blueprint: add support for kernel customization

internal/blueprint/ami_output.go

@@ -22,7 +22,7 @@ func (t *amiOutput) translate(b *Blueprint) *pipeline.Pipeline {
 	addF30FixBlsStage(p)
 	addF30LocaleStage(p)
 	addF30FSTabStage(p)
-	addF30GRUB2Stage(p)
+	addF30GRUB2Stage(p, nil)
 	addF30SELinuxStage(p)
 	addF30QemuAssembler(p, "qcow2", t.getName())
 	return p

internal/blueprint/blueprint.go

@@ -73,6 +73,14 @@ func (b *Blueprint) ToPipeline(outputFormat string) (*pipeline.Pipeline, error)
 	return nil, &InvalidOutputFormatError{outputFormat}
 }
 
+func (b *Blueprint) getKernelCustomization() *KernelCustomization {
+	if b.Customizations == nil {
+		return nil
+	}
+
+	return b.Customizations.Kernel
+}
+
 // FilenameFromType gets the canonical filename and MIME type for a given
 // output format
 func FilenameFromType(outputFormat string) (string, string, error) {

internal/blueprint/disk_output.go

@@ -7,7 +7,7 @@ type diskOutput struct{}
 func (t *diskOutput) translate(b *Blueprint) *pipeline.Pipeline {
 	p := getF30Pipeline()
 	addF30FSTabStage(p)
-	addF30GRUB2Stage(p)
+	addF30GRUB2Stage(p, b.getKernelCustomization())
 	addF30SELinuxStage(p)
 	addF30QemuAssembler(p, "raw", t.getName())
 	return p

internal/blueprint/f30_helpers.go

@@ -78,15 +78,21 @@ func getCustomF30PackageSet(packages []string, excludedPackages []string) *pipel
 	return p
 }
 
-func addF30GRUB2Stage(p *pipeline.Pipeline) {
+func addF30GRUB2Stage(p *pipeline.Pipeline, kernelCustomization *KernelCustomization) {
 	id, err := uuid.Parse("76a22bf4-f153-4541-b6c7-0332c0dfaeac")
 	if err != nil {
 		panic("invalid UUID")
 	}
+	kernelOptions := "ro biosdevname=0 net.ifnames=0"
+
+	if kernelCustomization != nil {
+		kernelOptions += " " + kernelCustomization.Append
+	}
+
 	p.AddStage(pipeline.NewGRUB2Stage(
 		&pipeline.GRUB2StageOptions{
 			RootFilesystemUUID: id,
-			KernelOptions:      "ro biosdevname=0 net.ifnames=0",
+			KernelOptions:      kernelOptions,
 		},
 	))
 }

internal/blueprint/openstack_output.go

@@ -21,7 +21,7 @@ func (t *openstackOutput) translate(b *Blueprint) *pipeline.Pipeline {
 	p := getCustomF30PackageSet(packages[:], []string{})
 	addF30LocaleStage(p)
 	addF30FSTabStage(p)
-	addF30GRUB2Stage(p)
+	addF30GRUB2Stage(p, b.getKernelCustomization())
 	addF30SELinuxStage(p)
 	addF30FixBlsStage(p)
 	addF30QemuAssembler(p, "qcow2", t.getName())

internal/blueprint/qcow2_output.go

@@ -25,7 +25,7 @@ func (t *qcow2Output) translate(b *Blueprint) *pipeline.Pipeline {
 	p := getCustomF30PackageSet(packages[:], excludedPackages[:])
 	addF30LocaleStage(p)
 	addF30FSTabStage(p)
-	addF30GRUB2Stage(p)
+	addF30GRUB2Stage(p, b.getKernelCustomization())
 	addF30SELinuxStage(p)
 	addF30FixBlsStage(p)
 	addF30QemuAssembler(p, "qcow2", t.getName())

internal/blueprint/vhd_output.go

@@ -20,7 +20,7 @@ func (t *vhdOutput) translate(b *Blueprint) *pipeline.Pipeline {
 	p := getCustomF30PackageSet(packages[:], []string{})
 	addF30LocaleStage(p)
 	addF30FSTabStage(p)
-	addF30GRUB2Stage(p)
+	addF30GRUB2Stage(p, b.getKernelCustomization())
 	addF30SELinuxStage(p)
 	addF30FixBlsStage(p)
 	addF30QemuAssembler(p, "qcow2", t.getName())

internal/blueprint/vmdk_output.go

@@ -7,7 +7,7 @@ type vmdkOutput struct{}
 func (t *vmdkOutput) translate(b *Blueprint) *pipeline.Pipeline {
 	p := getF30Pipeline()
 	addF30FSTabStage(p)
-	addF30GRUB2Stage(p)
+	addF30GRUB2Stage(p, b.getKernelCustomization())
 	addF30SELinuxStage(p)
 	addF30QemuAssembler(p, "vmdk", t.getName())
 	return p