def delete(self):
with util.RecordedOperation('delete domain', self) as _:
try:
self.power_off()
instance = self._get_domain()
instance.undefine()
except Exception:
pass
with util.RecordedOperation('delete disks', self) as _:
try:
shutil.rmtree(self.instance_path)
except Exception:
pass
with util.RecordedOperation('release network addreses', self) as _:
for ni in db.get_instance_interfaces(self.db_entry['uuid']):
with db.get_lock('sf/ipmanager/%s' % ni['network_uuid'],
ttl=120) as _:
ipm = db.get_ipmanager(ni['network_uuid'])
ipm.release(ni['ipv4'])
db.persist_ipmanager(ni['network_uuid'], ipm.save())
db.update_instance_state(self.db_entry['uuid'], 'deleted')
db.free_console_port(self.db_entry['console_port'])
db.free_console_port(self.db_entry['vdi_port'])
def restore_instances():
# Ensure all instances for this node are defined
networks = []
instances = []
for inst in list(
db.get_instances(only_node=config.parsed.get('NODE_NAME'))):
for iface in db.get_instance_interfaces(inst['uuid']):
if not iface['network_uuid'] in networks:
networks.append(iface['network_uuid'])
instances.append(inst['uuid'])
with util.RecordedOperation('restore networks', None) as _:
for network in networks:
try:
n = net.from_db(network)
LOG.info('%s Restoring network' % n)
n.create()
n.ensure_mesh()
n.update_dhcp()
except Exception as e:
LOG.error('%s Failed to restore network: %s' % (n, e))
with util.RecordedOperation('restore instances', None) as _:
for instance in instances:
try:
i = virt.from_db(instance)
LOG.info('%s Restoring instance' % i)
i.create()
except Exception as e:
LOG.error('%s Failed to restore instance: %s' % (i, e))
db.update_instance_state(instance, 'error')
def delete(self):
with util.RecordedOperation('delete domain', self):
try:
self.power_off()
instance = self._get_domain()
if instance:
instance.undefine()
except Exception as e:
util.ignore_exception('instance delete', e)
with util.RecordedOperation('delete disks', self):
try:
if os.path.exists(self.instance_path):
shutil.rmtree(self.instance_path)
except Exception as e:
util.ignore_exception('instance delete', e)
with util.RecordedOperation('release network addresses', self):
for ni in db.get_instance_interfaces(self.db_entry['uuid']):
db.update_network_interface_state(ni['uuid'], 'deleted')
with db.get_lock('ipmanager',
None,
ni['network_uuid'],
ttl=120,
op='Instance delete'):
ipm = db.get_ipmanager(ni['network_uuid'])
ipm.release(ni['ipv4'])
db.persist_ipmanager(ni['network_uuid'], ipm.save())
db.free_console_port(self.db_entry['console_port'])
db.free_console_port(self.db_entry['vdi_port'])
def delete(self, instance_uuid=None, instance_from_db_virt=None):
db.add_event('instance', instance_uuid, 'API DELETE', None, None, None)
instance_networks = []
for iface in list(db.get_instance_interfaces(instance_uuid)):
if not iface['network_uuid'] in instance_networks:
instance_networks.append(iface['network_uuid'])
host_networks = []
for inst in list(db.get_instances(local_only=True)):
if not inst['uuid'] == instance_uuid:
for iface in db.get_instance_interfaces(inst['uuid']):
if not iface['network_uuid'] in host_networks:
host_networks.append(iface['network_uuid'])
instance_from_db_virt.delete()
for network in instance_networks:
n = net.from_db(network)
if n:
if network in host_networks:
with util.RecordedOperation('deallocate ip address',
instance_from_db_virt) as _:
n.update_dhcp()
else:
with util.RecordedOperation('remove network', n) as _:
n.delete()
def instance_start(instance_uuid, network):
log = LOG.withField('instance', instance_uuid)
with db.get_lock('instance',
None,
instance_uuid,
