准备四台主机
首先都关闭防火墙
systemctl stop firewalld
setenforce 0
iptables -F
第一台主机
#安装keepalived
[root@localhost ~]# yum -y install keepalived
#安装nginx
[root@localhost ~]# yum -y install nginx
#keepalived配置文件
[root@localhost ~]# vim /etc/keepalived/keepalived.conf
! 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 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
vrrp_skip_check_adv_addr
vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_script check_nginx { #引入脚本文件
script "/shell/nginx_check.sh"
interval 2
weight -20
}
vrrp_instance VI_1 {
state MASTER #主
interface eno16777728 #心跳网卡
virtual_router_id 51
priority 100 #优先级
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.200.254
}
track_script {
check_nginx #引用脚本
}
}
安装nginx
[root@localhost ~]# yum -y install gcc gcc-c++ make pcre-devel zlib-devel
[root@localhost~]# useradd -M -s /sbin/nologin nginx
[root@localhost~]# tar xf nginx-1.6.2.tar.gz -C /usr/src
[root@localhost~]# cd /usr/src/nginx-1.6.2
[root@localhost nginx-1.6.2]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx && make && make install
[root@localhost ~]# vim /usr/local/nginx/conf/nginx.conf
31 keepalive_timeout 65;
32 upstream httpd1 {
33 server 192.168.200.14:80 weight=1;
34 server 192.168.200.15:80 weight=2;
35 }
46 location / {
47 root html;
48 proxy_pass http://httpd1;
49 proxy_set_header Host $host;
50 }
[root@localhost ~]# nginx
第二台主机
从keepalived设置
#安装keepalived
[root@localhost ~]# yum -y install keepalived
#安装nginx
[root@localhost ~]# yum -y install nginx
______________________________________________________________
#keepalived配置文件
[root@localhost ~]# vim /etc/keepalived/keepalived.conf
! 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 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
vrrp_skip_check_adv_addr
vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_script check_nginx {
script "/shell/nginx_check.sh"
interval 2
weight -20
}
vrrp_instance VI_1 {
state BACKUP
interface eno16777728
virtual_router_id 51
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.200.201
}
track_script {
check_nginx
}
}
安装nginx
[root@localhost ~]# yum -y install gcc gcc-c++ make pcre-devel zlib-devel
[root@localhost~]# useradd -M -s /sbin/nologin nginx
[root@localhost~]# tar xf nginx-1.6.2.tar.gz -C /usr/src
[root@localhost~]# cd /usr/src/nginx-1.6.2
[root@localhost nginx-1.6.2]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx && make && make install
[root@localhost ~]# vim /usr/local/nginx/conf/nginx.conf
31 keepalive_timeout 65;
32 upstream httpd1 {
33 server 192.168.200.14:80 weight=1;
34 server 192.168.200.15:80 weight=2;
35 }
46 location / {
47 root html;
48 proxy_pass http://httpd1;
49 proxy_set_header Host $host;
50 }
[root@localhost ~]# nginx
四、nginx_check.sh shell文件，配置为周期性任务
#!/bin/bash
count="$(ps -C nginx --no-header|wc -l)"
if [ $count -eq 0 ];then
systemctl restart nginx
sleep 2
if [ ps -c nginx --no-header|wc -l -eq 0 ];then
systemctl stop keepalived
fi
fi
#配置周期任务不再演示
第三台主机
首先安装nginx1
[root@localhost ~]# yum -y install gcc gcc-c++ make pcre-devel zlib-devel
[root@localhost~]# useradd -M -s /sbin/nologin nginx
[root@localhost~]# tar xf nginx-1.6.2.tar.gz -C /usr/src
[root@localhost~]# cd /usr/src/nginx-1.6.2
[root@localhost nginx-1.6.2]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx && make && make install
[root@localhoost nginx-1.6.2]# cd /usr/local/nginx/html/
[root@localhost html]# echo "11111" > index.html
[root@localhost html]# /usr/local/nginx/sbin/nginx
[root@localhost html]# netstat -anpt |grep nginx
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 4503/nginx
第四台
安装nginx2,同nginx1搭建方式一样
与Nginx1唯一不同的是：
[root@localhost html]# echo "22222" > index.html
测试浏览器
