Dockerfile.preload

################################################################################
# Dockerfile that contains Barotrauma Dedicated Server.
# Come with SteamCMD.
# Come with the server installed.
# Will update the server on every start.
#
# SteamCMD part is inspired by: https://github.com/CM2Walki/steamcmd
# BaroServer part is inspired by: https://github.com/gnoeley/barotrauma-dedicated-server-docker
################################################################################

FROM opensuse/leap:15.6

LABEL maintainer="code@yanwk.fun"

# Create a low-privilege user.
RUN set -eux \
    && sed -i 's/^CREATE_MAIL_SPOOL=yes/CREATE_MAIL_SPOOL=no/' /etc/default/useradd \
    && mkdir -p /home/runner \
    && groupadd runner \
    && useradd runner -g runner -d /home/runner \
    && chown runner:runner /home/runner

# Install runtimes & SteamCMD.
# When done, disable all Zypper repos.
COPY resources/microsoft-prod.repo /etc/zypp/repos.d/microsoft-prod.repo

RUN zypper --gpg-auto-import-keys \
        install --no-confirm --no-recommends --auto-agree-with-licenses \
           libicu \
           dotnet-runtime-6.0 \
           libSDL2-2_0-0 \
           steamcmd \
    && zypper modifyrepo --disable --all \
    && rm -rf /var/cache/zypp/*

# Run SteamCMD for the first time, let it update & install some files,
# so other low-privilege users could run it properly.
# Clear /tmp when done.
RUN steamcmd +'quit' \
    && rm -rf /root/Steam/appcache/httpcache/* \ 
    && rm -rf /tmp/*

# Install & run the game server in a low-privilege user.
USER runner:runner

ENV STEAMAPPID=1026340
ENV GAMEDIR="/home/runner/Steam/steamapps/common/Barotrauma Dedicated Server"

# Necessary symlink for SteamCMD.
RUN set -eux \
    && mkdir -p /home/runner/Steam \
    && mkdir -p /home/runner/.steam/sdk32 \
    && mkdir -p /home/runner/.steam/sdk64 \
    && ln -s /usr/lib/steamcmd/linux32/steamclient.so /home/runner/.steam/sdk32/steamclient.so \
    && ln -s /usr/lib/steamcmd/linux64/steamclient.so /home/runner/.steam/sdk64/steamclient.so

# Download the game server and validate.
# Could be skipped to get smaller image size, but have to download more on first run.
RUN steamcmd \
        @ShutdownOnFailedCommand \
        @NoPromptForPassword \
        +login anonymous \
        +app_update ${STEAMAPPID} validate \
        +'quit'

# Preload files from this git repository.
ARG SAVEDIR="${GAMEDIR}/Daedalic Entertainment GmbH/Barotrauma/Multiplayer"
RUN mkdir -p "${SAVEDIR}"
# COPY from Windows will chmod 777, *nix respect original modes.
COPY --chown=runner:runner ["preloads/configs/serversettings.xml","preloads/configs/config_player.xml","${GAMEDIR}/"]
COPY --chown=runner:runner ["preloads/configs/clientpermissions.xml","preloads/configs/karmasettings.xml","${GAMEDIR}/Data/"]
# These COPY instructions work in add/replace mode, and respect subfolder structure.
COPY --chown=runner:runner preloads/submarines/. "${GAMEDIR}/Submarines/"
COPY --chown=runner:runner preloads/multiplayer-saves/. "${SAVEDIR}/"
COPY --chown=runner:runner preloads/mods/. "${GAMEDIR}/LocalMods/"

VOLUME $GAMEDIR

WORKDIR $GAMEDIR

EXPOSE 27015/udp
EXPOSE 27016/udp

# On every start, update SteamCMD.
# On every start, update the game server from Steam, but without validation (or config files will be replaced).
# Have to use root to chown uploaded files. But will run server in low-privilege.
USER root:root
CMD steamcmd +'quit' \
    && rm -rf /tmp/dumps \
    && chown -R runner:runner "${GAMEDIR}/" \
    && su runner -c '\
        steamcmd @ShutdownOnFailedCommand @NoPromptForPassword +login anonymous +app_update ${STEAMAPPID} +'quit' \
        && "${GAMEDIR}/DedicatedServer"\
    '