I was developing something similar with effe[1] e effe-tool[2], the idea is similar.

You wrote your service in go following in such a way that it expose 3 function and it get compiled down to a single binary, then you can dockerize your application (images usually are smaller than 6MB) and deploy it, wherever and whenever you want.

Of course everything is open source.

I explained it a little better here: http://redbeardlab.tech/2016/03/05/effe.html

[1]: https://github.com/siscia/effe

[2]: https://github.com/siscia/effe-tool