correct case on Dockerfile

0.17/dockerfile

@@ -1,46 +0,0 @@
-FROM frolvlad/alpine-glibc:alpine-3.9
-
-MAINTAINER https://github.com/dtandersen/docker_factorio_server
-
-ARG USER=factorio
-ARG GROUP=factorio
-ARG PUID=845
-ARG PGID=845
-
-ENV PORT=34197 \
-    RCON_PORT=27015 \
-    VERSION=0.17.0 \
-    SHA1=a700de2076df78f49c9bc3c04546e8128c52175c \
-    SAVES=/factorio/saves \
-    CONFIG=/factorio/config \
-    MODS=/factorio/mods \
-    SCENARIOS=/factorio/scenarios \
-    SCRIPTOUTPUT=/factorio/script-output
-
-RUN mkdir -p /opt /factorio && \
-    apk add --update --no-cache pwgen && \
-    apk add --update --no-cache --virtual .build-deps curl && \
-    curl -sSL https://www.factorio.com/get-download/$VERSION/headless/linux64 \
-        -o /tmp/factorio_headless_x64_$VERSION.tar.xz && \
-    echo "$SHA1  /tmp/factorio_headless_x64_$VERSION.tar.xz" | sha1sum -c && \
-    tar xf /tmp/factorio_headless_x64_$VERSION.tar.xz --directory /opt && \
-    chmod ugo=rwx /opt/factorio && \
-    rm /tmp/factorio_headless_x64_$VERSION.tar.xz && \
-    ln -s $SAVES /opt/factorio/saves && \
-    ln -s $MODS /opt/factorio/mods && \
-    ln -s $SCENARIOS /opt/factorio/scenarios && \
-    ln -s $SCRIPTOUTPUT /opt/factorio/script-output && \
-    apk del .build-deps && \
-    addgroup -g $PGID -S $GROUP && \
-    adduser -u $PUID -G $GROUP -s /bin/sh -SDH $USER && \
-    chown -R $USER:$GROUP /opt/factorio /factorio
-
-VOLUME /factorio
-
-EXPOSE $PORT/udp $RCON_PORT/tcp
-
-COPY files/ /
-
-USER $USER
-
-ENTRYPOINT ["/docker-entrypoint.sh"]