Given a list of arches, koji can build multiple images in one go
(automatically starting children tasks for each one).
This causes a bunch of changes:
* The configuration no longer allows changing config based on
architecture, only variants are allowed. It is however possible to
filter which arches are used for the building in the variant.
* The configuration files for koji image-build are stored in
work/image-build/$variant (not split based on arch).
This patch also changes the option name that is passed to koji
image-build: the repos should be specified under key `repo` (without the
trailing slash).
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
The computation of image name has been moved to a separate function.
This allowed simplification in how work dir for isos is computed, but
the result is not changed.
The live image phase has some special casing for names of RPM wrapped
ISOs. This is moved to the actual phase. Since this is (and has been)
undocumented, there should not be many users of this special case.
The documentation is updated to describe how image names and volume ids
are determined and how the process can be customized.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>