Dockerfile

# build ioquake3
FROM alpine:latest AS ioquake3-build

ADD ./ioq3 /build

ENV \
    BUILD_STANDALONE=0 \
    BUILD_CLIENT=0 \
    BUILD_SERVER=1 \
    BUILD_GAME_SO=0 \
    BUILD_GAME_QVM=0 \
    BUILD_BASEGAME=1 \
    BUILD_MISSIONPACK=0 \
    BUILD_AUTOUPDATER=0 \
    USE_CURL=1 \
    USE_CURL_DLOPEN=0 \
    USE_INTERNAL_LIBS=0 \
\
    DEFAULT_BASEDIR=/quake \
    COPYDIR=/build/tempinstall

WORKDIR /build

RUN \
    apk update && apk upgrade && \
    apk --no-cache add curl g++ gcc make zlib-dev && \
\
    mkdir tempinstall/bin/ -pv && \
    make && make copyfiles

# move the bins to the actual image
FROM alpine:latest AS ioquake3

RUN \
    addgroup -g 1337 quake && \
    adduser -D -h /home/quake -G quake -u 1337 quake && \
    mkdir -pv /home/quake/.q3a/baseq3 && \
    ln -sfv /config/dockerquake.cfg /home/quake/.q3a/baseq3/

COPY --from=ioquake3-build /build/tempinstall/ioq3ded.x86_64 /quake/
COPY static /static

EXPOSE 27960/udp
CMD /static/shell/entrypoint.sh