SquadDocker/Dockerfile

# syntax=docker/dockerfile:1.4

# hadolint global ignore=DL3003,DL3008

FROM asgard-eternal.com/steamcmd:latest AS build-squad
LABEL maintainer="price@orion-technologies.io"

ARG steam_app_id=403240
ARG steam_beta_app_id=774961
ARG steam_beta_password=""
ARG steam_beta_branch=""
ARG use_squad_beta=0

ENV RCON_PASSWORD=""
ENV SQUAD_SERVER_DIR="${USER_HOME}/Squad-Server"
ENV GAMEPORT=7787 \
    QUERYPORT=27165 \
    RCONPORT=21114 \
    FIXEDMAXPLAYERS=98 \
    BEACONPORT=15000 \
    FIXEDMAXTICKRATE=45 \
    RANDOM=NONE


SHELL [ "/bin/bash", "-c" ]

RUN <<__EOR__
apt-get update

apt-get install -y --no-install-suggests --no-install-recommends \
    lsb-release=12.0-1 \
    apt-transport-https=2.6.1 \
    gnupg=2.2.40-1.1

rm -rf /var/lib/apt/lists/*
__EOR__

# HACK: Hard coding the user to be "steam" is not great, but I'm too lazy to really do this the
# *right* way (which is making sure the USER ends up as steam via an entry point up in the steamcmd
# image). For now, this will have to do.
USER steam

RUN <<__EOR__
if (( use_squad_beta == 1 )); then
    # Install Squad from the Beta branch
    "${STEAM_CMD_INSTALL_DIR}/steamcmd.sh" \
        +force_install_dir "${SQUAD_SERVER_DIR}" \
        +login anonymous \
        +app_update ${steam_app_id} validate \
        -beta "${steam_beta_branch}" \
        -betapassword "${steam_beta_password}" \
        +quit
else
    # Install Squad from the release version
    "${STEAM_CMD_INSTALL_DIR}/steamcmd.sh" \
        +force_install_dir "${SQUAD_SERVER_DIR}" \
        +login anonymous \
        +app_update ${steam_app_id} validate \
        +quit
fi
__EOR__

FROM build-squad AS mods

ARG workshop_id=393380
ARG mods=""

SHELL [ "/bin/bash", "-c" ]

RUN <<__EOR__
# Install mods as part of image
printf "Provided mods list: %s\n" "${mods}"
IFS="," read -ra squad_mods <<< "${mods}"
for mod in "${squad_mods[@]}"; do
    printf "\n\n######\nAdding mod: %s\n######\n\n" "${mod}"
    counter=0
    until "${STEAM_CMD_INSTALL_DIR}/steamcmd.sh" \
        +force_install_dir "${SQUAD_SERVER_DIR}/steamapps/workshop/content/${workshop_id}/${mod}" \
        +login anonymous \
        +workshop_download_item "${workshop_id}" "${mod}" validate \
        +quit; do
        printf "\nDid Not Fully Download %s, making another attempt.\n" "${mod}"
        (( counter++ ))
        if (( counter > 5 )); then
            printf "Critical failure, could not download the mod: %s\n" "${mod}"
            exit 1
        fi
    done


    # Link the mod instead of moving it into place, this allows steamcmd to update the mod in place if for whatever
    # reason that becomes necessary. In reality nightly builds/builds via CI should update these mods. More of a nicety
    # than something necessary.
    ln -s "${SQUAD_SERVER_DIR}/steamapps/workshop/content/${workshop_id}/${mod}" "${SQUAD_SERVER_DIR}/SquadGame/Plugins/Mods/${mod}"
done

__EOR__


FROM mods AS prod
WORKDIR "${USER_HOME}"
COPY --chown=${USER}:${USER} --chmod=0744 ./scripts/entry.bash "${USER_HOME}/entry.bash"

EXPOSE \
    7787/udp \
    7787/tcp \
    7788/udp \
    7788/tcp \
    27165/tcp \
    27165/udp \
    21114/tcp \
    21114/udp \
    15000/udp

# HACK: This shouldn't be done either! The entry.bash requires the root user though for certain tasks :(
USER root
ENTRYPOINT [ "/bin/bash", "entry.bash" ]