The push-* command skips rebuild and image push w/ latest tag when a image
tag exists remotely. Most of gVisor test images have never got a chance to be
tagged because they already exist when DOCKER_PUSH_AS_LATEST was introduced.
We shouldn't enable DOCKER_FORCE_PUSH in our pipelines, it is better to be a
one off tool when the latest tag of an image is missing from remote repos.
Allow DOCKER_FORCE_PUSH for test images.
The push-* command skips rebuild and image push w/
latesttag when a image tag exists remotely. Most of gVisor test images have never got a chance to be tagged because they already exist whenDOCKER_PUSH_AS_LATESTwas introduced.We shouldn't enable DOCKER_FORCE_PUSH in our pipelines, it is better to be a one off tool when the
latesttag of an image is missing from remote repos.