Add kernel config as optional parameter to transformer 'dom0_binaries'

Copy kernel config under /boot if passed to the transformer

Signed-off-by: Smit Gardhariya <[email protected]>

lisa/transformers/dom0_kernel_installer.py

@@ -35,6 +35,14 @@ class BinaryInstallerSchema(BaseInstallerSchema):
         ),
     )
 
+    # kernel config local absolute path
+    kernel_config_path: str = field(
+        default="",
+        metadata=field_metadata(
+            required=True,
+        ),
+    )
+
     # initrd binary local absolute path
     initrd_image_path: str = field(
         default="",
@@ -67,6 +75,7 @@ def install(self) -> str:
         kernel_image_path: str = runbook.kernel_image_path
         initrd_image_path: str = runbook.initrd_image_path
         kernel_modules_path: str = runbook.kernel_modules_path
+        kernel_config_path: str = runbook.kernel_config_path
         is_initrd: bool = False
 
         uname = node.tools[Uname]
@@ -117,6 +126,20 @@ def install(self) -> str:
                 node.get_pure_path(f"/boot/initrd.img-{new_kernel}"),
             )
 
+        if kernel_config_path:
+            # Copy kernel config
+            err = f"Can not find kernel config path: {kernel_config_path}"
+            assert os.path.exists(kernel_config_path), err
+            node.shell.copy(
+                PurePath(kernel_config_path),
+                node.get_pure_path(f"/var/tmp/config-{new_kernel}"),
+            )
+            _copy_kernel_binary(
+                node,
+                node.get_pure_path(f"/var/tmp/config-{new_kernel}"),
+                node.get_pure_path(f"/boot/config-{new_kernel}"),
+            )
+
         _update_mariner_config(
             node,
             is_initrd,
@@ -199,6 +222,19 @@ def _update_mariner_config(
         sudo=True,
     )
 
+    cp = node.tools[Cp]
+    cp.copy(
+        src=PurePath(f"/boot/initrd.img-{current_kernel}"),
+        dest=PurePath(f"/boot/initrd.img-{new_kernel}"),
+        sudo=True,
+    )
+    sed.substitute(
+        regexp=f"mariner_initrd_mshv=initrd.img-{current_kernel}",
+        replacement=f"mariner_initrd_mshv=initrd.img-{new_kernel}",
+        file=mariner_config,
+        sudo=True,
+    )
+
     if is_initrd:
         # Modify the /boot/mariner-mshv.cfg to point new initrd binary
         sed.substitute(