Configure the VIP & HAProxy

[root@controller1 ~]# pcs resource create vip ocf:heartbeat:IPaddr2 ip="192.168.220.20" cidr_netmask="24" op monitor interval="30s"

[root@controller ~]# yum install haproxy httpd -y

[root@controller1 ~]# cp /etc/haproxy/haproxy.cfg{,.bak}

[root@controller1 ~]# diff /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak

87,99d86

< listen stats  

<       bind 0.0.0.0:1080 

<       mode http

<       option httplog

<       log 127.0.0.1 local0 err  

<       maxconn 10

<       stats refresh 30s

<       stats uri /admin

<       stats realm Haproxy\ Statistics

<       stats auth admin:admin

<       stats hide-version

<       stats admin if TRUE

< 

[root@controller1 ~]# scp /etc/haproxy/haproxy.cfg [email protected]:/etc/haproxy/haproxy.cfg

[root@controller1 ~]# scp /etc/haproxy/haproxy.cfg [email protected]:/etc/haproxy/haproxy.cfg

[root@controller ~]# echo "net.ipv4.ip_nonlocal_bind = 1" >>/etc/sysctl.conf

[root@controller ~]# sysctl -p

net.ipv4.ip_nonlocal_bind = 1

[root@controller1 ~]# pcs resource create lb-haproxy systemd:haproxy --clone

[root@controller1 ~]# pcs constraint order start vip then lb-haproxy-clone kind=Optional

Adding vip lb-haproxy-clone (kind: Optional) (Options: first-action=start then-action=start)

[root@controller1 ~]# pcs constraint colocation add lb-haproxy-clone with vip

[root@controller1 ~]# echo '#RabbitMQ

> listen RabbitMQ-Server

> bind controller:5673

> mode tcp

> balance roundrobin

> option tcpka

> timeout client  3h

> timeout server  3h

> option          clitcpka

> server controller1 controller1:5672 check inter 5s rise 2 fall 3

> server controller2 controller2:5672 check inter 5s rise 2 fall 3

> server controller3 controller3:5672 check inter 5s rise 2 fall 3

> 

> listen RabbitMQ-Web

> bind controller:15673

> mode tcp

> balance roundrobin

> option tcpka

> server controller1 controller1:15672 check inter 5s rise 2 fall 3

> server controller2 controller2:15672 check inter 5s rise 2 fall 3

> server controller3 controller3:15672 check inter 5s rise 2 fall 3

> '>>/etc/haproxy/haproxy.cfg

[[email protected] ~]# 

[[email protected] ~]# systemctl restart haproxy.service