Fix nbd deploy

The image type was not taken into account due to the missing PrepareKernelAction
Signed-off-by: Rémi Duraffort <remi.duraffort@linaro.org>

lava_dispatcher/actions/deploy/nbd.py

@@ -33,6 +33,7 @@ from lava_dispatcher.utils.shell import which
 from lava_dispatcher.utils import filesystem
 from lava_dispatcher.protocols.xnbd import XnbdProtocol
 from lava_dispatcher.actions.deploy.overlay import OverlayAction
+from lava_dispatcher.actions.deploy.prepare import PrepareKernelAction
 
 
 class Nbd(Deployment):
@@ -150,6 +151,8 @@ class NbdAction(DeployAction):  # pylint:disable=too-many-instance-attributes
 
         # prepare overlay
         self.pipeline.add_action(OverlayAction())
+        if "kernel" in parameters and "type" in parameters["kernel"]:
+            self.pipeline.add_action(PrepareKernelAction())
         # setup values for protocol and later steps
         self.set_namespace_data(
             action=self.name,

tests/lava_dispatcher/pipeline_refs/bbb-initrd-nbd.yaml

@@ -18,6 +18,10 @@
     pipeline:
     - {class: actions.deploy.download.HttpDownloadAction, name: http-download}
   - {class: actions.deploy.overlay.OverlayAction, name: lava-overlay}
+  - class: actions.deploy.prepare.PrepareKernelAction
+    name: prepare-kernel
+    pipeline:
+    - {class: actions.deploy.prepare.UBootPrepareKernelAction, name: uboot-prepare-kernel}
   - {class: actions.deploy.nbd.XnbdAction, name: xnbd-server-deploy}
 - class: actions.boot.u_boot.UBootAction
   name: uboot-action