tag are not immutable, but images (manifests) are. Much like git commit vs branches/tags. That is why best practice is to resolve docker image tag into "@sha256

tag are not immutable, but images (manifests) are. Much like git commit vs branches/tags. That is why best practice is to resolve docker image tag into "@sha256:..." digest and pull that, instead of tag. It guarantees that image you are pulling stays byte to byte the same.