操作系统 RHEL 7.2，openstack 版本 - kilo。我有 4 个节点：控制器、网络、计算和块存储。
我遇到了一些问题。当我在 Horizon 上创建实例时，它获取了 IP，但在网络节点中未创建 tap*-interfaces。我查看了 neutron 和 nova 日志，没有错误。nova 和 neutron 的配置文件是默认的。我根据 kilo 的官方手册 (install-guide) 设置了它们。
网络节点上的 ip a：
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:09:c4:60 brd ff:ff:ff:ff:ff:ff
inet 172.28.3.105/24 brd 172.28.3.255 scope global ens192
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe09:c460/64 scope link
valid_lft forever preferred_lft forever
3: ens224: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:09:c4:6a brd ff:ff:ff:ff:ff:ff
inet 10.10.30.1/16 brd 10.10.255.255 scope global ens224
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe09:c46a/64 scope link
valid_lft forever preferred_lft forever
4: ens256: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP qlen 1000
link/ether 00:0c:29:09:c4:74 brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fe09:c474/64 scope link
valid_lft forever preferred_lft forever
5: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
link/ether ee:df:b1:25:79:e7 brd ff:ff:ff:ff:ff:ff
6: br-tun: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
link/ether 1a:ab:4c:9e:ca:42 brd ff:ff:ff:ff:ff:ff
8: br-int: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
link/ether ea:90:62:a0:5f:43 brd ff:ff:ff:ff:ff:ff
9: br-ex: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
link/ether 00:0c:29:09:c4:74 brd ff:ff:ff:ff:ff:ff
ovs-vsctl 显示：
3c70ed9e-44f1-4fc7-99b5-69175fd0738e
Bridge br-ex
Port br-ex
Interface br-ex
type: internal
Port phy-br-ex
Interface phy-br-ex
type: patch
options: {peer=int-br-ex}
Port "ens256"
Interface "ens256"
Bridge br-tun
fail_mode: secure
Port br-tun
Interface br-tun
type: internal
Port "gre-0a0a1e02"
Interface "gre-0a0a1e02"
type: gre
options: {df_default="true", in_key=flow, local_ip="10.10.30.1", out_key=flow, remote_ip="10.10.30.2"}
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port "gre-0a0a1e03"
Interface "gre-0a0a1e03"
type: gre
options: {df_default="true", in_key=flow, local_ip="10.10.30.1", out_key=flow, remote_ip="10.10.30.3"}
Port "gre-0a0a1e04"
Interface "gre-0a0a1e04"
type: gre
options: {df_default="true", in_key=flow, local_ip="10.10.30.1", out_key=flow, remote_ip="10.10.30.4"}
Bridge br-int
fail_mode: secure
Port int-br-ex
Interface int-br-ex
type: patch
options: {peer=phy-br-ex}
Port "tape0c64f84-38"
tag: 1
Interface "tape0c64f84-38"
type: internal
Port br-int
Interface br-int
type: internal
ovs_version: "2.5.0"
中子网络显示int-net：
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | a7cad61c-f1d5-4093-9278-d607ecb55d25 |
| mtu | 0 |
| name | int-net |
| provider:network_type | gre |
| provider:physical_network | |
| provider:segmentation_id | 29 |
| router:external | False |
| shared | False |
| status | ACTIVE |
| subnets | 93899c4c-f343-45fc-8bc4-5d9fd0740d6c |
| tenant_id | a8c7d88dc47b4af6a3214ebef41db2d7 |
+---------------------------+--------------------------------------+
新星名单：
+--------------------------------------+-------+--------+------------+-------------+---------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------+--------+------------+-------------+---------------------+
| 26965f32-0fd7-4494-ae93-02a82d550b31 | test3 | ACTIVE | - | Running | int-net=192.168.3.9 |
+--------------------------------------+-------+--------+------------+-------------+---------------------+
网络节点上的 neutron.conf：
[DEFAULT]
verbose = True
core_plugin = ml2
service_plugins = router
auth_strategy = keystone
allow_overlapping_ips = True
rpc_backend=rabbit
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = DataPasbaSEWort692
[oslo_concurrency]
lock_path = $state_path/lock
[oslo_messaging_rabbit]
rabbit_hosts = 172.28.3.102:$rabbit_port,172.28.3.107:$rabbit_port
rabbit_userid = openstack
rabbit_password = openstack
网络节点上的 ml2.conf：
[ml2]
type_drivers = flat,vlan,gre,vxlan
tenant_network_types = gre
mechanism_drivers = openvswitch
[ml2_type_flat]
flat_networks = external
[ml2_type_gre]
tunnel_id_ranges = 1:1000
[securitygroup]
enable_security_group = True
enable_ipset = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[ovs]
local_ip = 10.10.30.1
bridge_mappings = external:br-ex
[agent]
tunnel_types = gre
l3-代理：
[DEFAULT]
verbose = True
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
external_network_bridge =
router_delete_namespaces = True