Merge pull request #1561 from riyazdf/landlock-makefile-dockerfile

Landlock: kernel build materials and example yml
This commit is contained in:
Justin Cormack 2017-04-10 10:48:37 +01:00 committed by GitHub
commit ce70127028
4 changed files with 160 additions and 0 deletions

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x86_64/
etc/
lib/
usr/
sbin/
bzImage

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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

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DEBUG ?= 0
all: bzImage push
# We push the image to hub twice, once with the full kernel version of
# "mobylinux/kernel:<kernel version>.<major version>.<minor version>-<n>",
# where "<n>" is a monotonically increasing config number, and as
# "mobylinux/kernel:<kernel version>.<major version>.x". This version
# number is stored in IMAGE_VERSION.
#
# We expect most users to us the "<kernel version>.<major version>.x"
# variant as this simply is the latest version of a given major kernel
# version. This version number is stored in IMAGE_MAJOR_VERSION.
#
# For IMAGE_VERSION, the "<n>" must be increased whenever
# the kernel config or the patches change. We don't expect this to
# happen very often as the minor version number gets update quite
# frequently.
#
# IMAGE_VERSION is used to determine if a new image should be pushed to hub.
KERNEL_VERSION=4.9.20
IMAGE_VERSION=$(KERNEL_VERSION)-1
IMAGE_MAJOR_VERSION=4.9.x
DEPS=Dockerfile Makefile kernel_config kernel_config.debug patches-4.9
kernel.tag: $(DEPS)
BUILD=$$( tar cf - $^ | docker build -f $< --build-arg DEBUG=$(DEBUG) --build-arg KERNEL_VERSION=$(KERNEL_VERSION) -q - ) && [ -n "$$BUILD" ] && echo "Built $$BUILD" && echo "$$BUILD" > $@
bzImage: kernel.tag
rm -rf etc/kernel-patches
mkdir -p x86_64 etc lib usr sbin etc/kernel-patches
docker run --rm --net=none --log-driver=none $(shell cat kernel.tag) tar cf - bzImage kernel-dev.tar kernel-headers.tar vmlinux kernel-modules.tar | tar xf - -C x86_64
cp x86_64/kernel-modules.tar kernel.tar
cp x86_64/bzImage $@
.PHONY: image push tag
MEDIA_TOYBOX=mobylinux/toybox-media:0a26fe5f574e444849983f9c4148ef74b3804d55@sha256:5ac38f77b66deb194c9016591b9b096e81fcdc9f7c3e6d01566294a6b4b4ebd2
BASE="$MEDIA_TOYBOX"
IMAGE=kernel-landlock
default: push
Dockerfile.media:
printf "FROM $(MEDIA_TOYBOX)\nADD . /\n" > $@
image: Dockerfile.media bzImage kernel.tar $(DEPS)
tar cf - $^ | docker build --no-cache -t $(IMAGE):build -f Dockerfile.media -
push: image
docker pull mobylinux/$(IMAGE):$(IMAGE_VERSION) || \
(docker tag $(IMAGE):build mobylinux/$(IMAGE):$(IMAGE_VERSION) && \
docker push mobylinux/$(IMAGE):$(IMAGE_VERSION) && \
docker tag $(IMAGE):build mobylinux/$(IMAGE):$(IMAGE_MAJOR_VERSION) && \
docker push mobylinux/$(IMAGE):$(IMAGE_MAJOR_VERSION))
docker rmi $(IMAGE):build
rm -f hash
tag: image
(docker tag $(IMAGE):build mobylinux/$(IMAGE):$(IMAGE_VERSION) && \
docker tag $(IMAGE):build mobylinux/$(IMAGE):$(IMAGE_MAJOR_VERSION))
docker rmi $(IMAGE):build
rm -f hash
.PHONY: clean
clean:
rm -rf x86_64 lib usr sbin kernel.tag Dockerfile.media bzImage kernel.tar
.DELETE_ON_ERROR:

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kernel:
image: "mobylinux/kernel-landlock:4.9.x"
cmdline: "console=ttyS0 page_poison=1"
init:
- mobylinux/init:4a731380d1d9b29472c7de165a1cdf93136ab1e7
- mobylinux/runc:b0fb122e10dbb7e4e45115177a61a3f8d68c19a9
- mobylinux/containerd:c7f6ecdcbcb615a53edee556ba03c7c873bc8488
- mobylinux/ca-certificates:eabc5a6e59f05aa91529d80e9a595b85b046f935
onboot:
- name: sysctl
image: "mobylinux/sysctl:2cf2f9d5b4d314ba1bfc22b2fe931924af666d8c"
net: host
pid: host
ipc: host
capabilities:
- CAP_SYS_ADMIN
readonly: true
services:
- name: rngd
image: "mobylinux/rngd:3dad6dd43270fa632ac031e99d1947f20b22eec9@sha256:1c93c1db7196f6f71f8e300bc1d15f0376dd18e8891c8789d77c8ff19f3a9a92"
capabilities:
- CAP_SYS_ADMIN
oomScoreAdj: -800
readonly: true
files:
- path: etc/docker/daemon.json
contents: '{"debug": true}'
outputs:
- format: kernel+initrd
- format: iso-bios
- format: iso-efi