Dockerfile.base-devel 1.33 KB
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# We're using a multistage Docker build here in order to allow us to release a self-verifying
# Docker image when built on the official Docker infrastructure.
# They require us to verify the source integrity in some way while making sure that this is a
# reproducible build.
# See https://github.com/docker-library/official-images#image-build
# In order to achieve this, we externally host the rootfs archives and their checksums and then
# just download and verify it in the first stage of this Dockerfile.
# The second stage is for actually configuring the system a little bit.
# Some templating is done in order to allow us to easily build different configurations and to
# allow us to automate the releaes process.
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FROM alpine:3.12 AS verify
RUN apk add --no-cache curl bash
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SHELL ["/bin/bash", "-c"]
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# https://gitlab.archlinux.org/archlinux/archlinux-docker/-/releases/v20210306.0.16644
RUN ROOTFS="$(curl -sOJL --continue-at - -w "%{filename_effective}" https://gitlab.archlinux.org/archlinux/archlinux-docker/-/package_files/627/download)" && \
    sha256sum -c <<< "df58b98ab2667217f5105bc0c37ad3b837dff65b65c39bd97bf67f2a5c6821aa  base-devel-20210306.0.16644.tar.xz" && \
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    mkdir /rootfs && \
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    tar -C /rootfs --extract --file "${ROOTFS}"
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FROM scratch AS root
COPY --from=verify /rootfs/ /

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RUN ldconfig
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ENV LANG=en_US.UTF-8
CMD ["/usr/bin/bash"]