Adding minecraft server image

minecraft-server/Dockerfile

@@ -0,0 +1,25 @@
+FROM itzg/ubuntu-openjdk-7
+
+MAINTAINER itzg
+
+RUN apt-get update
+RUN apt-get install -y wget libmozjs-24-bin
+RUN update-alternatives --install /usr/bin/js js /usr/bin/js24 100
+
+RUN wget -O /usr/bin/jsawk https://github.com/micha/jsawk/raw/master/jsawk
+RUN chmod +x /usr/bin/jsawk
+
+EXPOSE 25565
+
+ADD run.sh /run
+
+VOLUME ['/data']
+ADD server.properties /tmp/server.properties
+WORKDIR /data
+
+ENTRYPOINT /run
+
+ENV MOTD A Minecraft Server Powered by Docker
+ENV LEVEL world
+ENV JVM_OPTS -Xmx512M -Xms512M
+ENV VERSION 1.7.9

minecraft-server/run.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+case $VERSION in
+  LATEST)
+    export VERSION=`wget -O - https://s3.amazonaws.com/Minecraft.Download/versions/versions.json | jsawk -n 'out(this.latest.release)'`
+    ;;
+
+  SNAPSHOT)
+    export VERSION=`wget -O - https://s3.amazonaws.com/Minecraft.Download/versions/versions.json | jsawk -n 'out(this.latest.snapshot)'`
+    ;;
+esac
+
+cd /data
+
+if [ ! -e minecraft_server.$VERSION.jar ]; then
+  wget https://s3.amazonaws.com/Minecraft.Download/versions/$VERSION/minecraft_server.$VERSION.jar
+fi
+
+if [ ! -e server.properties ]; then
+  cp /tmp/server.properties .
+fi
+
+sed -i "/motd\s*=/ c motd=$MOTD" /data/server.properties
+sed -i "/level-name\s*=/ c level-name=$LEVEL" /data/server.properties
+
+java $JVM_OPTS -jar minecraft_server.$VERSION.jar

minecraft-server/server.properties

@@ -0,0 +1,33 @@
+op-permission-level=4
+allow-nether=true
+level-name=world
+enable-query=false
+allow-flight=false
+announce-player-achievements=true
+server-port=25565
+level-type=DEFAULT
+enable-rcon=false
+force-gamemode=false
+level-seed=
+server-ip=
+max-build-height=256
+spawn-npcs=true
+white-list=false
+spawn-animals=true
+hardcore=false
+snooper-enabled=true
+texture-pack=
+online-mode=true
+resource-pack=
+pvp=true
+difficulty=1
+enable-command-block=false
+player-idle-timeout=0
+gamemode=0
+max-players=20
+spawn-monsters=true
+generate-structures=true
+view-distance=10
+spawn-protection=16
+motd=Welcome Nate and Alex
+