这是一个编译openwrt环境，需要注意的是这里没有包含openwrt的源码，相关源码请自行下载。
镜像下载：
https://hub.docker.com/r/zornlink/openwrt_env
This docker include environment to compile openwrt. note that there is no source for openwrt, please download yourself. see:
https://hub.docker.com/r/zornlink/openwrt_env