自动安装Nginx

#!/usr/bin/env python3
# coding:utf-8
# author: Anonymous
# date: 2019-05-18
# 环境：centos7，python3

#导入 os，sys模块
import os,sys


#检查用户是否是root
if os.getuid() != 0:
    print("当前用户不是root，请以root身份执行脚本")
    sys.exit(1)

# 版本号的选择
# http://nginx.org/download/nginx-1.14.2.tar.gz

def_var = '1.14.2'
var = input('请输入版本(默认{}):'.format(def_var))
var = var or def_var

# 安装目录的配置
def_path = '/usr/local/nginx'
path = input('请输入安装目录(默认{}):'.format(def_path))
path = path or def_path

# 如果存在同名文件先删除
if os.path.exists('nginx-{}.tar.gz'.format(var)):
    os.remove('nginx-{}.tar.gz'.format(var))

# 下载源码包
url = 'http://nginx.org/download/nginx-{}.tar.gz'
cmd = 'wget ' + url.format(var)
res = os.system(cmd)
if res != 0:
    print('下载失败')
    sys.exit(1) 

# 解压
cmd = 'tar -zxf nginx-{}.tar.gz'.format(var)
if os.system(cmd) != 0:
    print('解压失败')
    sys.exit(1)

# 安装依赖
cmd = 'yum install -y gcc make libpcre3-dev zlib1g-dev openssl libssl-dev'
if os.system(cmd) != 0:
    print('安装依赖失败')
    sys.exit(1)

# 配置
cmd='cd nginx-{0} && ./configure --prefix={1} --with-http_ssl_module'.format(var,path)
if os.system(cmd) != 0:
    print('配置失败')
    sys.exit(1)

# 编译
cmd='cd nginx-{} && make && make install'.format(var)
if os.system(cmd) != 0:
    print('编译失败')
    sys.exit(1)

print("="*50)
print("\n")
print("\033[0;37;42m\t\tSuccess!\033[0m")
print("\tNginx版本: nginx-{}".format(var))
print("\t安装目录: {}".format(path))
print("\n")
print("="*50)