ttl=900,
timeout=120,
op='Instance start') as lock:
instance = virt.from_db(instance_uuid)
# Collect the networks
nets = {}
for netdesc in network:
if netdesc['network_uuid'] not in nets:
n = net.from_db(netdesc['network_uuid'])
if not n:
db.enqueue_instance_error(instance_uuid, 'missing network')
return
nets[netdesc['network_uuid']] = n
# Create the networks
with util.RecordedOperation('ensure networks exist', instance):
for network_uuid in nets:
n = nets[network_uuid]
try:
n.create()
n.ensure_mesh()
n.update_dhcp()
except exceptions.DeadNetwork as e:
log.withField(
'network',
n).warning('Instance tried to use dead network')
db.enqueue_instance_error(
instance_uuid, 'tried to use dead network: %s' % e)
return
# Allocate console and VDI ports
instance.allocate_instance_ports()
# Now we can start the instance
libvirt = util.get_libvirt()
try:
with util.RecordedOperation('instance creation', instance):
instance.create(lock=lock)
except libvirt.libvirtError as e:
code = e.get_error_code()
if code in (libvirt.VIR_ERR_CONFIG_UNSUPPORTED,
libvirt.VIR_ERR_XML_ERROR):
db.enqueue_instance_error(instance_uuid,
'instance failed to start: %s' % e)
return
for iface in db.get_instance_interfaces(instance_uuid):
db.update_network_interface_state(iface['uuid'], 'created')
def deploy_nat(self):
if not self.provide_nat:
return
subst = self.subst_dict()
floatnet = from_db('floating')
if not self.floating_gateway:
self.floating_gateway = floatnet.ipmanager.get_random_free_address(
)
self.persist_floating_gateway()
floatnet.persist_ipmanager()
subst['floating_router'] = floatnet.ipmanager.get_address_at_index(1)
subst['floating_gateway'] = self.floating_gateway
subst['floating_netmask'] = floatnet.netmask
with lockutils.lock('sf_net_%s' % self.uuid,
external=True,
lock_path='/tmp/'):
if not subst['floating_gateway'] in list(
util.get_interface_addresses(
subst['namespace'], subst['physical_veth_inner'])):
with util.RecordedOperation('enable virtual routing',
self) as _:
processutils.execute(
'%(in_namespace)s ip addr add %(floating_gateway)s/%(floating_netmask)s '
'dev %(physical_veth_inner)s' % subst,
shell=True)
processutils.execute(
'%(in_namespace)s ip link set %(physical_veth_inner)s up'
% subst,
shell=True)
processutils.execute(
'%(in_namespace)s route add default gw %(floating_router)s'
% subst,
shell=True)
if not util.nat_rules_for_ipblock(self.ipmanager.network_address):
with util.RecordedOperation('enable nat', self) as _:
processutils.execute(
'echo 1 > /proc/sys/net/ipv4/ip_forward', shell=True)
processutils.execute(
'%(in_namespace)s iptables -A FORWARD -o %(physical_veth_inner)s '
'-i %(vx_veth_inner)s -j ACCEPT' % subst,
shell=True)
processutils.execute(
'%(in_namespace)s iptables -A FORWARD -i %(physical_veth_inner)s '
'-o %(vx_veth_inner)s -j ACCEPT' % subst,
shell=True)
processutils.execute(
'%(in_namespace)s iptables -t nat -A POSTROUTING -s %(ipblock)s/%(netmask)s '
'-o %(physical_veth_inner)s -j MASQUERADE' % subst,
shell=True)
def deploy_nat(self):
if not self.provide_nat:
return
subst = self.subst_dict()
if not self.floating_gateway:
with db.get_lock('ipmanager', None, 'floating', ttl=120):
ipm = db.get_ipmanager('floating')
self.floating_gateway = ipm.get_random_free_address()
db.persist_ipmanager('floating', ipm.save())
self.persist_floating_gateway()
# No lock because no data changing
ipm = db.get_ipmanager('floating')
subst['floating_router'] = ipm.get_address_at_index(1)
subst['floating_gateway'] = self.floating_gateway
subst['floating_netmask'] = ipm.netmask
with db.get_lock('network', None, self.uuid, ttl=120):
