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# Dockerfile to create an environment that contains the Nix package manager.
FROM alpine
ARG NIX_VERSION
ENV NIX_VERSION ${NIX_VERSION:-2.3.1}
ARG LANG
ENV LANG ${LANG:-"en_US.UTF-8"}
RUN addgroup -g 30000 -S nixbld \
&& for i in $(seq 1 30); do adduser -S -D -h /var/empty -g "Nix build user $i" -u $((30000 + i)) -G nixbld nixbld$i ; done \
&& adduser -D nixuser \
&& mkdir -m 0755 /nix && chown nixuser /nix \
&& apk add --no-cache bash xz \
&& rm -rf /var/cache/apk/* \
# sandboxing enabled by default since 2.2
&& mkdir -p /etc/nix && echo 'sandbox = false' > /etc/nix/nix.conf
USER nixuser
ENV USER=nixuser
ENV HOME="/home/nixuser"
RUN cd && wget https://nixos.org/releases/nix/nix-$NIX_VERSION/nix-$NIX_VERSION-x86_64-linux.tar.xz \
&& tar xJf nix-*-x86_64-linux.tar.xz \
&& ~/nix-*-x86_64-linux/install \
&& rm -rf ~/nix-*-*
ENV ENV="/home/nixuser/.nix-profile/etc/profile.d/nix.sh"
RUN echo ". ${ENV}" >> ${HOME}/.profile
# All subsequent "RUN" will use a login shell
SHELL ["/usr/bin/env", "bash", "-l", "-c"]
RUN nix-channel --add https://nixos.org/channels/nixpkgs-19.09-darwin nixpkgs \
&& nix-channel --add https://nixos.org/channels/nixpkgs-unstable unstable \
&& nix-channel --update
# Propagate UTF8
# https://github.com/NixOS/nix/issues/599#issuecomment-153885553
# The same is hapenning with stack2nix
RUN nix-env -iA nixpkgs.glibcLocales
# < Nix context as a volume
# We want to be able to define /nix/store as a volume
# We thus need to "save" the current nix context to be able
# to restore it at startup time
RUN cp -R /nix /home/nixuser/initial-nix
VOLUME ["/nix"]
# Create bash profile
COPY --chown=nixuser:nixuser files/.profile ${HOME}/.profile
# />
# Make sure to use "login" shell when running container
ENTRYPOINT ["/usr/bin/env", "bash", "-l", "-c"]
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