Alpine Linux support for Tianji reporter service

[SKJoy]

First of all, WONDERFUL tool :) Thank you so much.

The automatic command for Tianji reporter installer failed with Alpine Linux hosts! They had curl, sudo & bash installed. It worked fine for RHEL & Debian systems.

Due to performance and resource footprint, a lot of Alpine Linux based hosts are deployed, especially as Docker hosts.

Will you be kind enough to add support for Alpine Linux too, or at least an easy-peasy HOW TO for beginners like me :)

TiA - Joy