init

Dockerfile

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+# base gentoo image set up
+FROM gentoo/portage:latest as portage
+FROM gentoo/stage3:latest
+COPY --from=portage /var/db/repos/gentoo /var/db/repos/gentoo
+
+# emerge clang and distcc
+RUN emerge -qv clang distcc
+
+# create log file, update path and distcc links
+RUN mkdir -p /var/log && touch /var/log/distccd.log && chown distcc:daemon /var/log/distccd.log
+ENV ENV="/root/.bashrc"
+RUN echo "source /etc/profile" > $ENV
+RUN eselect compiler-shadow update
+
+# run container starting distccd process and forwarding tcp port, example settings below to accept connections on local network:
+# docker run -p 3632:3632 --rm -dt <container name> distccd --daemon --allow-private --log-file /var/log/distccd.log --log-level notice --no-detach
+
+# consult gentoo wiki for setting up distcc on client
+
+# test gcc and clang on gentoo client with some small package, like the below:
+# emerge -v htop
+# CC="clang" CXX="clang++" emerge -v htop