fix root user as default for app (#9)

- fix #8

Dockerfile

@@ -1,10 +1,8 @@
-ARG APPDIR="/root/hlds"
 ARG APPID="90"
 ARG MOD="valve"
 
 FROM debian:trixie-slim AS build_stage
 
-ARG APPDIR
 ARG APPID
 ARG MOD
 ARG APPBRANCH=""
@@ -25,21 +23,23 @@ ARG DepotDownloader_URL="https://github.com/SteamRE/DepotDownloader/releases/dow
 RUN curl -L# ${DepotDownloader_URL} | bsdtar -xvf - -C /usr/local/bin/ \
     && chmod +x /usr/local/bin/DepotDownloader
 
+ENV APPDIR=/root/hlds
+WORKDIR ${APPDIR}
+
 COPY --chmod=755 utils/* utils/
 
 # Download mod depots
 RUN DEPOTS=$(utils/getDepotsByMod.sh ${MOD}) \
     && for depot in ${DEPOTS}; do \
        DepotDownloader -dir ${APPDIR} -app ${APPID} -depot ${depot} -beta ${APPBRANCH}; \
-   done \
-    && rm -rf ${APPDIR}/.DepotDownloader
+   done
 
 # Fix first run crash and STEAM Validation rejected issue
 RUN cp ${APPDIR}/${MOD}/steam_appid.txt ${APPDIR}
 
 # Remove unnecessary files
-RUN rm -rf ${APPDIR}/linux64 \
-    && find ${APPDIR} \( \
+RUN rm -rf linux64 .DepotDownloader utils/ \
+    && find . \( \
         -name '*64.so'  -o \
         -name '*.dll'   -o \
         -name '*.dylib' \
@@ -56,22 +56,28 @@ RUN set -x \
        lib32stdc++6=14-20240201-3 \
     && rm -rf /var/lib/apt/lists/*
 
-ARG APPDIR
+ARG APPUSER="hlds_user"
+ENV APPUSER=${APPUSER}
+ENV APPDIRNAME="hlds"
+
+# Create a new user
+RUN useradd -m -s /bin/bash ${APPUSER}
+USER ${APPUSER}
 
 # Copy HLDS files from build stage
-COPY --from=build_stage ${APPDIR} ${APPDIR}
+COPY --chown=${APPUSER}:${APPUSER} --from=build_stage /root/hlds home/${APPUSER}/${APPDIRNAME}
 
 # Create symbolic links for steamclient.so
-RUN mkdir -p ~/.steam/sdk32/ \
-    && ln -s ${APPDIR}/steamclient.so ~/.steam/sdk32/steamclient.so \
-    && ln -s ${APPDIR}/steamclient.so ${APPDIR}/steamservice.so
-
-WORKDIR ${APPDIR}
+RUN mkdir -p ${HOME}/.steam/sdk32/ \
+    && ln -s ${HOME}/${APPDIRNAME}/steamclient.so /home/${APPUSER}/.steam/sdk32/steamclient.so \
+    && ln -s ${HOME}/${APPDIRNAME}/steamclient.so ${HOME}/${APPDIRNAME}/steamservice.so
 
 EXPOSE 26900-27020/udp
 
 ARG MOD
 ENV MOD=${MOD}
 
+WORKDIR /home/${APPUSER}/${APPDIRNAME}
+
 # Set default command
-CMD ["sh", "-c", "./hlds_run -game ${MOD} +ip 0.0.0.0 -port 27016 +map $(head -n 1 ./${MOD}/mapcycle.txt)"]
+CMD ["bash", "-c", "./hlds_run -game ${MOD} +ip 0.0.0.0 -port 27016 +map $(head -n 1 ./${MOD}/mapcycle.txt)"]