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24 lines
606 B
Docker
24 lines
606 B
Docker
# This Dockerfile extracts the kernel headers from the kernel image
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# and then compiles a simple hello world kernel module against them.
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# In the last stage, it creates a package, which can be used for
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# testing.
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FROM linuxkit/kernel:5.4.156 AS ksrc
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# Extract headers and compile module
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FROM linuxkit/kernel:5.4.156-builder AS build
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RUN apk add build-base elfutils-dev
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COPY --from=ksrc /kernel-dev.tar /
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RUN tar xf kernel-dev.tar
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WORKDIR /kmod
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COPY ./src/* ./
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RUN make all
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# Package
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FROM alpine:3.13
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COPY --from=build /kmod/hello_world.ko /
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COPY check.sh /check.sh
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ENTRYPOINT ["/bin/sh", "/check.sh"]
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