LVS部署

# 1 拓扑，以5G项目为例
                                              | -- realserver1(master1 18.16)
directory(barria 18.19) --| -- realserver2(node2 18.24)
                                       | -- realserver3(node1 18.22)

# 2 配置
## 2.1 directory(barria)
 （1）add server-ip
net.ipv4.ip_forward = 1      #设置ipv4转发
ip addr add 172.16.18.13/24 dev p7p1      # 为网卡添加服务IP

（2）add server
#for rtmp live
ipvsadm -A -t 172.16.18.13:8090 -s rr     #add virtual service，ip:port即为LVS服务器ip:port
ipvsadm -a -t 172.16.18.13:8090 -r 172.16.18.16:8090 -g    #添加real server的ip:port
ipvsadm -a -t 172.16.18.13:8090 -r 172.16.18.22:8090 -g
ipvsadm -a -t 172.16.18.13:8090 -r 172.16.18.24:8090 -g

#for hls live
ipvsadm -a -t 172.16.18.13:8190 -r 172.16.18.16:8090 -g
ipvsadm -a -t 172.16.18.13:8190 -r 172.16.18.22:8090 -g
ipvsadm -a -t 172.16.18.13:8190 -r 172.16.18.24:8090 -g

#for vod
ipvsadm -A -t 172.16.18.13:80 -s rr
ipvsadm -a -t 172.16.18.13:80 -r 172.16.18.16:80 -g
ipvsadm -a -t 172.16.18.13:80 -r 172.16.18.22:80 -g
ipvsadm -a -t 172.16.18.13:80 -r 172.16.18.24:80 -g

ipvsadm -S             #保存

## 2.2 real server
（1）在每个real server上执行
master1:    ifconfig em1:1 172.16.18.13 netmask 255.255.255.0    #配置别名
node1：    ifconfig em1:1 172.16.18.13 netmask 255.255.255.0
node2：    ifconfig em2:1 172.16.18.13 netmask 255.255.255.0

# 3 其它常用命令
ipvsadm -Ln
ipvsadm -D -t 172.16.18.13:8090         #delete virtual service