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landlock: Dockerfile

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Signed-off-by: Riyaz Faizullabhoy <riyaz.faizullabhoy@docker.com>
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Riyaz Faizullabhoy 2017-04-09 12:06:48 -07:00
parent 9d1b120498
commit 1e9495e609
1 changed files with 53 additions and 0 deletions
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FROM mobylinux/alpine-build-kernel:0e893fbf6fa7638d2f23354de03ea11017bb8065@sha256:3ef3f9d11f0802b759dbd9c43a7706cf0ec37263c99ae90e2b10c29ea85739fa
ARG KERNEL_VERSION
ARG DEBUG=0
ENV KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.xz
RUN curl -fsSL -o linux-${KERNEL_VERSION}.tar.xz ${KERNEL_SOURCE}
RUN cat linux-${KERNEL_VERSION}.tar.xz | tar --absolute-names -xJ && mv /linux-${KERNEL_VERSION} /linux
COPY kernel_config /linux/arch/x86/configs/x86_64_defconfig
COPY kernel_config.debug /linux/debug_config
RUN if [ $DEBUG -ne "0" ]; then \
sed -i 's/CONFIG_PANIC_ON_OOPS=y/# CONFIG_PANIC_ON_OOPS is not set/' /linux/arch/x86/configs/x86_64_defconfig; \
cat /linux/debug_config >> /linux/arch/x86/configs/x86_64_defconfig; \
fi
# Apply local patches
COPY patches-4.9 /patches
RUN cd /linux && \
set -e && for patch in /patches/*.patch; do \
echo "Applying $patch"; \
patch -p1 < "$patch"; \
done
RUN cd /linux && \
make defconfig && \
make oldconfig && \
make -j "$(getconf _NPROCESSORS_ONLN)" KCFLAGS="-fno-pie"
RUN cd /linux && \
make INSTALL_MOD_PATH=/tmp/kernel-modules modules_install && \
( DVER=$(basename $(find /tmp/kernel-modules/lib/modules/ -mindepth 1 -maxdepth 1)) && \
cd /tmp/kernel-modules/lib/modules/$DVER && \
rm build source && \
ln -s /usr/src/linux-headers-$DVER build ) && \
mkdir -p /tmp/kernel-headers/usr && \
make INSTALL_HDR_PATH=/tmp/kernel-headers/usr headers_install && \
( cd /tmp/kernel-headers && tar cf /kernel-headers.tar usr ) && \
( cd /tmp/kernel-modules && tar cf /kernel-modules.tar lib ) && \
cp vmlinux arch/x86_64/boot/bzImage /
RUN DVER=$(basename $(find /tmp/kernel-modules/lib/modules/ -mindepth 1 -maxdepth 1)) && \
dir=/tmp/usr/src/linux-headers-$DVER && \
mkdir -p $dir && \
cp /linux/.config $dir && \
cd /linux && \
cp -a include "$dir" && \
mkdir -p "$dir"/arch/x86 && cp -a arch/x86/include "$dir"/arch/x86/ && \
( cd /tmp && tar cf /kernel-dev.tar usr/src )
RUN printf "KERNEL_SOURCE=${KERNEL_SOURCE}\n" > /kernel-source-info