Currently we only support "xz", but keeping it as a `switch` to easily
support more types in the future.
The empty string is also supported as a no-op.
add the image function and remove the pipeline function.
Remove the build package set.
Parameterise image config creation functions so that RHSM is added
conditionally based on distro name, like we did for AMI/EC2.
image: set the raw filename for the GCE image type
GCP requires that the raw image file inside the archive be named
'disk.raw'. We set it on the imagePipeline while instantiating the
manifest as a workaround for now.
This should be changed to be configurable on the image type when
necessary, the same way the final filename is defined.
Apply "xz" compression to any artifact pipeline if it's specified in the
image type. The image filename should be applied to the pipeline only
if it's the last one, so we need to skip this assignment if we're going
to add a compression pipeline at the end.
This is a bit dirty but the plan is to remove artifact compression from
manifests and perform it during the export in osbuild-composer, so this
should go away soon.
Implement all of Fedora in terms of this new abstraction. What used to be the
manifest functions (and before that the pipeline functions) are now the image
functions, whose purpose is to instantiate the right image kind structs from the
image type definitions we currently have in the distro definition.
