Re: [PATCH v6 00/10] Add SBOM generation with debsbom

["'Jan Kiszka' via isar-users" <isar-users@googlegroups.com>]

On 01.12.25 09:58, Felix Moessbauer wrote:
> This patchset adds proper SBOM generation in the two standard formats
> SPDX and CycloneDX during the rootfs generation process.
> 
> The generation is itself is handled by a SBOM generator  `debsbom` [1]
> which is developed as an open source project at Siemens. It is still
> early in development, but it has enough features for what we require
> in isar. The required dependencies which are not yet available as
> Debian packages were minimally packaged directly in isar too.
> 
> This is a followup of the previous RFC [2]. Since then the series has
> changed a lot. The SBOM generation was moved from a simple OE lib to
> `debsbom`. This also meant the introduction of a separate chroot was
> necessary. The SBOM generation process was also moved from the image
> step to the rootfs step, along with a lot of minor changes and
> improvements.
> 
> [1] https://github.com/siemens/debsbom
> [2] https://groups.google.com/g/isar-users/c/8L-CF4BJY0I/m/p0N3o_zfAAAJ
> 
> Changes since v5:
> 
> - fix isar-image-ci on qemuamd64-bullseye (set IMAGER_BOM according to
>   machine changes made in image file)
> - rebased onto next
> 
> Changes since v4:
> 
> - rebased onto next
> - fix race condition on creation of ${DEPLOY_DIR_SBOM} (aka ${DEPLOY_DIR_IMAGE})
> 
> Changes since v3:
> 
> - fix issue on external bullseye initramfs (we now disable sbom generation
>   on all unsupported distros rootfs instances)
> - update debsbom to v0.4.0
> - rebased onto next
> 
> Changes since v2:
> 
> - fix issues when HOST_ARCH != DISTRO_ARCH on derived distributions
> - update debsbom to v0.3.0, which fixes the Origin: bug reported in v2
> - generate SBOM for imager as well and create merged sbom of .wic image
> - resend imager manifest + wic manifest patches to reduce conflicts
> 
> Note, that the patches p1-p5 are most important as they add basic SBOM
> support. The remaining patches address the imager + .wic bom part,
> which also can be merged later on.
> 
> Changes since v1:
> 
> - remove tarball
> - refactor packaging (auto-derive python dependencies)
> - only build missing packages (varies on bookworm, trixie, noble)
> - add ubuntu support
> - only generate sboms for supported distributions (bookworm/jammy and
>   onwards)
> - update debsbom (includes bug fixes and more information for source
>   packages)
> 
> 
> Christoph Steiger (3):
>   meta: package python libraries for SBOM generation
>   meta: package python3-debsbom
>   meta: add SBOM generation with debsbom
> 
> Felix Moessbauer (7):
>   refactor: move get_rootfs_distro from sdk into rootfs
>   override distro vendor in SBOM on Ubuntu
>   add support to add imager dependencies to BOM
>   wic: create uniform manifest describing all image components
>   qemuamd64: add IMAGER_BOM entries
>   imager: create SBOM of IMAGER_BOM packages
>   wic: create uniform SBOM describing all image components
> 
>  doc/user_manual.md                            |  1 +
>  meta-isar/conf/distro/ubuntu-common.inc       |  2 +
>  meta-isar/conf/machine/qemuamd64.conf         |  1 +
>  .../recipes-core/images/isar-image-ci.bb      |  1 +
>  meta/classes/image-tools-extension.bbclass    | 29 +++++++++
>  meta/classes/image.bbclass                    |  7 ++
>  meta/classes/imagetypes_wic.bbclass           | 30 +++++++++
>  meta/classes/initramfs.bbclass                |  3 +-
>  meta/classes/rootfs.bbclass                   | 23 ++++++-
>  meta/classes/sbom.bbclass                     | 65 +++++++++++++++++++

New classes should go into the right category already, then rebasing is
easier for whoever has to do it in the light of
https://patchwork.isar-build.org/project/isar/list/?series=1780. Look at
the dracut series.

Jan

-- 
Siemens AG, Foundational Technologies
Linux Expert Center

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