安裝了docker後，進入此目錄：
cd esp8266
build.sh
compile.sh
這個執行環境裡面已經包含了最新的 espressif 1.2.0版
http://espressif.com/new-sdk-release/
https://github.com/esp8266/esp8266-wiki/wiki/Building
已掛載esp8266的bin與user目錄到容器裡面
因此，只需要執行compile.sh就可以編譯user裡面的源碼，並且編譯出來的韌體會放在bin下面。
Enjoy!
After you install the docker, execute the build.sh script in this repository to build docker image.
I think everything will be ok because docker's magic.
And then you just need compile.sh. This will compile your code in user folder and release binary into bin folder
Refer to the url to build example or even yours!! https://github.com/esp8266/esp8266-wiki/wiki/Building