Move common flag descriptions to the buildx build reference, and make
that page the canonical page in docs. Also rewrite some content in
image_build to make clear that this page is only for the legacy builder.
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
Alias pages redirect to the canonical names, but these pages still
linked to the aliases, causing broken links when building the docs site.
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
This attempts to make it clearer that the --cgroup-parent option is only used
for the containers used during build. Instead of mentioning "build container",
I opted for using "RUN instructions" (to match the --network description),
although this may not be ideal (as it assumes the "Dockerfile" front-end, which
of course may not be the case).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
