Nginx 下载对应系统安装的版本

# RHEL/CentOS
Version	            Supported Platforms
6.x                 x86_64, i386
7.4+                x86_64, ppc64le
8.x                 x86_64

# Debian
Version	            Supported Platforms
9.x “stretch”       x86_64, i386
10.x “buster”       x86_64, i386

# Ubuntu
Version	            Supported Platforms
16.04 “xenial”      x86_64, i386, ppc64el, aarch64/arm64
18.04 “bionic”      x86_64, aarch64/arm64
18.10 “cosmic”      x86_64
19.04 “disco”       x86_64

# Alpine
Version	           Supported platforms
3.8                x86_64
3.9                x86_64
3.10               x86_64