Haproxy配置集群

a. 查看可以安装的版本号
yum list |grep haproxy
b. 在线安装
yum -y install haproxy.x86_64

a. 修改默认用户名
chown -R haproxy:haproxy /etc/haproxy/
b. 更改配置，下面图中注释需要打开
vim /etc/rsyslog.conf

c. 重启日志服务
systemctl restart rsyslog.service 
d. 编辑conf配置文件
vim /etc/haproxy/haproxy.cfg 

frontend mycat
bind 0.0.0.0:8066
bind 0.0.0.0:9066
mode tcp
log global
default_backend mycat_server

backend mycat_server
balance roundrobin
server mycat1 192.168.209.141:8066 check inter 5s rise 2 fall 3
server mycat2 192.168.209.142:8066 check inter 5s rise 2 fall 3
server mycatadmin1 192.168.209.141:9066 check inter 5s rise 2 fall 3
server mycatadmin2 192.168.209.142:9066 check inter 5s rise 2 fall 3
listen stats
mode http bind 0.0.0.0:5000
stats enable
stats hide-version
stats uri /haproxy
stats realm Haproxy\ Statistics
stats auth admin:admin
stats admin if TRUE