fix hostprocess builds

Signed-off-by: Jan-Otto Kröpke <[email protected]>

Dockerfile

@@ -1,7 +1,7 @@
 # Note this image doesn't really matter for hostprocess but it is good to build per OS version
 # the files in the image are copied to $env:CONTAINER_SANDBOX_MOUNT_POINT on the host
 # but the file system is the Host NOT the container
-ARG BASE="mcr.microsoft.com/windows/nanoserver:1809"
+ARG BASE="mcr.microsoft.com/windows/nanoserver:ltsc2022"
 FROM $BASE
 
 ENV PATH="C:\Windows\system32;C:\Windows;"

Makefile

@@ -59,7 +59,7 @@ build-image: crossbuild
 # Hostprocess images requires buildkit to build
 # https://github.com/microsoft/windows-host-process-containers-base-image#build-with-buildkit
 build-hostprocess-image: crossbuild
-	$(DOCKER) buildx build --load --build-arg=BASE=$(BASE_HOST_PROCESS_IMAGE) -f Dockerfile -t local/$(DOCKER_IMAGE_NAME):$(VERSION)-hostprocess .
+	$(DOCKER) buildx build --build-arg=BASE=$(BASE_HOST_PROCESS_IMAGE) -f Dockerfile -t local/$(DOCKER_IMAGE_NAME):$(VERSION)-hostprocess .
 
 sub-build-%:
 	$(MAKE) OS=$* build-image