if not subst['floating_gateway'] in list(
util.get_interface_addresses(
subst['netns'], subst['physical_veth_inner'])):
with util.RecordedOperation('enable virtual routing', self):
util.execute(
None,
'%(in_netns)s ip addr add %(floating_gateway)s/%(floating_netmask)s '
'dev %(physical_veth_inner)s' % subst)
util.execute(
None,
'%(in_netns)s ip link set %(physical_veth_inner)s up' %
subst)
util.execute(
None,
'%(in_netns)s route add default gw %(floating_router)s'
% subst)
if not util.nat_rules_for_ipblock(self.network_address):
with util.RecordedOperation('enable nat', self):
util.execute(None,
'echo 1 > /proc/sys/net/ipv4/ip_forward')
util.execute(
None,
'%(in_netns)s iptables -A FORWARD -o %(physical_veth_inner)s '
'-i %(vx_veth_inner)s -j ACCEPT' % subst)
util.execute(
None,
'%(in_netns)s iptables -A FORWARD -i %(physical_veth_inner)s '
'-o %(vx_veth_inner)s -j ACCEPT' % subst)
util.execute(
None,
'%(in_netns)s iptables -t nat -A POSTROUTING -s %(ipblock)s/%(netmask)s '
'-o %(physical_veth_inner)s -j MASQUERADE' % subst)
def ensure_mesh(self):
with util.RecordedOperation('ensure mesh', self) as _:
instances = []
for iface in db.get_network_interfaces(self.uuid):
if not iface['instance_uuid'] in instances:
instances.append(iface['instance_uuid'])
node_fqdns = []
for inst in instances:
i = db.get_instance(inst)
if not i['node'] in node_fqdns:
node_fqdns.append(i['node'])
# NOTE(mikal): why not use DNS here? Well, DNS might be outside
# the control of the deployer if we're running in a public cloud
# as an overlay cloud...
node_ips = [config.parsed.get('NETWORK_NODE_IP')]
for fqdn in node_fqdns:
ip = db.get_node(fqdn)['ip']
if ip not in node_ips:
node_ips.append(ip)
discovered = list(self.discover_mesh())
LOG.debug('%s: Discovered mesh elements %s' % (self, discovered))
for node in discovered:
if node in node_ips:
node_ips.remove(node)
else:
self._remove_mesh_element(node)
for node in node_ips:
self._add_mesh_element(node)
def _get(self, locks, related_object):
"""Fetch image if not downloaded and return image path."""
actual_image = self.version_image_path()
with util.RecordedOperation('fetch image', related_object):
resp = self._open_connection()
diff_field = self._new_image_available(resp)
if diff_field:
self.log.withField(
'diff_field',
diff_field).info('Fetch required due HTTP field change')
if related_object:
t, u = related_object.unique_label()
msg = '%s: %s -> %s' % diff_field
db.add_event(t, u, 'image requires fetch', None, None, msg)
actual_image = self._fetch(resp, locks)
# Ensure checksum is correct
if not self.correct_checksum(actual_image):
raise exceptions.BadCheckSum('url=%s' % self.url)
_transcode(locks, actual_image, related_object)
return actual_image
def snapshot(self, all=False):
disks = self.db_entry['block_devices']['devices']
if not all:
disks = [disks[0]]
snapshot_uuid = str(uuid.uuid4())
snappath = os.path.join(self.snapshot_path, snapshot_uuid)
if not os.path.exists(snappath):
LOG.withObj(self).debug('Creating snapshot storage at %s' %
snappath)
os.makedirs(snappath)
with open(os.path.join(self.snapshot_path, 'index.html'),
'w') as f:
f.write('<html></html>')
for d in disks:
if not os.path.exists(d['path']):
continue
if d['snapshot_ignores']:
continue
if d['type'] != 'qcow2':
continue
with util.RecordedOperation('snapshot %s' % d['device'], self):
self._snapshot_device(d['path'],
os.path.join(snappath, d['device']))
db.create_snapshot(snapshot_uuid, d['device'],
self.db_entry['uuid'], time.time())
return snapshot_uuid
def _get(self, locks, related_object):
"""Fetch image if not downloaded and return image path."""
