Distcc daemon for running gentoo on a raspberry pi

Dockerfile

FROM gentoo/portage:latest as portage
FROM gentoo/stage3-amd64:latest as gentoo
COPY --from=portage /var/db/repos/gentoo /var/db/repos/gentoo
RUN emerge -1q crossdev
RUN USE="${USE} crossdev" emerge -1q distcc
RUN mkdir -p /var/db/repos/localrepo-crossdev/{profiles,metadata} && \
  echo 'crossdev' > /var/db/repos/localrepo-crossdev/profiles/repo_name && \
  echo "masters = gentoo" > /var/db/repos/localrepo-crossdev/metadata/layout.conf && \
  chown -R portage:portage /var/db/repos/localrepo-crossdev
RUN mkdir -p /etc/portage/repos.conf
RUN ( \
    mkdir -p /etc/portage/repos.conf/ && \
    echo "[crossdev]" && \
    echo "location = /usr/local/portage-crossdev" && \
    echo "priority = 10" && \
    echo "masters = gentoo" && \
    echo "auto-sync = no" \
  ) > /etc/portage/repos.conf/crossdev.conf
RUN ( \
  echo "#!/bin/sh" && \
  echo "eval \"\`gcc-config -E\`\"" && \
  echo "exec distccd \"$@\"" \
  ) > /usr/local/sbin/distccd-launcher && \
  chmod +x /usr/local/sbin/distccd-launcher 


RUN crossdev -t aarch64-unknown-linux-gnu
# TODO: is this needed?
RUN sed -i "s/CFLAGS=,*/CFLAGS= -march=armv8-a\+crc -mtune=cortex-a53 -ftree-vectorize -O2 -pipe -fomit-frame-pointer/" /usr/aarch64-unknown-linux-gnu/etc/portage/make.conf

FROM gentoo as distcc-runner
ENTRYPOINT ["distccd", "--daemon", "--allow-private", "--no-detach", "--log-level", "notice", "--log-stderr", "--allow-private"]

EXPOSE 3632