Some game dockerfiles

factorio-Dockerfile

FROM frolvlad/alpine-glibc

MAINTAINER Dave Newman dave@partycloud.com

RUN apk --update add bash curl xz

RUN addgroup -S -g 1000 game && \
    adduser -H -S -u 1000 game && \
    mkdir /data && \
    chown game:game /data

ENV HOME /data
ENV SAVEFILE /data/saves/factorio_save.zip

COPY  run.sh /usr/local/bin/run
RUN   chmod +x /usr/local/bin/*

ENTRYPOINT ["/usr/local/bin/run"]
EXPOSE 34197/udp
USER game:game
VOLUME /data
WORKDIR /data

factorio-run.sh

#!/bin/bash
set -euo pipefail

download-server () {
  local url
  if [ -z "${VERSION-}" ]; then
    url=$(curl --silent -L https://www.factorio.com/download-headless/stable | \
        grep -o -m1 "/get-download/.*/headless/linux64" | \
        awk '{print "https://www.factorio.com"$1}')
  else
    url="https://factorio.com/get-download/$VERSION/headless/linux64"
  fi

  echo "----> Installing new server $url"
  (
    cd /data
    curl --location --remote-name --remote-header-name --silent "$url"
    find . -name '*.tar.xz' -exec tar xJ --strip 1 -f {} \;
    find . -name '*.tar.gz' -exec tar xz --strip 1 -f {} \;
    rm *.tar*
  )
}

start-server () {
  if [ ! -f $SAVEFILE ]; then
    echo "----> Creating a new map"
    /data/bin/x64/factorio --create "$SAVEFILE"
  fi

  local cmd="/data/bin/x64/factorio --start-server $SAVEFILE"
  if [ ! -z "${BIND-}" ]; then
    cmd="$cmd --bind $BIND"
  fi

  exec $cmd
}

# this is super fragile
if [ ! -f /data/bin/x64/factorio ]; then
  download-server
fi

if [ $# -eq 0 ]; then
  start-server
fi

exec "$@"

minecraft-Dockerfile

FROM openjdk:8-alpine
MAINTAINER Dave Newman dave@partycloud.com

RUN apk --no-cache add \
    bash \
    ca-certificates \
    curl \
    jq \
    openssl \
    wget && \
  update-ca-certificates


RUN addgroup -S -g 1000 game && \
    adduser -H -S -u 1000 game && \
    mkdir /data && \
    chown game:game /data

COPY run.sh /usr/local/bin/run
RUN chmod +x /usr/local/bin/*

ENTRYPOINT ["/usr/local/bin/run"]
EXPOSE 25565
USER game:game
VOLUME /data
WORKDIR /data

minecraft-run.sh

#!/bin/bash
set -eu

install-vanilla() {
  MC_VER=$(curl --silent https://launchermeta.mojang.com/mc/game/version_manifest.json | jq -r '.latest.release')
  echo "--- install minecraft vanilla $MC_VER ---"
  curl "https://s3.amazonaws.com/Minecraft.Download/versions/$MC_VER/minecraft_server.$MC_VER.jar" > server.jar
}

install-custom() {
  echo "--- install minecraft modpack $INSTALL ---"
  curl -Lo server.zip "$INSTALL"
  unzip server.zip
  rm server.zip
}

install-server() {
  if [[ ! -f server.jar && ! -f ServerStart.sh ]]; then
    if [ ! -z "${INSTALL-}" ]; then
      install-custom
    else
      install-vanilla
    fi
    echo "eula=true" > eula.txt
  fi
}

start-server() {
  local cmd="java -jar server.jar nogui"
  if [ -f ServerStart.sh ]; then
    chmod +x ServerStart.sh
    cmd="./ServerStart.sh"
  fi

  exec $cmd
}

if [ $# -eq 0 ]; then
  install-server
  start-server
fi

exec "$@"