with db.get_lock('image', config.parsed.get('NODE_NAME'),
self.hashed_image_url) as image_lock:
with util.RecordedOperation('fetch image', related_object):
dirty_fields, resp = self._requires_fetch()
if dirty_fields:
logutil.info([self],
'Starting fetch due to dirty fields %s' %
dirty_fields)
if related_object:
t, u = related_object.get_describing_tuple()
dirty_fields_pretty = []
for field in dirty_fields:
dirty_fields_pretty.append(
'%s: %s -> %s' %
(field, dirty_fields[field]['before'],
dirty_fields[field]['after']))
db.add_event(t, u, 'image requires fetch', None, None,
'\n'.join(dirty_fields_pretty))
actual_image = self._fetch(resp,
locks=locks.append(image_lock))
else:
actual_image = '%s.v%03d' % (self.hashed_image_path,
self.info['version'])
_transcode(locks, actual_image, related_object)
return actual_image
def restore_instances():
# Ensure all instances for this node are defined
networks = []
instances = []
for inst in list(
db.get_instances(only_node=config.parsed.get('NODE_NAME'))):
for iface in db.get_instance_interfaces(inst['uuid']):
if not iface['network_uuid'] in networks:
networks.append(iface['network_uuid'])
instances.append(inst['uuid'])
with util.RecordedOperation('restore networks', None):
for network in networks:
try:
n = net.from_db(network)
LOG.withObj(n).info('Restoring network')
n.create()
n.ensure_mesh()
n.update_dhcp()
except Exception as e:
util.ignore_exception('restore network %s' % network, e)
with util.RecordedOperation('restore instances', None):
for instance in instances:
try:
with db.get_lock('instance',
None,
instance,
ttl=120,
timeout=120,
op='Instance restore'):
i = virt.from_db(instance)
if not i:
continue
started = ['on', 'transition-to-on', 'initial', 'unknown']
if i.db_entry.get('power_state', 'unknown') not in started:
continue
LOG.withObj(i).info('Restoring instance')
i.create()
except Exception as e:
util.ignore_exception('restore instance %s' % instance, e)
db.enqueue_instance_error(
instance,
'exception while restoring instance on daemon restart')
def delete(self):
subst = self.subst_dict()
# Cleanup local node
with lockutils.lock('sf_net_%s' % self.uuid,
external=True,
lock_path='/tmp/'):
if util.check_for_interface(subst['vx_bridge']):
with util.RecordedOperation('delete vxlan bridge', self) as _:
processutils.execute('ip link delete %(vx_bridge)s' %
subst,
shell=True)
if util.check_for_interface(subst['vx_interface']):
with util.RecordedOperation('delete vxlan interface',
self) as _:
processutils.execute('ip link delete %(vx_interface)s' %
subst,
shell=True)
# If this is the network node do additional cleanup
if config.parsed.get('NODE_IP') == config.parsed.get(
'NETWORK_NODE_IP'):
if util.check_for_interface(subst['vx_veth_outer']):
with util.RecordedOperation('delete router veth', self) as _:
processutils.execute('ip link delete %(vx_veth_outer)s' %
subst,
shell=True)
if util.check_for_interface(subst['physical_veth_outer']):
with util.RecordedOperation('delete physical veth', self) as _:
processutils.execute(
'ip link delete %(physical_veth_outer)s' % subst,
shell=True)
if os.path.exists('/var/run/netns/%(namespace)s' % subst):
with util.RecordedOperation('delete netns', self) as _:
processutils.execute('ip netns del %(namespace)s' % subst,
shell=True)
if self.floating_gateway:
floatnet = from_db('floating')
floatnet.ipmanager.release(self.floating_gateway)
floatnet.persist_ipmanager()
def post(self, url=None):
db.add_event('image', url, 'api', 'cache', None, None)
with util.RecordedOperation('cache image', url) as _:
image_url = images.resolve(url)
hashed_image_path, info, image_dirty, resp = \
images.requires_fetch(image_url)
if image_dirty:
images.fetch(hashed_image_path, info, resp)
def instance_start(instance_uuid, network):
with db.get_lock('instance', None, instance_uuid, ttl=900) as lock:
instance = virt.from_db(instance_uuid)
# Collect the networks
nets = {}
for netdesc in network:
if netdesc['network_uuid'] not in nets:
n = net.from_db(netdesc['network_uuid'])
if not n:
