9cbb8c0ac6
The missing "." from the content-type headers was causing us to downgrade image manifests from v1 to to v2 when promoting them. That can cause problems since many tools no longer support v1 manifests. Notably, the docker registry is one of them. Change-Id: I35a5d29933669b80b49578587ebe6db8e13e62ad
Promote one or more previously uploaded docker images.