This change allows for docker buildx to be used to build container
images. This also allows multi-arch images being built.
In addition to using docker buildx to build images, regctl as a
replacement for the docker push command to release images. This
tool also supports regctl.
The selection of docker buildx (and regctl) is controlled by a
BUILD_MULTI_ARCH_IMAGES make variable. If this is 'true',
the build-% make targets for the toolkit container will be
run through buildx and the equivalent push-% targets will trigger
a regctl command.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
This change make the following version bumps:
* nvidia-container-toolkit to 1.8.1
* nvidia-contianer-runtime to 3.8.1
* nvidia-docker to 2.9.1
Signed-off-by: Evan Lezar <elezar@nvidia.com>