db.enqueue_instance_delete(config.parsed.get('NODE_NAME'),
instance_uuid, 'error',
'missing network')
return
nets[netdesc['network_uuid']] = n
# Create the networks
with util.RecordedOperation('ensure networks exist', instance):
for network_uuid in nets:
n = nets[network_uuid]
n.create()
n.ensure_mesh()
n.update_dhcp()
# Now we can start the isntance
libvirt = util.get_libvirt()
try:
with util.RecordedOperation('instance creation', instance):
instance.create(lock=lock)
except libvirt.libvirtError as e:
code = e.get_error_code()
if code in (libvirt.VIR_ERR_CONFIG_UNSUPPORTED,
libvirt.VIR_ERR_XML_ERROR):
db.enqueue_instance_delete(config.parsed.get('NODE_NAME'),
instance_uuid, 'error',
'instance failed to start')
return
for iface in db.get_instance_interfaces(instance_uuid):
db.update_network_interface_state(iface['uuid'], 'created')
def delete(self):
with util.RecordedOperation('delete domain', self) as _:
try:
self.power_off()
except:
pass
with util.RecordedOperation('delete disks', self) as _:
try:
shutil.rmtree(self.instance_path)
except:
pass
with util.RecordedOperation('release network addreses', self) as _:
for ni in db.get_instance_interfaces(self.db_entry['uuid']):
n = net.from_db(ni['network_uuid'])
n.ipmanager.release(ni['ipv4'])
n.persist_ipmanager()
db.delete_instance(self.db_entry['uuid'])
def delete(self):
subst = self.subst_dict()
LOG.withFields(subst).debug('net.delete()')
# Cleanup local node
with db.get_object_lock(self, ttl=120, op='Network delete'):
if util.check_for_interface(subst['vx_bridge']):
with util.RecordedOperation('delete vxlan bridge', self):
util.execute(None, 'ip link delete %(vx_bridge)s' % subst)
if util.check_for_interface(subst['vx_interface']):
with util.RecordedOperation('delete vxlan interface', self):
util.execute(None,
'ip link delete %(vx_interface)s' % subst)
# If this is the network node do additional cleanup
if util.is_network_node():
if util.check_for_interface(subst['vx_veth_outer']):
with util.RecordedOperation('delete router veth', self):
util.execute(
None, 'ip link delete %(vx_veth_outer)s' % subst)
if util.check_for_interface(subst['physical_veth_outer']):
with util.RecordedOperation('delete physical veth', self):
util.execute(
None,
'ip link delete %(physical_veth_outer)s' % subst)
if os.path.exists('/var/run/netns/%(netns)s' % subst):
with util.RecordedOperation('delete netns', self):
util.execute(None, 'ip netns del %(netns)s' % subst)
if self.db_entry['floating_gateway']:
with db.get_lock('ipmanager',
None,
'floating',
ttl=120,
op='Network delete'):
ipm = db.get_ipmanager('floating')
ipm.release(self.db_entry['floating_gateway'])
db.persist_ipmanager('floating', ipm.save())
def discover_mesh(self):
mesh_re = re.compile(r'00:00:00:00:00:00 dst (.*) self permanent')
with util.RecordedOperation('discover mesh', self) as _:
stdout, _ = processutils.execute(
'bridge fdb show brport %(vx_interface)s' % self.subst_dict(),
shell=True)
for line in stdout.split('\n'):
m = mesh_re.match(line)
if m:
yield m.group(1)
def instance_delete(instance_uuid):
with db.get_lock('instance',
None,
instance_uuid,
timeout=120,
op='Instance delete'):
db.add_event('instance', instance_uuid, 'queued', 'delete', None, None)
# Create list of networks used by instance
instance_networks = []
for iface in list(db.get_instance_interfaces(instance_uuid)):
if not iface['network_uuid'] in instance_networks:
instance_networks.append(iface['network_uuid'])
# Create list of networks used by all other instances
host_networks = []
for inst in list(
db.get_instances(only_node=config.parsed.get('NODE_NAME'))):
if not inst['uuid'] == instance_uuid:
for iface in db.get_instance_interfaces(inst['uuid']):
if not iface['network_uuid'] in host_networks:
host_networks.append(iface['network_uuid'])
instance_from_db_virt = virt.from_db(instance_uuid)
if instance_from_db_virt:
instance_from_db_virt.delete()
# Check each network used by the deleted instance
for network in instance_networks:
n = net.from_db(network)
if n:
