def _plug(self, namespace, port, reuse_existing=True):
self.plugin_rpc.plug_vip_port(port['id'])
interface_name = self.vif_driver.get_device_name(Wrap(port))
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name
)
else:
self.vif_driver.plug(
port['network_id'],
port['id'],
interface_name,
port['mac_address'],
namespace=namespace
)
cidrs = [
'%s/%s' % (ip['ip_address'],
netaddr.IPNetwork(ip['subnet']['cidr']).prefixlen)
for ip in port['fixed_ips']
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
gw_ip = port['fixed_ips'][0]['subnet'].get('gateway_ip')
if gw_ip:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
def _plug(self, namespace, port, reuse_existing=True):
self.plugin_rpc.plug_vip_port(port['id'])
## 更新DB vip创建时创建的port的信息
interface_name = self.vif_driver.get_device_name(Wrap(port))
#interface_name=u'tap88837aa4-c3'
# #判断在命名空间是否存在设备，存在则跳过
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name
)
else:
##不存在这个设备，利用vif_driver进行plug
self.vif_driver.plug(
port['network_id'],
port['id'],
interface_name,
port['mac_address'],
namespace=namespace
)
cidrs = [
'%s/%s' % (ip['ip_address'],
netaddr.IPNetwork(ip['subnet']['cidr']).prefixlen)
for ip in port['fixed_ips']
] #cidrs=[u'11.11.11.11/24']
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
#为网卡设置L3初始化
gw_ip = port['fixed_ips'][0]['subnet'].get('gateway_ip')
# 分别出有网关IP和无网关IP的情况
if not gw_ip:
host_routes = port['fixed_ips'][0]['subnet'].get('host_routes', [])
for host_route in host_routes:
if host_route['destination'] == "0.0.0.0/0":
gw_ip = host_route['nexthop']
break
if gw_ip: # 设置默认网关IP
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
#ip netns exec qlbaas-3195b1f3-a453-4c35-a4a2-aa63b2678765 route add default gw 11.11.11.1
# When delete and re-add the same vip, we need to # 当删除或重添加同样的vip时，我们需要发送gratuitous ARP
# send gratuitous ARP to flush the ARP cache in the Router.
gratuitous_arp = self.conf.haproxy.send_gratuitous_arp
if gratuitous_arp > 0:
for ip in port['fixed_ips']:
cmd_arping = ['arping', '-U',
'-I', interface_name,
'-c', gratuitous_arp,
ip['ip_address']]
ip_wrapper.netns.execute(cmd_arping, check_exit_code=False)
def _plug_instance_port(self, namespace, port, reuse_existing=True):
#RPC to update db for vip information
self.plugin_rpc.plug_vip_port(port['id'])
devices_added = set()
devices_added.add(port['id'])
interface_name = self.vif_driver.get_device_name(Wrap(port))
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
else:
self.vif_driver.plug(port['network_id'],
port['id'],
interface_name,
port['mac_address'],
namespace=namespace)
LOG.debug(
_(' _plug_instance_port for %(port)s fixed_ips %(fixed_ips)s '), {
'port': port,
'fixed_ips': port['fixed_ips']
})
cidrs = [
'%s/%s' % (ip['ip_address'], netaddr.IPNetwork(
ip['subnet']['cidr']).prefixlen) for ip in port['fixed_ips']
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
gw_ip = port['fixed_ips'][0]['subnet'].get('gateway_ip')
if not gw_ip:
host_routes = port['fixed_ips'][0]['subnet'].get('host_routes', [])
for host_route in host_routes:
if host_route['destination'] == "0.0.0.0/0":
gw_ip = host_route['nexthop']
