image: tweak kernel isotree cmdline args

This commit allows adding kernel commandline options to the
AnacondaContainerInstaller and also tweak the existing
options. Now that tests can append them we can drop e.g.
`console=ttyS0`.

Author: mvo5

pkg/image/anaconda_container_installer.go

@@ -113,18 +113,19 @@ func (img *AnacondaContainerInstaller) InstantiateManifestFromContainer(m *manif
 		img.Kickstart.Path = osbuild.KickstartPathOSBuild
 	}
 
-	bootTreePipeline.KernelOpts = []string{
+	kernelOpts := []string{
 		fmt.Sprintf("inst.stage2=hd:LABEL=%s", img.InstallerCustomizations.ISOLabel),
 		fmt.Sprintf("inst.ks=hd:LABEL=%s:%s", img.InstallerCustomizations.ISOLabel, img.Kickstart.Path),
-		// XXX: allow this to be configured
+		"console=tty0",
+		// XXX: we want the graphical installer eventually, just
+		// need to figure out the dependencies
 		"inst.text",
-		// last console is what anaconda uses to disply its
-		// content, should we switch to tty0 by default here?
-		"console=tty0", "console=ttyS0",
 	}
 	if anacondaPipeline.InstallerCustomizations.FIPS {
-		bootTreePipeline.KernelOpts = append(bootTreePipeline.KernelOpts, "fips=1")
+		kernelOpts = append(kernelOpts, "fips=1")
 	}
+	kernelOpts = append(kernelOpts, img.InstallerCustomizations.KernelOptionsAppend...)
+	bootTreePipeline.KernelOpts = kernelOpts
 
 	isoTreePipeline := manifest.NewAnacondaInstallerISOTree(buildPipeline, anacondaPipeline, rootfsImagePipeline, bootTreePipeline)
 	isoTreePipeline.PartitionTable = efiBootPartitionTable(rng)

test/data/manifest-checksums/bootc_test_os_1-aarch64-bootc_installer-empty

@@ -1 +1 @@
-db1d78a5248c7e7e84d1488d7315537886b95c6a
+0e5ba8dd30f80a431cf48405a7ff84eab6cc7a96

test/data/manifest-checksums/bootc_test_os_1-x86_64-bootc_installer-empty

@@ -1 +1 @@
-6b8edec55f3154037ab6300c776105ffb83d0fdc
+57a85fa7b71308ed92a9d2ba6acac2fef1fa6559