image: add OSTreeRawImage ImageKind

InstantiateManifest is a stub.  No implementation yet.

Co-Authored-By: Ondřej Budai <ondrej@budai.cz>

internal/image/ostree_raw.go

@@ -0,0 +1,42 @@
+package image
+
+import (
+	"math/rand"
+
+	"github.com/osbuild/osbuild-composer/internal/artifact"
+	"github.com/osbuild/osbuild-composer/internal/disk"
+	"github.com/osbuild/osbuild-composer/internal/manifest"
+	"github.com/osbuild/osbuild-composer/internal/platform"
+	"github.com/osbuild/osbuild-composer/internal/rpmmd"
+	"github.com/osbuild/osbuild-composer/internal/runner"
+	"github.com/osbuild/osbuild-composer/internal/workload"
+)
+
+type OSTreeRawImage struct {
+	Base
+	Platform       platform.Platform
+	Workload       workload.Workload
+	PartitionTable *disk.PartitionTable
+
+	OSTreeURL    string
+	OSTreeRef    string
+	OSTreeCommit string
+
+	Remote string
+	OSName string
+
+	Filename string
+}
+
+func NewOSTreeRawImage() *OSTreeRawImage {
+	return &OSTreeRawImage{
+		Base: NewBase("ostree-raw-image"),
+	}
+}
+
+func (img *OSTreeRawImage) InstantiateManifest(m *manifest.Manifest,
+	repos []rpmmd.RepoConfig,
+	runner runner.Runner,
+	rng *rand.Rand) (*artifact.Artifact, error) {
+	return nil, nil
+}