What are the changes introduced in this pull request?

1. Ingest bootc-related facts and populate values in the host's content facet.
2. Based on the bootc_booted_digest, associate host content facets with either a DockerManifest or DockerManifestList.
3. Display this information on the new All Hosts UI.

Considerations taken when implementing this change?

• I didn't use the correct image mode / package mode icons in the table column. This is because it would require Font Awesome icons which we don't have set up.For now I'm using the BundleIcon for package mode, and the MiddlewareIcon for image mode.
• The table cell has a popover showing the booted image and digest. I didn't link to anything because apparently the appropriate pages don't exist yet.

What are the testing steps for this pull request?

Setup

1. Run the migrations
2. Sync a repo containing DockerManifests and DockerManifestLists - https://quay.io/repository/centos-bootc/centos-bootc. Use a tag in include list on docker repo creation page so it doesn't sync everything.. "stream9" tag has a manifest list and some bootable manifests.
3. Register a host
4. Create a file on the host, /etc/rhsm/facts/bootc.facts

# cat bootc.facts
{
"bootc.booted.image": "quay.io/centos-bootc/centos-bootc:42",
"bootc.booted.version": "42.20241104.1",
"bootc.booted.digest": "sha256:18ec8a272258b22bf9707b1963d72b8987110c8965c3d08b496fac0b1fb22159",
"bootc.staged.image": "quay.io/fedora/fedora-bootc:40",
"bootc.staged.version": "40.20241023.0",
"bootc.staged.digest": "sha256:b2b888aa0a05f3278e4957cb658fd088e3579e214140dc88ca138f47144d6a05",
"bootc.rollback.image": "quay.io/centos-bootc/centos-bootc:stream9",
"bootc.rollback.version": "stream9.20241101.0",
"bootc.rollback.digest": "sha256:893b636bbc5725378ce602f222f26c29f51334f93243ae8657d31391634eb024",
"bootc.available.image": null,
"bootc.available.version": null,
"bootc.available.digest": null
}

6. Make sure the bootc.booted.digest matches the digest of one of the DockerManifests or DockerManifestLists you have synced
7. On the host, run subscription-manager facts --update

Testing

1. The facts update should complete without errors
2. The host content facet should show the same data as the facts file:

pry(main)> rhel9b.content_facet
=> #<Katello::Host::ContentFacet:0x00007fac3c807fb0
 id: 4,
 host_id: 5,
 uuid: "45d3d61a-b76e-404d-98ed-3475a06c7611",
 kickstart_repository_id: nil,
 content_source_id: 1,
 installable_security_errata_count: 94,
 installable_enhancement_errata_count: 14,
 installable_bugfix_errata_count: 177,
 applicable_rpm_count: 693,
 upgradable_rpm_count: 693,
 applicable_module_stream_count: 0,
 upgradable_module_stream_count: 0,
 applicable_deb_count: 0,
 upgradable_deb_count: 0,
 bootc_booted_image: "quay.io/centos-bootc/centos-bootc:42",
 bootc_booted_digest: "sha256:18ec8a272258b22bf9707b1963d72b8987110c8965c3d08b496fac0b1fb22159",
 bootc_available_image: nil,
 bootc_available_digest: nil,
 bootc_staged_image: "quay.io/fedora/fedora-bootc:40",
 bootc_staged_digest: "sha256:b2b888aa0a05f3278e4957cb658fd088e3579e214140dc88ca138f47144d6a05",
 bootc_rollback_image: "quay.io/centos-bootc/centos-bootc:stream9",
 bootc_rollback_digest: "sha256:893b636bbc5725378ce602f222f26c29f51334f93243ae8657d31391634eb024",
 manifest_entity_type: "Katello::DockerManifest",
 manifest_entity_id: 8>

3. Add the new "Image mode / package mode" column to All Hosts and verify it works. Click on an image mode icon to see the popover with details.
4. These new Active Record queries should work as expected:

my_docker_manifest.hosts
my_docker_manifest.content_facets
my_content_facet.manifest_entity # can be either a DockerManifest or DockerManifestList

# one of the following two will be nil
my_host.docker_manifest
my_host.docker_manifest_list

5. When you remove the facts from the host and do another facts update:

• the content facet values should get cleared out
• the associations will be removed