Centos - HAproxy + nginx

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########server2에서...###########

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[root@server2 ~]# dnf install haproxy

[root@server2 haproxy]# cp haproxy.cfg haproxy.old

[root@server2 haproxy]# setsebool -P haproxy_connect_any 1   //hpproxy 허용

[root@server2 haproxy]# firewall-cmd --permanent --add-port=80/tcp
[root@server2 haproxy]# firewall-cmd --reload

 

[root@server2 haproxy]# vi haproxy.cfg

#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------

frontend http_balancer
    bind 192.168.10.210:80
    option http-server-close
    option forwardfor
    stats uri /haproxy?stats
     default_backend             app

 

#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------

backend app

    mode http

    balance     roundrobin

    option httpchk HEAD / HTTP/1.1\r\nHost:\ localhost

    server  server3.example.com 192.168.10.220:80 check

    server  server4.example.com 192.168.10.230:80 check

 

 

[root@server2 haproxy]# systemctl enable haproxy

[root@server2 haproxy]# systemctl restart haproxy 

[root@server2 haproxy]# systemctl status haproxy

 

 

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########server3에서...###########

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[root@server3 ~]# dnf -y install nginx

[root@server3 ~]# systemctl start nginx
[root@server3 ~]# systemctl enable nginx

 

[root@server3 html]# vi index.html

<p> first server.....</p>

 

[root@server3 ~]# cd /usr/share/nginx/html/

[root@server3 html]# firewall-cmd --permanent --add-service=http
[root@server3 html]# firewall-cmd --reload

 

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########server4에서...###########

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[root@server4 ~]# dnf -y install nginx 

[root@server4 ~]# systemctl start nginx 
[root@server4 ~]# systemctl enable nginx 

 

[root@server4 ~]# cd /usr/share/nginx/html/

[root@server4 html]# vi index.html

<p> second server.....</p>

 

[root@server4 html]# firewall-cmd --permanent --add-service=http 
[root@server4 html]# firewall-cmd --reload 

 

==============================================

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######## test 하기 ###########

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반복 리프레시 하기

first server..... 와 second server.... 가 반복적으로 바뀜