nginx安装
1. 前置依赖安装
yum install gcc gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel -y
2. 编译安装nginx
nginx下载地址：
https://nginx.org/en/download.html
## 安装包位置：信息港16.11:/root/shl
tar xvf nginx-1.20.2.tar.gz
tar xvf nginx-module-vts-0.2.2.tar.gz
mv nginx-module-vts-0.2.2 nginx-module-vtscd nginx-1.20.2
#编译时注意修改 nginx-module-vts的路径
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module --with-stream --with-http_v2_module --add-module=/root/nginx-module-vtsmake && make install3.配置systemd启动
cat >> /lib/systemd/system/nginx.service << EOF
[Unit]
Description=nginx service
After=network.target
[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s quit
PrivateTmp=true[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl start nginx
systemctl enable nginx
4. 添加监控
vim /usr/local/nginx/conf/nginx.conf加在http模块:
vhost_traffic_status_zone;加在server模块:location /status {vhost_traffic_status_display;vhost_traffic_status_display_format html;}location /nginx-status {stub_status on;}
5.配置keepalived
yum -y install keepalived
cat /etc/keepalived/keepalived.conf
global_defs {router_id LVS_100
}
vrrp_script check_nginx {script "/etc/keepalived/check_nginx.sh"interval 2weight -20fall 2rise 1
}
vrrp_instance VI_1 {state MASTER ## 另一台修改成BACKUPnopreemptinterface enp4s1 ## 修改为本机的网卡名virtual_router_id 100 ## 两个keepalived一样，可以写成vip后面几位priority 100 ## 另一台优先级修改成50advert_int 1authentication {auth_type PASSauth_pass just0kk}virtual_ipaddress {172.22.143.100/24 ## 修改vip}track_script {check_nginx}
}
6.检测脚本
cat /etc/keepalived/check_nginx.sh
#!/bin/bash
run=`ps -C nginx --no-heading|wc -l`
if [ $run -eq 0 ]; thensystemctl stop keepalived
fi
chmod + x /etc/keepalived/check_nginx.sh
7.测试:
systemctl start keepalived关闭nginx看vip是否漂移
重启nginx和keepalived
