使用HAPROXY和KEEPALIVED负载均衡简单示例

2018-12-09 约 277 字预计阅读 1 分钟

防火墙配置

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firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --reload

指定自己需要开放的端口来替换80/tcp

安装配置Keepalived

两个节点安装Keepalived
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yum -y install keepalived

编辑Keepalived配置文件

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vim /etc/keepalive/keepalived.conf

内容如下：

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vrrp_script chk_haproxy {
  script "killall -0 haproxy" ## check the haproxy process
  interval 2 ## every 2 seconds
  weight 2 ## add 2 points if OK
}

vrrp_instance VI_1 {
  interface eth0 ## interface to monitor
  state MASTER ## MASTER on haproxy, BACKUP on haproxy2
  virtual_router_id 51
  priority 101 ## 101 on haproxy, 100 on haproxy2
  virtual_ipaddress {
    192.168.0.100 ## virtual ip address
  }
  track_script {
    chk_haproxy
  }
}

启动服务：

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systemctl enable keepalived ; systemctl start keepalived

安装配置HAProxy

安装HAProxy。
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yum -y install haproxy

配置HAProxy。

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vim /etc/haproxy/haproxy.cfg

内容：

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frontend http_web *:80
    mode http
    default_backend rgw

backend rgw
    balance roundrobin
    mode http
    server  rgw1 10.0.0.71:80 check
    server  rgw2 10.0.0.80:80 check

启动服务：

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systemctl enable haproxy ; systemctl start haproxy

目录

使用HAPROXY和KEEPALIVED负载均衡简单示例

防火墙配置

安装配置Keepalived

安装配置HAProxy