Worker: move GCE image guest OS features to upload target options

Previously, the worker was determining the GCE image guest OS Features
on its own, based on the OS name. This caused problems, in case the
osbuild-composer was of a newer version than the worker.

Example:
osbuild-composer contained support for c10s GCE image type and its
implementation also contained the proper guest OS Features list for it.
However, when the worker got the osbuild job, it built it and tried to
fetch the guest OS Features for the distro. Since its implementation was
too old, it didn't contain the code that added the actual support for
c10s GCE images and got no guest OS features list (which is the default
for unsupported distros). The image was successfully uploaded and
shared, but it does not boot in GCP, because it does not know that it
should use UEFI to boot it.

This behavior could be considered a bug. The worker should be dumb. It
should not be making decisions about the image features, but instead it
should take them from the upload target options. And composer should be
the authoritative source of truth for this. Because otherwise, we
basically have two components that need to be updated in sync to add
support for GCE images on a new distro.

Move the GCE image guest OS features to the GCP upload target options.
The worker will just take what is specified there and use it when
importing the image to GCP. As a compatibility layer for the case when
the composer would be older than the worker (unlikely, but still),
worker will try to determine the image guest OS features in case the
list in the upload target options is empty.

Extend the GCP functional tests to check that the imported image has at
least some guest OS features set.

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

cmd/osbuild-worker/jobimpl-osbuild.go

@@ -807,9 +807,17 @@ func (impl *OSBuildJobImpl) Run(job worker.Job) error {
 				break
 			}
 
+			guestOSFeatures := targetOptions.GuestOsFeatures
+			// TODO: Remove this after "some time"
+			// This is just a backward compatibility for the old composer versions,
+			// which did not set the guest OS features in the target options.
+			if len(guestOSFeatures) == 0 {
+				guestOSFeatures = gcp.GuestOsFeaturesByDistro(targetOptions.Os)
+			}
+
 			logWithId.Infof("[GCP] 📥 Importing image into Compute Engine as '%s'", jobTarget.ImageName)
 
-			_, importErr := g.ComputeImageInsert(ctx, bucket, targetOptions.Object, jobTarget.ImageName, []string{targetOptions.Region}, gcp.GuestOsFeaturesByDistro(targetOptions.Os))
+			_, importErr := g.ComputeImageInsert(ctx, bucket, targetOptions.Object, jobTarget.ImageName, []string{targetOptions.Region}, guestOSFeatures)
 			if importErr == nil {
 				logWithId.Infof("[GCP] 🎉 Image import finished successfully")
 			}

internal/cloudapi/v2/imagerequest.go

@@ -11,6 +11,7 @@ import (
 	"github.com/osbuild/images/pkg/distro"
 	"github.com/osbuild/images/pkg/ostree"
 	"github.com/osbuild/osbuild-composer/internal/blueprint"
+	"github.com/osbuild/osbuild-composer/internal/cloud/gcp"
 	"github.com/osbuild/osbuild-composer/internal/common"
 	"github.com/osbuild/osbuild-composer/internal/target"
 )
@@ -153,13 +154,15 @@ func newGCPTarget(options UploadOptions, imageType distro.ImageType) (*target.Ta
 	if gcpUploadOptions.Bucket != nil {
 		bucket = *gcpUploadOptions.Bucket
 	}
+	osName := imageType.Arch().Distro().Name()
 	t := target.NewGCPTarget(&target.GCPTargetOptions{
 		Region: gcpUploadOptions.Region,
-		Os:     imageType.Arch().Distro().Name(), // not exposed in cloudapi
+		Os:     osName, // not exposed in cloudapi
 		Bucket: bucket,
 		// the uploaded object must have a valid extension
 		Object:            fmt.Sprintf("%s.tar.gz", imageName),
 		ShareWithAccounts: share,
+		GuestOsFeatures:   gcp.GuestOsFeaturesByDistro(osName), // not exposed in cloudapi
 	})
 	// Import will fail if an image with this name already exists
 	if gcpUploadOptions.ImageName != nil {

