2025-10-12 17:45:16 -07:00
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ARG KERNEL_SOURCE_URL=https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.17.2.tar.xz
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ARG KERNEL_CHECKSUM=sha256:fdebcb065065f5c1b8dc68a6fb59cda50cdddbf9103d207c2196d55ea764f57f
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2025-10-01 16:45:04 -07:00
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FROM --platform=$BUILDPLATFORM debian:trixie@sha256:fd8f5a1df07b5195613e4b9a0b6a947d3772a151b81975db27d47f093f60c6e6 AS buildenv
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RUN export DEBIAN_FRONTEND=noninteractive && apt-get update && apt-get install -y \
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build-essential squashfs-tools python3-yaml \
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patch diffutils sed mawk findutils zstd \
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python3 python3-packaging curl rsync cpio \
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flex bison pahole libssl-dev libelf-dev bc kmod && \
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rm -rf /var/lib/apt/lists/*
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ARG BUILDPLATFORM
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RUN if [ "${BUILDPLATFORM}" = "linux/amd64" ] || [ "${BUILDPLATFORM}" = "linux/x86_64" ]; then \
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apt-get update && apt-get install -y linux-headers-amd64 gcc-aarch64-linux-gnu && rm -rf /var/lib/apt/lists/*; fi
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RUN if [ "${BUILDPLATFORM}" = "linux/arm64" ] || [ "${BUILDPLATFORM}" = "linux/aarch64" ]; then \
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apt-get update && apt-get install -y linux-headers-arm64 gcc-x86-64-linux-gnu && rm -rf /var/lib/apt/lists/*; fi
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RUN useradd -ms /bin/sh build
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COPY --chown=build:build docker-build.sh /build/docker-build.sh
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USER build
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WORKDIR /build
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FROM scratch AS source
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ARG KERNEL_SOURCE_URL
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ARG KERNEL_CHECKSUM
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ADD --checksum=${KERNEL_CHECKSUM} ${KERNEL_SOURCE_URL} /src.tar.xz
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FROM --platform=$BUILDPLATFORM buildenv AS build
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COPY --from=source --chown=build:build /src.tar.xz /build/src.tar.xz
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RUN mkdir /build/src && tar -C /build/src --strip-components=1 -xf /build/src.tar.xz && rm /build/src.tar.xz
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ARG BUILDPLATFORM
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ARG TARGETPLATFORM
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ENV BUILDPLATFORM=${BUILDPLATFORM}
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ENV TARGETPLATFORM=${TARGETPLATFORM}
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WORKDIR /build/src
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RUN /build/docker-build.sh
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FROM scratch AS final
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COPY --from=build /build/src/kernel.image /kernel.efi
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