This, combined with the effort of caching builder images *and* only
performing the build itself inside the builder images, is the very first
step for reproducible builds for the project.
Reproducible builds are quite important when we talk about Confidential
Containers, as users may want to verify the content used / provided by
the CSPs, and this is the first step towards that direction.
Fixes: #5517
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Let's add the needed infra for only building and pushing the kernel
builder image to the Kata Containers' quay.io registry.
Fixes: #5476
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Let's first try to pull a pre-existing image, instead of building our
own, to be used as a builder image for the kernel.
This will save us some CI time.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
