James E. Blair a546e25e76 Delete change tags from docker image repos
Whenever we promote an image, delete the change tag for that image
in Docker Hub, and also delete any change tags older than 24 hours
in order to keep the Docker Hub image registry tidy.

Change-Id: Id4654c893963bdb0a364b1132793fe4fb152bf27
2019-01-14 16:51:13 -08:00
..
2018-12-14 11:30:47 -08:00