Nix Dockerfile

FROM ubuntu
RUN apt update && apt install -y sudo && \
mkdir -p /home/user && groupadd -r user && \
useradd -r -g user -d /home/user -s /sbin/nologin -c "User" user && \
echo "user ALL=(root) NOPASSWD:ALL" > /etc/sudoers.d/user && \
chmod 0440 /etc/sudoers.d/user
ENV HOME=/home/user
RUN chown user:user /home/user
RUN apt install -y curl bzip2
USER user
ENV USER user
WORKDIR /home/user
RUN curl https://nixos.org/nix/install | sh
RUN echo . /home/user/.nix-profile/etc/profile.d/nix.sh >> .bashrc