# If network used by another instance, only update
if network in host_networks:
with util.RecordedOperation('deallocate ip address',
instance_from_db_virt):
n.update_dhcp()
else:
# Network not used by any other instance therefore delete
with util.RecordedOperation('remove network', n):
n.delete()
def delete(self,
instance_uuid=None,
instance_from_db=None,
instance_from_db_virt=None):
# Check if instance has already been deleted
if instance_from_db['state'] == 'deleted':
return error(404, 'instance not found')
with db.get_lock('/sf/instance/%s' % instance_uuid) as _:
db.add_event('instance', instance_uuid, 'api', 'delete', None,
None)
instance_networks = []
for iface in list(db.get_instance_interfaces(instance_uuid)):
if not iface['network_uuid'] in instance_networks:
instance_networks.append(iface['network_uuid'])
db.update_network_interface_state(iface['uuid'], 'deleted')
host_networks = []
for inst in list(
db.get_instances(
only_node=config.parsed.get('NODE_NAME'))):
if not inst['uuid'] == instance_uuid:
for iface in db.get_instance_interfaces(inst['uuid']):
if not iface['network_uuid'] in host_networks:
host_networks.append(iface['network_uuid'])
instance_from_db_virt.delete()
for network in instance_networks:
n = net.from_db(network)
if n:
if network in host_networks:
with util.RecordedOperation(
'deallocate ip address',
instance_from_db_virt) as _:
n.update_dhcp()
else:
with util.RecordedOperation('remove network', n) as _:
n.delete()
def _transcode(locks, actual_image, related_object):
with util.RecordedOperation('transcode image', related_object):
if os.path.exists(actual_image + '.qcow2'):
return
current_format = identify(actual_image).get('file format')
if current_format == 'qcow2':
os.link(actual_image, actual_image + '.qcow2')
return
util.execute(
locks, 'qemu-img convert -t none -O qcow2 %s %s.qcow2' %
(actual_image, actual_image))
def remove_dhcp(self):
if util.is_network_node():
subst = self.subst_dict()
with util.RecordedOperation('remove dhcp', self):
with db.get_lock('network', None, self.uuid, ttl=120):
d = dhcp.DHCP(self.uuid, subst['vx_veth_inner'])
d.remove_dhcpd()
else:
db.enqueue('networknode', {
'type': 'remove_dhcp',
'network_uuid': self.uuid
})
db.add_event('network', self.uuid, 'remove dhcp', 'enqueued', None,
None)
def remove_dhcp(self):
if util.is_network_node():
subst = self.subst_dict()
with util.RecordedOperation('remove dhcp', self):
with db.get_object_lock(self,
ttl=120,
op='Network remove DHCP'):
d = dhcp.DHCP(self, subst['vx_veth_inner'])
d.remove_dhcpd()
else:
db.enqueue('networknode',
RemoveDHCPNetworkTask(self.db_entry['uuid']))
db.add_event('network', self.db_entry['uuid'], 'remove dhcp',
'enqueued', None, None)
def restore_instances():
# Ensure all instances for this node are defined
networks = []
instances = []
for inst in list(db.get_instances(local_only=True)):
for iface in db.get_instance_interfaces(inst['uuid']):
if not iface['network_uuid'] in networks:
networks.append(iface['network_uuid'])
instances.append(inst['uuid'])
with util.RecordedOperation('restore networks', None) as _:
for network in networks:
LOG.info('Restoring network %s' % network)
n = net.from_db(network)
n.create()
n.ensure_mesh()
n.update_dhcp()
with util.RecordedOperation('restore instances', None) as _:
for instance in instances:
LOG.info('Restoring instance %s' % instance)
i = virt.from_db(instance)
i.create()
def delete(self):
subst = self.subst_dict()
# Cleanup local node
with db.get_lock('sf/net/%s' % self.uuid, ttl=120) as _:
if util.check_for_interface(subst['vx_bridge']):
with util.RecordedOperation('delete vxlan bridge', self) as _:
processutils.execute('ip link delete %(vx_bridge)s' % subst,
shell=True)
if util.check_for_interface(subst['vx_interface']):
with util.RecordedOperation('delete vxlan interface', self) as _:
processutils.execute('ip link delete %(vx_interface)s' % subst,
shell=True)
# If this is the network node do additional cleanup
if config.parsed.get('NODE_IP') == config.parsed.get('NETWORK_NODE_IP'):
if util.check_for_interface(subst['vx_veth_outer']):
