golang:1-alpine image no longer has git

[klmitch]

It appears that an upstream change to the alpine container has caused git to no longer come pre-installed. This has broken go within the golang:1-alpine image, as it uses git to implement go get, and presumably other commands. The Dockerfile-alpine.template should be updated to ensure git is installed.

[tianon]

I'm not sure where you're seeing that Alpine used to include git by default? Our golang:alpine image has never included git, and that's intentional (#250 (comment); #119, #140, #153, #157, #166, #198, #209, #230, #239, #241, #251, #328).

[tianon]

#347 (comment) 👍

(Closing in favor of the discussion on #345)