A small bug from #11941: When we push to GCS, we were pushing bucket
names that matched the old pattern `git describe`, e.g.:
gs://kubernetes-release/ci/v1.1.0-alpha.0-2413-g986d37d/
But after #11941, the binaries inside these actually have versions that look like:
v1.1.0-alpha.0.2413+g986d37d
to more closely match up with semver.
This pull makes the GCS directory match the binaries it's already serving.
This pushes artifacts in a similar manner to the official release,
except that instead of release/vFOO, it goes to ci/$(git describe),
e.g.: gs://kubernetes-release/ci/v0.7.0-315-gcae5722
It also pushes a text file to gs://kubernetes-release/ci/latest.txt,
so anyone can do, for instance:
gsutil ls gs://kubernetes-release/ci/$(gsutil cat gs://kubernetes-release/ci/latest.txt)
(In a parallel change, I'm going to flip the jenkins scripts over to
use git describe, since it's shorter and a little more descriptive)
Isaac Hollander McCreery