Neutron HA

===============HA Neutron設定=======================

/etc/neutron/neutron.conf

[Default]

l3_ha = True  開啟ha功能

dhcp_agents_per_network = 2 定義網路中dhcp agent數量

===============以下在Controller執行=======================

neutron router-create –tenant-id $(keystone tenant-list | awk ‘/admin/ {print $2}’) –ha True ha-router 建立ha router

neutron router-interface-add ha-router demo-subnet

neutron router-gateway-set ha-router ext-net

接上內部NAT 以及 Gateway

neutron l3-agent-list-hosting-router ha-router 確認備援列表

net與subnet 會自動建立 HA network tenant 用於router間溝通

for port_id in $(neutron port-list | awk ‘/HA port/ {print $2}’); do neutron port-show ${port_id}; done  用於查看router間詳細溝通狀況

============Network Node============

/var/lib/neutron/ha_confs/ROUTER_ID

keepalived.conf 有詳細router IP與interface資訊

(可以與ip netns exec ROUTER_ID ip addr 做比對)

state 當前router狀態 backup or master

參考資料

Layer 3 High Availability