distro/rhel8: update tar image to new definitions

internal/distro/rhel8/bare_metal.go

@@ -36,7 +36,6 @@ func tarImgType() imageType {
 		filename: "root.tar.xz",
 		mimeType: "application/x-tar",
 		packageSets: map[string]packageSetFunc{
-			buildPkgsKey: distroBuildPackageSet,
 			osPkgsKey: func(t *imageType) rpmmd.PackageSet {
 				return rpmmd.PackageSet{
 					Include: []string{"policycoreutils", "selinux-policy-targeted"},
@@ -47,10 +46,10 @@ func tarImgType() imageType {
 		packageSetChains: map[string][]string{
 			osPkgsKey: {osPkgsKey, blueprintPkgsKey},
 		},
-		pipelines:        tarPipelines,
+		image:            tarImage,
 		buildPipelines:   []string{"build"},
-		payloadPipelines: []string{"os", "root-tar"},
-		exports:          []string{"root-tar"},
+		payloadPipelines: []string{"os", "archive"},
+		exports:          []string{"archive"},
 	}
 }
 

internal/distro/rhel8/images.go

@@ -197,3 +197,23 @@ func liveImage(workload workload.Workload,
 
 	return img, nil
 }
+
+func tarImage(workload workload.Workload,
+	t *imageType,
+	customizations *blueprint.Customizations,
+	options distro.ImageOptions,
+	packageSets map[string]rpmmd.PackageSet,
+	containers []container.Spec,
+	rng *rand.Rand) (image.ImageKind, error) {
+
+	img := image.NewArchive()
+	img.Platform = t.platform
+	img.OSCustomizations = osCustomizations(t, packageSets[osPkgsKey], options, containers, customizations)
+	img.Environment = t.environment
+	img.Workload = workload
+
+	img.Filename = t.Filename()
+
+	return img, nil
+
+}

internal/distro/rhel8/pipelines.go

@@ -28,20 +28,6 @@ func prependKernelCmdlineStage(pipeline *osbuild.Pipeline, t *imageType, pt *dis
 	return pipeline
 }
 
-func tarPipelines(t *imageType, customizations *blueprint.Customizations, options distro.ImageOptions, repos []rpmmd.RepoConfig, packageSetSpecs map[string][]rpmmd.PackageSpec, containers []container.Spec, rng *rand.Rand) ([]osbuild.Pipeline, error) {
-	pipelines := make([]osbuild.Pipeline, 0)
-	pipelines = append(pipelines, *buildPipeline(repos, packageSetSpecs[buildPkgsKey], t.arch.distro.runner.String()))
-
-	treePipeline, err := osPipeline(t, repos, packageSetSpecs[osPkgsKey], containers, customizations, options, nil)
-	if err != nil {
-		return nil, err
-	}
-	pipelines = append(pipelines, *treePipeline)
-	tarPipeline := tarArchivePipeline("root-tar", treePipeline.Name, &osbuild.TarStageOptions{Filename: "root.tar.xz"})
-	pipelines = append(pipelines, *tarPipeline)
-	return pipelines, nil
-}
-
 // makeISORootPath return a path that can be used to address files and folders in
 // the root of the iso
 func makeISORootPath(p string) string {