Rewrite makefile to use out/ dir

docker/initramfs.Dockerfile

@@ -1,11 +1,5 @@
 ARG TAG=dev
 ARG DOCKER_IMAGE_ROOT=monok8s
-FROM --platform=$BUILDPLATFORM ${DOCKER_IMAGE_ROOT}/kernel-build:${TAG} AS kernel
-
-# Selective mods
-RUN mkdir /out/selected-mods
-COPY initramfs/selective-mods.sh /
-RUN /selective-mods.sh /out/rootfs/lib/modules/$(ls /out/rootfs/lib/modules/) /out/selected-mods
 
 FROM --platform=$BUILDPLATFORM ${DOCKER_IMAGE_ROOT}/build-base:${TAG} AS build
 
@@ -35,7 +29,11 @@ COPY initramfs/init init
 RUN chmod +x init
 RUN mkdir -p bin sbin etc proc sys dev lib usr/bin usr/sbin
 
-COPY --from=kernel /out/selected-mods/* ./lib/
+# Selective mods
+RUN mkdir -p /out/selected-mods /out/kernel
+COPY initramfs/selective-mods.sh /
+COPY out/rootfs /out/rootfs
+RUN /selective-mods.sh /out/rootfs/lib/modules/$(ls /out/rootfs/lib/modules/) ./lib/
 
 RUN find . -print0 | cpio --null -ov --format=newc | gzip -9 > ../initramfs.cpio.gz
 

docker/itb.Dockerfile

@@ -10,11 +10,11 @@ ARG DEVICE_TREE_TARGET
 RUN mkdir /image
 WORKDIR /image
 
-COPY --from=kernel /out/kernel/Image.gz ./Image.gz
-COPY --from=kernel /out/kernel/System.map ./
-COPY --from=kernel /out/kernel/.config ./
-COPY --from=fit /out/initramfs.cpio.gz ./
-COPY --from=kernel /out/${DEVICE_TREE_TARGET}.dtb ./
+COPY [ "./out/Image.gz" \
+	, "./out/System.map" \
+	, "./out/.config" \
+	, "./out/initramfs.cpio.gz" \
+	, "./out/${DEVICE_TREE_TARGET}.dtb", "./" ]
 
 COPY ./board.its ./_board.its
 

docker/kernel-build.Dockerfile

@@ -1,6 +1,6 @@
 ARG TAG=dev
 ARG DOCKER_IMAGE_ROOT=monok8s
-FROM --platform=$BUILDPLATFORM ${DOCKER_IMAGE_ROOT}/build-base:${TAG}
+FROM --platform=$BUILDPLATFORM ${DOCKER_IMAGE_ROOT}/build-base:${TAG} AS build
 
 ARG NXP_VERSION
 ARG ARCH
@@ -46,3 +46,14 @@ RUN depmod -b /out/rootfs $(ls /out/rootfs/lib/modules/)
 
 RUN find /out/kernel -name "${DEVICE_TREE_TARGET}.dtb" -exec cp {} /out/ \;
 RUN test -f "/out/${DEVICE_TREE_TARGET}.dtb"
+
+FROM scratch
+ARG DEVICE_TREE_TARGET
+
+COPY --from=build \
+	/out/kernel/System.map \
+	/out/kernel/.config \
+	/out/kernel/Image.gz \
+	/out/${DEVICE_TREE_TARGET}.dtb \
+	./
+COPY --from=build /out/rootfs/ ./rootfs

docker/release.Dockerfile

@@ -1,4 +0,0 @@
-ARG RELEASE_IMAGE
-FROM scratch
-
-COPY --from artifacts $RELEASE_IMAGE /$RELEASE_IMAGE