Dockerfile

FROM debian:jessie
ARG DEBIAN_VERSION="jessie"

MAINTAINER newtork / Alexander Dümont <alexander_duemont@web.de>


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#                                        #
#    Docker Build                        #
#                                        #
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#
# USAGE
# -----
#   docker pull newtork/openttd
#   docker build -t newtork/openttd .
#




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#                                        #
#    Docker Run                          #
#                                        #
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#
# USAGE
# -----
#	docker run -dit -p 3979:3979/tcp -p 3979:3979/udp newtork/openttd [savegame] [settings] [servername]
#
#	\_____________/ \_______________________________/ \_____________/  \______/  \________/  \_________/
#          |                        |                      |              |           |            |
#     interactive       required port forwarding      maintainer     save game   config string   public game
#      detached          destination port can be        build          name      \n-seperated    server name
#      terminal           changed as required                           
#




##########################################
#                                        #
#    Build Settings / Environment        #
#                                        #
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# start in root
# everything is in root
WORKDIR /root/


# two scripts needed for running
ENV UPLOAD_SCRIPT_CONFIG="cfg.update.sh" \
	UPLOAD_SCRIPT_WRAPPER="openttd.wrapper.sh"

# one script and a default config file needed for building
ARG UPLOAD_SCRIPT_DOWNLOAD="dl.checked.sh"
ARG UPLOAD_INPUT_CONFIG="cfg.patches.cfg"

# (Binary) Download instructions as link + xpath
ARG OTTD_BINARY_DOWNLOADS="https://www.openttd.org/en/download-stable"
ARG OTTD_BINARY_DOWNLOADS_ITEM_XPATH="id(\"stable-data\")/*[contains(@id, \"-linux-debian-$DEBIAN_VERSION-amd64.deb\")][1]"

# (Assets) Download instructions a link + xpath
ARG OTTD_ASSETS_DOWNLOADS="https://www.openttd.org/en/download-opengfx"
ARG OTTD_ASSETS_DOWNLOADS_ITEM_XPATH="id(\"opengfx-data\")/*[contains(@id, \"-all.zip\")][1]"
ARG OTTD_ASSETS_TARGET="/root/.openttd/baseset/"


# Just copy everything, we'll work in /root/
COPY *.sh *.cfg /root/

# Default game server port is 3979
# Keep in mind that TCP AND UDP are needed
EXPOSE 3979





##########################################
#                                        #
#    OpenTTD Download/Setup/Configure    #
#                                        #
##########################################

#
#   Build-Process:
#   --------------
#
#   1)  Download dependencies: curl and libxml2
#   2)  Download and verify the latest OpenTTD Debian package
#   3)  Install the debian package file with dpkg
#   4)	Make apt-get install the missing dependencies to the new package
#   5)  Download and verify the latest OpenTTD Asset files, needed to run the server
#   6)  Extract the asset files to the game baseset directory
#   7)  Start the server to generate vanilla config, quit it immediately and patch the config file
#
#

RUN chmod -f +x /root/*.sh && \
\
	echo "[1/7] Preparing installation dependencies..." && \
	apt-get -qq update && \
	apt-get -qqy install libxml2-utils --no-install-recommends > /dev/null 2>&1 && \
	apt-get -qqy install curl > /dev/null 2>&1 && \
\
	echo "[2/7] Downloading installation files..." && \
	binary_tmp=$(mktemp) && \
	/root/$UPLOAD_SCRIPT_DOWNLOAD "$OTTD_BINARY_DOWNLOADS" "$OTTD_BINARY_DOWNLOADS_ITEM_XPATH" $binary_tmp && \
\
	echo "[3/7] Installing OpenTTD server..." && \
	dpkg --force-all -i $binary_tmp > /dev/null 2>&1 && \
\
	echo "[4/7] Installing missing dependencies and cleaning up..." &&\
	apt-get -fqqy install > /dev/null 2>&1 && \
	rm -f $binary_tmp && \
	echo "      OTTD has been successfully installed." && \
\
	echo "[5/7] Downloading Asset files..." && \
	mkdir -p $OTTD_ASSETS_TARGET && \
	assets_tmp=$(mktemp) && \
	/root/$UPLOAD_SCRIPT_DOWNLOAD "$OTTD_ASSETS_DOWNLOADS" "$OTTD_ASSETS_DOWNLOADS_ITEM_XPATH" $assets_tmp && \
\
	echo "[6/7] Extracting files and clean up..." && \
	tar -xzf $assets_tmp -C "$OTTD_ASSETS_TARGET" && \
	rm -f $assets_tmp && \
\
	echo "[7/7] Testrun the vanilla server..." && \
	echo "quit" | /usr/games/openttd -D > /dev/null 2>&1 && \
	/root/$UPLOAD_SCRIPT_CONFIG /root/$UPLOAD_INPUT_CONFIG && \
\
	echo "      Done."
	

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#                                             #
#    START                                    #
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# Use the server wrapper file, no default CMD / arguments
ENTRYPOINT ["/root/openttd.wrapper.sh"]