Shell编写Nginx自动部署脚本

1、功能描述

　　1. 安装支持包，从软件源下载自定义的NGINX包，创建NGINX用户和用户组。

　　2. 安装并初始化NGINX配置。

　　3. 运行NGINX并检测运行状态。

2、实现

　　源码如下：

#!/bin/bash
# eastmoney public tools
# version: v1.0.1
# create by XuHoo, 2016-9-28
#

function environment() {
    if [[ "$USER" != "root" ]]; then
        echo "Current user is not root"
        return 1
    fi
    yum -y install wget curl pcre pcre-devel zlib zlib-devel gcc gcc-c++ &> /tmp/nginx_install.log
    # getUrl: Input download source address
    # getUrl='http://172.16.1.1\nginx-1.8.1.tar.gz'
    wget -P /tmp/ $getUrl/nginx.tar.gz
    grep "nginx" /etc/passwd > /dev/null
    if [[ $? -ne 0 ]]; then  # check user and group
        groupadd nginx
        useradd -M -g nginx -s /sbin/nologin nginx
    fi
    cd /tmp; tar -zxf nginx.tar.gz; cd nginx
    return 0
}; environment; [ $? -ne 0 ] && exit 1
function install() {

# Compile before installation configuration

./configure --prefix=/usr/local/nginx 

--user=nginx --group=nginx 

--with-http_stub_status_module 

&> /tmp/nginx_install.log

if [[ $? -ne 0 ]]; then

return 1

else

# make && make install

make &> /tmp/nginx_install.log

make install &> /tmp/nginx_install.log

if [[ $? -ne 0 ]]; then

return 1

fi

return 0

fi

}; install; [ $? -ne 0 ] && exit 1
function optimize() {

ln -s /usr/local/nginx/sbin/* /usr/local/sbin/ > /dev/null

cp -f /tmp/nginx_control.sh /etc/init.d/nginx

cp -f /tmp/nginx.conf /usr/local/nginx/conf/nginx.conf

# The number of CPU cores current server,

# Amend the "worker_processes" field to the value of the processor

processor=cat /proc/cpuinfo | grep <span style="color: #800000;">"</span><span style="color: #800000;">processor</span><span style="color: #800000;">"</span> | wc -<span style="color: #000000;">l

sed -i "s/^w.*;$/worker_processes  ${processor};/g" /usr/local/nginx/conf/nginx.conf

chmod +x /etc/init.d/nginx

chkconfig --add nginx

retval=chkconfig --level 3 nginx on  # Configure nginx open start service

return $retval

}; optimize; [ $? -ne 0 ] && exit 1
function run() {

# Test nginx.conf file syntax is correct

/etc/init.d/nginx test &> /tmp/nginx_run.log

if [[ $? -ne 0 ]]; then

retval=$?

else  # Start nginx server

/etc/init.d/nginx start &> /tmp/nginx_run.log

if [[ $? -ne 0 ]]; then

retval=$?

fi

fi

return 0

}; run; [ $? -ne 0 ] && exit 1
function check() {

# Modified index.html page content

content=$"deployment on $(date "+%Y-%m-%d %H:%M:%S")"

echo $content > /usr/local/nginx/html/index.html

# View the index.html, and the output of the modified index.html page

/etc/init.d/nginx status

echo -n "Index.html: "; curl http://localhost

}; check