popen(
['ip', 'addr', 'flush', 'dev', ifname],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE
)
out, err = p.communicate()
if p.returncode != 0:
# Log error and continue to restart network
log.error('Error flushing interface: {0}'.format(ifname))
if os.path.exists('/usr/bin/systemctl'):
p = Popen(
['systemctl', 'restart', 'network.service'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE
)
else:
p = Popen(
['service', 'network', 'restart'],
stdout=PIPE,
stderr=PIPE,
stdin=PIPE
)
out, err = p.communicate()
if p.returncode != 0:
log.error('Error received on network restart: {0}'.format(err))
return (str(p.returncode), 'Error restarting network')
return ('0', '')
