Cloud API: explicitly specify boot mode in AWS upload target

Explicitly specify the AMI boot mode in AWS upload target in Cloud API
compose handler. The value is determined based on image type's boot
mode.

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

internal/cloudapi/v2/handler.go

@@ -11,6 +11,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/aws/aws-sdk-go/service/ec2"
 	"github.com/google/uuid"
 	"github.com/labstack/echo/v4"
 
@@ -523,10 +524,22 @@ func (h *apiHandlers) PostCompose(ctx echo.Context) error {
 				// guaranteed to be unique as well. If users are ever allowed to name their images,
 				// an extra tag should be added.
 				key := fmt.Sprintf("composer-api-%s", uuid.New().String())
+
+				var amiBootMode *string
+				switch imageType.BootMode() {
+				case distro.BOOT_HYBRID:
+					amiBootMode = common.ToPtr(ec2.BootModeValuesUefiPreferred)
+				case distro.BOOT_UEFI:
+					amiBootMode = common.ToPtr(ec2.BootModeValuesUefi)
+				case distro.BOOT_LEGACY:
+					amiBootMode = common.ToPtr(ec2.BootModeValuesLegacyBios)
+				}
+
 				t := target.NewAWSTarget(&target.AWSTargetOptions{
 					Region:            awsUploadOptions.Region,
 					Key:               key,
 					ShareWithAccounts: awsUploadOptions.ShareWithAccounts,
+					BootMode:          amiBootMode,
 				})
 				if awsUploadOptions.SnapshotName != nil {
 					t.ImageName = *awsUploadOptions.SnapshotName