有了keepalived可以不用执行ipvsadm了， 并且可以实现自动剔除节点，还可以两台Director做高可用。
手动配置LVS请看内核级负载均衡 LVS DR模式 部署记录
另见：使用Keepalived来实现Nginx高可用
规划：
| 机器 |
IP |
| VIP |
10.0.0.8 |
| director |
10.0.0.40 |
| realserver1 |
10.0.0.42 |
| realserver2 |
10.0.0.43 |
| 网卡interface |
eth0 |
单台Director Server
keepalived 配置：
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| vrrp_sync_group GOP {
group {
VI_PRI_CONNECT
VI_PRI_AUTH
}
}
vrrp_instance VI_PRI_CONNECT {
state BACKUP
interface eth0
virtual_router_id 128
priority 100
advert_int 1
nopreempt
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.8/24 dev eth0
}
}
virtual_server 10.0.0.8 80 {
delay_loop 6
lb_algo rr
lb_kind DR
protocol TCP
real_server 10.0.0.42 80 {
weight 100
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 10.0.0.43 80 {
weight 100
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
|
两台Director Server做主备
规划：
| 机器 |
IP |
| VIP |
10.0.0.8 |
| director 主 |
10.0.0.40 |
| director 备 |
10.0.0.41 |
| realserver1 |
10.0.0.42 |
| realserver2 |
10.0.0.43 |
| 网卡interface |
eth0 |
主Director Server
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| vrrp_sync_group GOP {
group {
VI_PRI_CONNECT
VI_PRI_AUTH
}
}
vrrp_instance VI_PRI_CONNECT {
state MASTER
interface eth0
virtual_router_id 128
priority 110 # 主的权重要设置高一些
advert_int 1
nopreempt
unicast_src_ip 10.0.0.40 # 本机的IP
unicast_peer {
10.0.0.41 # 其他Keepalived机器的IP，可以写多个
}
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.8/24 dev eth0
}
}
virtual_server 10.0.0.8 80 {
delay_loop 6
lb_algo rr
lb_kind DR
protocol TCP
real_server 10.0.0.42 80 {
weight 100
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 10.0.0.43 80 {
weight 100
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
|
备Director Server
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| vrrp_sync_group GOP {
group {
VI_PRI_CONNECT
VI_PRI_AUTH
}
}
vrrp_instance VI_PRI_CONNECT {
state BACKUP
interface eth0
virtual_router_id 128
priority 100
advert_int 1
nopreempt
unicast_src_ip 10.0.0.41 # 本机的IP
unicast_peer {
10.0.0.40 # 其他Keepalived机器的IP，可以写多个
}
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.8/24 dev eth0
}
}
virtual_server 10.0.0.8 80 {
delay_loop 6
lb_algo rr
lb_kind DR
protocol TCP
real_server 10.0.0.42 80 {
weight 100
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 10.0.0.43 80 {
weight 100
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
|