internal/target/gcp_target.go

@@ -1,5 +1,7 @@
 package target
 
+import "cloud.google.com/go/compute/apiv1/computepb"
+
 const TargetNameGCP TargetName = "org.osbuild.gcp"
 
 type GCPTargetOptions struct {
@@ -13,6 +15,9 @@ type GCPTargetOptions struct {
 	// to GCP. If not provided, the worker will try to authenticate using the
 	// credentials from worker's configuration.
 	Credentials []byte `json:"credentials,omitempty"`
+
+	// The list of Guest OS Features to specify for the image being imported.
+	GuestOsFeatures []*computepb.GuestOsFeature `json:"guestOsFeatures,omitempty"`
 }
 
 func (GCPTargetOptions) isTargetOptions() {}

internal/weldr/upload.go

@@ -10,6 +10,7 @@ import (
 
 	ec2types "github.com/aws/aws-sdk-go-v2/service/ec2/types"
 	"github.com/osbuild/images/pkg/distro"
+	"github.com/osbuild/osbuild-composer/internal/cloud/gcp"
 	"github.com/osbuild/osbuild-composer/internal/common"
 	"github.com/sirupsen/logrus"
 
@@ -346,12 +347,15 @@ func uploadRequestToTarget(u uploadRequest, imageType distro.ImageType) *target.
 			logrus.Infof("[GCP] object name must end with '.tar.gz', using %q as the object name", objectName)
 		}
 
+		osName := imageType.Arch().Distro().Name()
+
 		t.Options = &target.GCPTargetOptions{
-			Region:      options.Region,
-			Os:          imageType.Arch().Distro().Name(),
-			Bucket:      options.Bucket,
-			Object:      objectName,
-			Credentials: gcpCredentials,
+			Region:          options.Region,
+			Os:              osName,
+			Bucket:          options.Bucket,
+			Object:          objectName,
+			Credentials:     gcpCredentials,
+			GuestOsFeatures: gcp.GuestOsFeaturesByDistro(osName),
 		}
 	case *vmwareUploadSettings:
 		t.Name = target.TargetNameVMWare

test/cases/api/gcp.sh

@@ -131,6 +131,13 @@ function verify() {
     exit 1
   fi
 
+  # Verify that the image has guestOsFeatures set
+  GCP_IMAGE_GUEST_OS_FEATURES_LEN=$($GCP_CMD compute images describe --project="$GCP_PROJECT" --format="json" "$GCP_IMAGE_NAME" | jq -r '.guestOsFeatures | length')
+  if [ "$GCP_IMAGE_GUEST_OS_FEATURES_LEN" -eq 0 ]; then
+    echo "❌ Image does not have guestOsFeatures set"
+    exit 1
+  fi
+
   # Verify that the image boots and have customizations applied
   # Create SSH keys to use
   GCP_SSH_KEY="$WORKDIR/id_google_compute_engine"

test/cases/gcp.sh

@@ -107,6 +107,13 @@ function verifyInGCP() {
     # Add "gitlab-ci-test" label to the image
     $GCP_CMD compute images add-labels "$GCP_IMAGE_NAME" --labels=gitlab-ci-test=true
 
+    # Verify that the image has guestOsFeatures set
+    GCP_IMAGE_GUEST_OS_FEATURES_LEN=$($GCP_CMD compute images describe --project="$GCP_PROJECT" --format="json" "$GCP_IMAGE_NAME" | jq -r '.guestOsFeatures | length')
+    if [ "$GCP_IMAGE_GUEST_OS_FEATURES_LEN" -eq 0 ]; then
+        echo "❌ Image does not have guestOsFeatures set"
+        exit 1
+    fi
+
     # Verify that the image boots and have customizations applied
     # Create SSH keys to use
     GCP_SSH_KEY="$TEMPDIR/id_google_compute_engine"