Make bootupd metadata generation configurable per distro

Add a configurable option for bootupd metadata generation that allows
distributions to enable it only where the bootupd package is available.

This introduces the bootupd_gen_metadata field in ImageConfig, which
controls whether bootupctl backend generate-update-metadata is run for
ostree commits. Distributions can set this conditionally based on
version to ensure bootupctl is only invoked when bootupd is present.

Signed-off-by: Paul Whalen <[email protected]>

Author: Paul Whalen

data/distrodefs/fedora/imagetypes.yaml

@@ -1101,6 +1101,7 @@ image_types:
     required_partition_sizes: *default_required_dir_sizes
     image_config: &image_config_iot_commit
       <<: *image_config_iot_enabled_services
+      bootupd_gen_metadata: true
       install_weak_deps: false
       dracut_conf:
         - filename: "40-fips.conf"

pkg/distro/generic/images.go

@@ -692,6 +692,11 @@ func iotCommitImage(t *imageType,
 	img.OSTreeParent = parentCommit
 	img.OSVersion = d.OsVersion()
 
+	// Enable bootupd metadata generation if configured
+	if imgConfig.BootupdGenMetadata != nil && *imgConfig.BootupdGenMetadata {
+		img.Bootupd = true
+	}
+
 	return img, nil
 }
 

pkg/distro/image_config.go

@@ -146,6 +146,12 @@ type ImageConfig struct {
 	// This is only supported for distributions that use dnf4, because osbuild
 	// only has a stage for dnf4 version locking.
 	VersionlockPackages []string `yaml:"versionlock_packages,omitempty"`
+
+	// BootupdGenMetadata enables bootupd metadata generation for ostree commits.
+	// When enabled, runs bootupctl backend generate-update-metadata to transform
+	// /usr/lib/ostree-boot into bootupd-compatible update metadata.
+	// Only set this to true if the bootupd package is available in the image.
+	BootupdGenMetadata *bool `yaml:"bootupd_gen_metadata,omitempty"`
 }
 
 // shallowMerge creates a new struct by merging a child and a parent.

pkg/image/ostree_archive.go

@@ -35,6 +35,11 @@ type OSTreeArchive struct {
 	// kernel arguments for bootable containers.
 	// This is ignored if BootContainer = false.
 	BootcConfig *bootc.Config
+
+	// Bootupd enables bootupd metadata generation for ostree commits.
+	// When true, runs bootupctl backend generate-update-metadata to
+	// transform /usr/lib/ostree-boot into bootupd-compatible update metadata.
+	Bootupd bool
 }
 
 func NewOSTreeArchive(platform platform.Platform, filename string, ref string) *OSTreeArchive {
@@ -62,6 +67,11 @@ func (img *OSTreeArchive) InstantiateManifest(m *manifest.Manifest,
 	ostreeCommitPipeline := manifest.NewOSTreeCommit(buildPipeline, osPipeline, img.OSTreeRef)
 	ostreeCommitPipeline.OSVersion = img.OSVersion
 
+	// Enable bootupd metadata generation if requested
+	if img.Bootupd {
+		osPipeline.Bootupd = true
+	}
+
 	var artifact *artifact.Artifact
 	if img.BootContainer {
 		osPipeline.Bootupd = true

test/data/manifest-checksums/fedora_41-aarch64-iot_commit-kernel_debug

@@ -1 +1 @@
-0d8647e30cbfbd1952e65b6e4b36598844be1da0
+c540dc8d8e97660e0a48f5aae301c6584557359c

test/data/manifest-checksums/fedora_41-x86_64-iot_commit-kernel_debug

@@ -1 +1 @@
-2511d968a93611b29c94b1760d928468dadf4725
+c00040172030f8478d32ccb5af85691d9c5589d8

test/data/manifest-checksums/fedora_42-aarch64-iot_commit-kernel_debug

@@ -1 +1 @@
-d7e796b6fe57a024e52e270bab1818f056bad046
+145d137a4a535550d2dcbf0b29d8deb01a3f60e9

test/data/manifest-checksums/fedora_42-x86_64-iot_commit-kernel_debug

@@ -1 +1 @@
-8bdca7e7c28d21bf9d3e9682470ca721a882a4f1
+0934744341c57dd66b19c7550de9866bf6f4aafb

test/data/manifest-checksums/fedora_43-aarch64-iot_commit-kernel_debug

@@ -1 +1 @@
-ecb284cf29f596e99fef5d7e333aad3546545ae9
+f5d6b8eb561fbbd8357f5bd0d5f0ff08f2538cf2

test/data/manifest-checksums/fedora_43-x86_64-iot_commit-kernel_debug

@@ -1 +1 @@
-5acc55ef5dff2fc0fffe534197552c872bc8ed2c
+e23cdab4086735921d1e85dbd78e6c252ef0900f