This abstracts away the manifest instantiation. The idea is that we define one
of these image kind types to represent a group of image types that are
sufficiently similar. Each image kind will have a struct with with all the
properties that can be customised for the image and a function to turn that into
an actual manifest. This is similar to how distro/fedora/manifest.go and
cmd/osbuild-playground works today, and aspires to move these closer together
and to eventually make the distro definitions simpler.
For now cmd/osbuild-playground is moved over to using the new abstraction.
This is meant to encapsulate the tweaks we do to the OS tree
orthogonally to anything else. For now it still contains some
configuration that only sometimes applies, but this should
continue being reworked until all the fields in this struct
always apply to any artefact that is using it.
At the same time, stop instantiating with default values, as the
empty values should work. This is not a functional change as the
caller always sets these now.
We have three kinds of operating system trees, until we unify them to one,
hide them behind one interface. Use this to read the architecture from the
Tree rather than pass it in as a string to parent pipelines.
Also, make the filename parameter optional in a few places, there should be no
reason to set this rather than introspect it (except for backwards
compatibility).
Lastly, add another playground example sample to build a raw image.
For now all it does is represent the name of the runner and what requirements
it has of the build pipeline.
Move some package definitions from the runner package set to where it belongs.
These objects describes the hardware an image runs on. Including
- architecture
- bootloader
- required firmware
Use the platform abstraction to move firmware packages out of the package set
definitions.
The kernel name is optional and can be set later.
The bootloader we skip entirely. Instead, set the architecture, which now becomes
mandatory. Use it to deduce the bootloader, and in the future other pipelines can read
this property from the OS Pipeline, rather than having it passed in.
These should both default to being disabled, so move them away from the constructor.
Rename grubLegacy to BIOSPlatform and document that setting it enables BIOS support.
The OSTree parameters can be set after initialisation. We should only require parameters
to be set at initialisation time if we have no good defaults. In the case of OSTree the
default is to not enable OSTree support.
This is meant for rapid prototyping of single image types and for
osbuild development, as an alternative to osbuild-mpp. The same
primitives are used as in the image definitions, but without any
policy or inheritance applied.
The user is expected to only edit `playground.go` and then run
the tool to produce osbuild manifests.
