准备操作:
[root@localhost ~]# systemctl stop firewalld # 或 systemctl disable --now firewalld
[root@localhost ~]# setenforce 0
[root@localhost ~]# cd /etc/yum.repos.d
[root@localhost ~]# mv repo.bak/* ./
[root@localhost ~]# yum -y install epel-release
[root@localhost ~]# yum install -y keepalived nginx
#epel下载的旧版nginx 没有stream模块,只有动态stream模块
![]()
两台都需要配置:
[root@localhost ~]# vim /etc/nginx/nginx.conf
在include /etc/nginx/conf.d/*.conf; 下面添加
upstream web_server {
server 192.168.179.22:80;
server 192.168.179.23:80;
}
在server块中 include下添加location
location ~ /test {
proxy_pass http://web_server;
}
[root@localhost ~]# nginx -t
[root@localhost ~]# systemctl start nginx
[root@localhost ~]# systemctl enable nginx
客户端:curl 192.168.179.22/test/test.html curl 192.168.179.23/test/test.html
----------------配置keepalived------------------------
[root@localhost ~]# cd /etc/keepalived
[root@localhost ~]# vim nginx.sh
#!/bin/bash
if ! killall -0 nginx &> /dev/null ;then
systemctl stop keepalived
fi
[root@localhost ~]# chmod +x nginx.sh
[root@localhost ~]# cp keepalived.conf keepalived.bak
[root@localhost ~]# vim keepalived.conf
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id NGINX_01
}
vrrp_script check_nginx {
script "/etc/keepalived/nginx.sh"
interval 2 #2秒做一次健康检查
weight 2
}
vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress
192.168.179.188
}
track_script {
check_nginx
}
}
! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id LVS_01
}
vrrp_script check_nginx {
script "/etc/keepalived/nginx.sh"
interval 2
weight 2
}
vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.179.188
}
track_script {
check_nginx
}
}
[root@localhost ~]# scp keepalived.conf nginx.sh 192.168.179.21:`pwd`
在192.168.179.21上
修改/etc/keepalived/keepalived.conf
router_id NGINX_02
state BACKUP
priority 90
! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id LVS_02
}
vrrp_script check_nginx {
script "/etc/keepalived/nginx.sh"
interval 2
weight 2
}
vrrp_instance VI_1 {
state BACKUP
interface ens33
virtual_router_id 51
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.179.188
track_script {
check_nginx
}
}
wq! 保存退出
#ifdown停掉两台web服务器的lo:0
[root@localhost ~]# ifconfig
[root@localhost ~]# ifdown lo:0
[root@localhost ~]# ifconfig
[root@localhost ~]# systemctl status nginx
[root@localhost ~]# systemctl start keepalived.service
[root@localhost ~]# systemctl enable keepalived.service
客户端访问:http://192.168.179.188/test/test.html文章来源:https://www.toymoban.com/news/detail-429782.html
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