Nginx Web服务器的最大特点在于Nginx常被用于负载均衡、反向代理，单台Nginx服务器配置多个虚拟主机，百台服务器配置N多虚拟主机，基于Shell脚本可以更加高效的配置虚拟主机及添加、管理。本篇知识点主要介绍用Shell脚本实现Nginx自动安装以及虚拟主机的维护，编写思路如下：
- 判断Nginx WEB软件服务是否部署或者运行；
- 支持单个虚拟主机的添加；
- 支持多个虚拟主机添加；
- 支持删除单个虚拟主机或者多个虚拟主机
具体实现脚本：
#!/bin/bash
#2020年3月6日21:28:16
#auto config nginx vhosts
#by author lee
#########################
#Install nginx web
yum install -y wget gzip make tar gcc
yum install -y pcre pcre-devel zlib-devel
wget -c http://nginx.org/download/nginx-1.16.0.tar.gz
tar -xzf nginx-1.16.0.tar.gz
cd nginx-1.16.0
useradd -s /sbin/nologin www -M
./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_stub_status_module
make
make install
/usr/local/nginx/sbin/nginx
ps -ef|grep nginx
netstat -tnlp|grep -w 80
setenforce 0
systemctl stop firewalld.service
#Config nginx vhosts
cd /usr/local/nginx/conf/
\cp nginx.conf nginx.conf.bak
grep -vE "#|^$" nginx.conf >nginx.conf.swp
sed -i '/server/,$d' nginx.conf.swp
echo -e " include vhosts/*;\n}" >>nginx.conf.swp
\cp nginx.conf.swp nginx.conf
mkdir -p vhosts
cd vhosts
cat>v1.jfedu.net<<EOF
server {
listen 80;
server_name v1.jfedu.net;
location / {
root html/v1.jfedu.net;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
EOF
mkdir -p /usr/local/nginx/html/v1.jfedu.net
cat>/usr/local/nginx/html/v1.jfedu.net/index.html<<EOF
<html>
<head>
<title><h1>v1.jfedu.net Test Pages.</h1></title>
</head>
<body>
<hr color=red>
</body>
</html>
EOF
/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reload
