neutron routers HA 实验
测试环境：
5个节点(( controller,2 network,2 compute nodes))
采用VXLAN+Linux Bridge
1. 确定所有的neutron和nova服务都在运行
Nova service-list
Neutron agent-list
2. 创建2个networks
a) neutron net-create private neutron subnet-create –name private-subnet private 10.0.0.0/29 b) neutron net-create private1 neutron subnet-create –name private1-subnet private1 10.0.1.0/29
3. 创建一个共享的public网络连接到物理网络physnet1
Neutron net-create –shared public –router:external=True –provide:network_type flat –provider:physical_network physnet1 Neutron subnet-create –name public-subnet public –allocation-pool start 172.16.0.33,end-172.16.0.66 –gateway=172.16.0.5 –enable-dhcp=False 172.16.0.0/24
4. 创建一个router，–distributed为 False， –ha 为True
Neutron router-create MyRouter –distributed False –ha True
5. 把private和private1加入到MyRouter，并设置router的网关到public网络
Neutron router-interface-add MyRouter private-subnet Neutron router-interface-add MyRouter private1-subnet Neutron router-gateway-set MyRouter public
6. 查看各种节点上的namespace
7. Open ICMP 和port 22 in security group
Neutron security-group-rule-create –protocol icmp –direction ingress default Neutron security-group-rule-create –protocol tcp –port-range-min 22 –port-range-max 22 –direction ingress default
8. 启动VMs
nova boot –image cirros-qcow2 –flavor 1 –nic net-id=<private net is> private one nova boot –image cirros-qcow2 –flavor 1 –nic net-id=<private net is> private two nova boot –image cirros-qcow2 –flavor 1 –nic net-id=<private1 net is> private1 three nova boot –image cirros-qcow2 –flavor 1 –nic net-id=<private1 net is> private1 four
9. Neutron port-list
10. Add floating IP
网络节点上：
Neutron floatingip-create –port-id=<port ID>
11. Neutron net-list
注意：HA network已经自动创建了。如何创建的
12. Keepalived用来监控每个HA router，VIP会随着master failes而移动
Ssh networknode Less /var/lib/neutron/ha_confs/router_UUDI/keepalived.conf Less /var/lib/neutron/ha_confs/router_UUDI/state
13. 看看qrouter namespace中VIP在那个node上
Networknode1$ Ip netns exec qrouter-id ip a Networknode2$ Ip netns exec qrouter-id ip a
14. Down 所有active router上的interfaces,VIP移动到了另外的node上了。（router不能直接down掉？）
Ip netns exec qgouter-id ip link set dev qg-id down Ip netns exec qrouter-id ip link set dev qg-id down Ip netns exec ha-id ip link set dev qg-id down
15. Up 刚才down了接口，VIP没有移动
注意：由于bug1365476, HA routers在L2 pop的情况下不工作。（VXLAN不works）
