shell脚本部署nginx

编译安装nginx

首先创建一个目录，用来存放脚本

[root@localhost ~]# mkdir /nginx
[root@localhost ~]# cd /nginx/
[root@localhost nginx]# chmod +x nginx.sh  //赋予脚本的执行权限

下载安装nginx的安装包
可以去nginx官网下载相应版本的tar包

[root@localhost nginx]# wget https://nginx.org/download/nginx-1.20.1.tar.gz

在同级目录创建一个放安装包的目录

[root@localhost nginx]# mkdir packages/
[root@localhost packages]# ls
nginx-1.20.1.tar.gz

创建脚本文件

[root@localhost nginx]# touch nginx.sh

编写脚本

[root@localhost nginx]# cat nginx.sh
#!/bin/bash
route=/usr/local
server=/usr/lib/systemd/system

id nginx &>/dev/null  //判断是否有nginx用户，没有就创建用户
if [ $? -ne 0 ];then
 useradd -r -M -s /sbin/nologin nginx
fi

yum -y install pcre-devel pcre gcc gcc-c++ openssl-devel zlib zlib-devel make vim wget openssl openssl-devel gd-devel  //解决依赖关系
mkdir /var/log/nginx
chown -R nginx.nginx /var/log/nginx
if [ ! -d $route/nginx-1.20.1 ];then  
    tar xf packages/nginx-1.20.1.tar.gz -C $route  //解压到/usr/local
fi

cd $route/nginx-1.20.1
if [ ! -d $route/nginx ];then  //若没有nginx目录就进行进行编译
    ./configure --prefix=/usr/local/nginx \
        --user=nginx \
        --group=nginx \
        --with-debug \
        --with-http_ssl_module \
        --with-http_realip_module \
        --with-http_image_filter_module \
        --with-http_gunzip_module \
        --with-http_gzip_static_module \
        --with-http_stub_status_module \
        --http-log-path=/var/log/nginx/access.log \
        --error-log-path=/var/log/nginx/error.log
    make && make install
fi

cd $server  //配置service文件使用systemctl控制nginx
cat > nginx.service << EOF
[Unit]
Description=Nginx server daemon
After=network.target 

[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx 
ExecStop=/usr/local/nginx/sbin/nginx -s quit
ExecReload=/bin/kill -HUP \$MAINPID

[Install]
WantedBy=multi-user.target
EOF

echo 'export PATH=/usr/local/nginx/sbin:$PATH' > /etc/profile.d/nginx.sh  //配置环境变量
bash /etc/profile.d/nginx.sh  //重新加载生效

systemctl daemon-reload
systemctl enable --now nginx.service
if [ $? -eq 0 ];then
    echo "nginx is ok"
else
    echo "nginx is error"
fi
开机自启成功就输出nginx is ok，否则就输出nginx is error。