[zimbatm]

Another solution is to build your go executable in a different container and import it into a busybox container. That changes the layering from:

    debian
    add go, bzr, mercurial, python, ...
    build executable

to:

    busybox
    executable

That reduces the amount of data that needs to be downloaded on new boxes by a factor of ten or so.

[voltagex_]

Yeah, that looks good - I'm in Australia so anything that reduces the amount I need to download is excellent.