break
if gw_ip:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
# When delete and re-add the same vip, we need to
# send gratuitous ARP to flush the ARP cache in the Router.
gratuitous_arp = self.conf.haproxy.send_gratuitous_arp
if gratuitous_arp > 0:
for ip in port['fixed_ips']:
cmd_arping = [
'arping', '-U', '-I', interface_name, '-c',
gratuitous_arp, ip['ip_address']
]
ip_wrapper.netns.execute(cmd_arping, check_exit_code=False)
self.setup_port_filters(devices_added)
def _plug(self, namespace, port, vip_address, reuse_existing=True):
self.plugin_rpc.plug_vip_port(port.id)
interface_name = self.vif_driver.get_device_name(port)
if ip_lib.device_exists(interface_name,
namespace=namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name
)
else:
self.vif_driver.plug(
port.network_id,
port.id,
interface_name,
port.mac_address,
namespace=namespace
)
cidrs = [
'%s/%s' % (ip.ip_address,
netaddr.IPNetwork(ip.subnet.cidr).prefixlen)
for ip in port.fixed_ips
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
# Haproxy socket binding to IPv6 VIP address will fail if this address
# is not yet ready(i.e tentative address).
if netaddr.IPAddress(vip_address).version == 6:
device = ip_lib.IPDevice(interface_name, namespace=namespace)
device.addr.wait_until_address_ready(vip_address)
gw_ip = port.fixed_ips[0].subnet.gateway_ip
if not gw_ip:
host_routes = port.fixed_ips[0].subnet.host_routes
for host_route in host_routes:
if host_route.destination == "0.0.0.0/0":
gw_ip = host_route.nexthop
break
else:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
# When delete and re-add the same vip, we need to
# send gratuitous ARP to flush the ARP cache in the Router.
gratuitous_arp = self.conf.haproxy.send_gratuitous_arp
if gratuitous_arp > 0:
for ip in port.fixed_ips:
cmd_arping = ['arping', '-U',
'-I', interface_name,
'-c', gratuitous_arp,
ip.ip_address]
ip_wrapper.netns.execute(cmd_arping, check_exit_code=False)
def setup(self, network, reuse_existing=False):
"""Create and initialize a device for network's DHCP on this host."""
port = self.setup_dhcp_port(network)
interface_name = self.get_interface_name(network, port)
if self.conf.use_namespaces:
namespace = NS_PREFIX + network.id
else:
namespace = None
if ip_lib.device_exists(interface_name,
self.root_helper,
namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
LOG.debug(_('Reusing existing device: %s.'), interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address,
namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = '%s/%s' % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
if (self.conf.enable_isolated_metadata and
self.conf.use_namespaces):
ip_cidrs.append(METADATA_DEFAULT_IP)
self.driver.init_l3(interface_name, ip_cidrs,
namespace=namespace)
# ensure that the dhcp interface is first in the list
if namespace is None:
device = ip_lib.IPDevice(interface_name,
self.root_helper)
device.route.pullup_route(interface_name)
if self.conf.use_namespaces:
self._set_default_route(network)
return interface_name
def _plug(self, context, namespace, port, reuse_existing=True):
self._plug_vip_port(context, port)
interface_name = self.vif_driver.get_device_name(port)
if ip_lib.device_exists(interface_name, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
else:
self.vif_driver.plug(port.network_id,
port.id,
interface_name,
port.mac_address,
namespace=namespace)
self._populate_subnets(context, port)
cidrs = [
'%s/%s' %
(ip.ip_address, netaddr.IPNetwork(ip.subnet['cidr']).prefixlen)
for ip in port.fixed_ips
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
gw_ip = port.fixed_ips[0].subnet.get('gateway_ip')
if not gw_ip:
host_routes = port.fixed_ips[0].subnet.get('host_routes', [])
for host_route in host_routes:
if host_route['destination'] == "0.0.0.0/0":
gw_ip = host_route['nexthop']
break
if gw_ip:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
# When delete and re-add the same vip, we need to
# send gratuitous ARP to flush the ARP cache in the Router.
gratuitous_arp = self.conf.haproxy.send_gratuitous_arp
if gratuitous_arp > 0:
for ip in port.fixed_ips:
cmd_arping = [
'arping', '-U', '-I', interface_name, '-c',
gratuitous_arp, ip.ip_address
]
ip_wrapper.netns.execute(cmd_arping, check_exit_code=False)