with util.RecordedOperation('delete router veth', self) as _:
processutils.execute('ip link delete %(vx_veth_outer)s' % subst,
shell=True)
if util.check_for_interface(subst['physical_veth_outer']):
with util.RecordedOperation('delete physical veth', self) as _:
processutils.execute('ip link delete %(physical_veth_outer)s' % subst,
shell=True)
if os.path.exists('/var/run/netns/%(netns)s' % subst):
with util.RecordedOperation('delete netns', self) as _:
processutils.execute('ip netns del %(netns)s' % subst,
shell=True)
if self.floating_gateway:
with db.get_lock('sf/ipmanager/floating', ttl=120) as _:
ipm = db.get_ipmanager('floating')
ipm.release(self.floating_gateway)
db.persist_ipmanager('floating', ipm.save())
def remove_dhcp(self):
if config.parsed.get('NODE_IP') == config.parsed.get(
'NETWORK_NODE_IP'):
subst = self.subst_dict()
with util.RecordedOperation('remove dhcp', self) as _:
with lockutils.lock('sf_net_%s' % self.uuid,
external=True,
lock_path='/tmp/'):
d = dhcp.DHCP(self.uuid, subst['vx_veth_inner'])
d.remove_dhcpd()
else:
requests.request('put', ('http://%s:%d/remove_dhcp' %
(config.parsed.get('NETWORK_NODE_IP'),
config.parsed.get('API_PORT'))),
data=json.dumps({'uuid': self.uuid}))
def update_dhcp(self):
if not self.db_entry['provide_dhcp']:
return
if util.is_network_node():
subst = self.subst_dict()
with util.RecordedOperation('update dhcp', self):
with db.get_object_lock(self,
ttl=120,
op='Network update DHCP'):
d = dhcp.DHCP(self, subst['vx_veth_inner'])
d.restart_dhcpd()
else:
db.enqueue('networknode',
UpdateDHCPNetworkTask(self.db_entry['uuid']))
db.add_event('network', self.db_entry['uuid'], 'update dhcp',
'enqueued', None, None)
def update_dhcp(self):
if not self.provide_dhcp:
return
if util.is_network_node():
self.ensure_mesh()
subst = self.subst_dict()
with util.RecordedOperation('update dhcp', self):
with db.get_lock('network', None, self.uuid, ttl=120):
d = dhcp.DHCP(self.uuid, subst['vx_veth_inner'])
d.restart_dhcpd()
else:
db.enqueue('networknode', {
'type': 'update_dhcp',
'network_uuid': self.uuid
})
db.add_event('network', self.uuid, 'update dhcp', 'enqueued', None,
None)
def remove_dhcp(self):
if config.parsed.get('NODE_IP') == config.parsed.get('NETWORK_NODE_IP'):
subst = self.subst_dict()
with util.RecordedOperation('remove dhcp', self) as _:
with db.get_lock('sf/net/%s' % self.uuid, ttl=120) as _:
d = dhcp.DHCP(self.uuid, subst['vx_veth_inner'])
d.remove_dhcpd()
else:
admin_token = util.get_api_token(
'http://%s:%d' % (config.parsed.get('NETWORK_NODE_IP'),
config.parsed.get('API_PORT')),
namespace='system')
requests.request(
'put',
('http://%s:%d/remove_dhcp'
% (config.parsed.get('NETWORK_NODE_IP'),
config.parsed.get('API_PORT'))),
data=json.dumps({'uuid': self.uuid}),
headers={'Authorization': admin_token,
'User-Agent': util.get_user_agent()})
def _get(self, locks, related_object):
"""Fetch image if not downloaded and return image path."""
actual_image = self.version_image_path()
with util.RecordedOperation('fetch image', related_object):
resp = self._open_connection()
diff_field = self._new_image_available(resp)
if diff_field:
self.log.withField(
'diff_field',
diff_field).info('Fetch required due HTTP field change')
if related_object:
t, u = related_object.unique_label()
msg = '%s: %s -> %s' % diff_field
db.add_event(t, u, 'image requires fetch', None, None, msg)
actual_image = self._fetch(resp, locks)
# Ensure checksum is correct
if not self.correct_checksum(actual_image):
if isinstance(related_object, virt.Instance):
related_object.add_event('fetch image', 'bad checksum')
raise exceptions.BadCheckSum('url=%s' % self.url)
# Only persist values after the file has been verified.
# Otherwise diff_field will not trigger a new download in the
# case of a checksum verification failure.
self.fetched = email.utils.formatdate()
self.modified = resp.headers.get('Last-Modified')
self.size = resp.headers.get('Content-Length')
self.persist()
_transcode(locks, actual_image, related_object)
return actual_image
