Added Dockerfile for required build environment

Dockerfile

@@ -0,0 +1,112 @@
+FROM debian:jessie
+
+MAINTAINER <[email protected]>
+
+# Setting up Docker image to replicate "hello-scaloid-sbt" project
+# https://github.com/pocorall/hello-scaloid-sbt
+
+####################################
+# Install important packages
+####################################
+RUN echo "Acquire::Retries 20;" >> /etc/apt/apt.conf
+RUN apt-get update && apt-get -y install aptitude
+RUN aptitude update && aptitude -y --without-recommends install \
+  wget curl mc sudo git usbutils unzip \
+  openjdk-7-jdk lib32z1 lib32ncurses5 g++-multilib
+
+####################################
+# Install SBT
+####################################
+RUN curl -# -L https://dl.bintray.com/sbt/debian/sbt-0.13.8.deb > /tmp/sbt-0.13.8.deb && \
+      dpkg -i /tmp/sbt-0.13.8.deb
+
+####################################
+# Create new user "scaloid"
+####################################
+ENV NEW_USER=scaloid
+
+RUN adduser --disabled-password --gecos '' ${NEW_USER}
+
+# Make him a sudoer
+RUN echo "${NEW_USER} ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/${NEW_USER} && \
+	  chmod 0440 /etc/sudoers.d/${NEW_USER}
+
+####################################
+# Switching to user-level
+####################################
+USER ${NEW_USER}
+WORKDIR /home/${NEW_USER}/
+
+####################################
+# Set up Android SDK
+####################################
+# Download and install Android SDK
+ENV ANDROID_SDK_URL http://dl.google.com/android/android-sdk_r24.3.3-linux.tgz
+RUN wget --progress=bar:force --tries=99 ${ANDROID_SDK_URL} -O /tmp/android_sdk.tgz && \
+  tar xzf /tmp/android_sdk.tgz -C /home/${NEW_USER}/
+
+# Install Android SDK components
+# do `android list sdk --all -e` to see all available sdk packages
+ENV ANDROID_HOME /home/${NEW_USER}/android-sdk-linux
+ENV ANDROID_SDK_COMPONENTS platform-tools,build-tools-21.1.2,android-21,android-16,extra-android-support,addon-google_apis-google-21,sys-img-x86_64-addon-google_apis-google-21
+RUN echo y | ${ANDROID_HOME}/tools/android update sdk --no-ui --all --filter "${ANDROID_SDK_COMPONENTS}"
+
+ENV JAVA_HOME /usr/lib/jvm/java-7-openjdk-amd64
+RUN echo "export ANDROID_HOME=${ANDROID_HOME}" >> /home/${NEW_USER}/.bashrc
+RUN echo "export JAVA_HOME=${JAVA_HOME}" >> /home/${NEW_USER}/.bashrc
+RUN echo "export DISPLAY=:0" >> /home/${NEW_USER}/.bashrc
+
+####################################
+# Set up the project itself
+####################################
+# Git clone the project
+RUN git clone https://github.com/pocorall/hello-scaloid-sbt
+
+# Let sbt download what it needs
+RUN cd /home/${NEW_USER}/hello-scaloid-sbt && sbt android:package &&\
+    ${ANDROID_HOME}/tools/android update project -p .
+
+####################################
+# Add IDEA + Plugins
+####################################
+# Download and install IntelliJ IDEA
+RUN wget --progress=bar:force --tries=99\
+    https://download.jetbrains.com/idea/ideaIC-14.1.4.tar.gz -O /tmp/idea.tar.gz && \
+    tar xzf /tmp/idea.tar.gz -C /home/${NEW_USER}/ && \
+    mv /home/${NEW_USER}/idea-IC-141.1532.4 /home/${NEW_USER}/idea
+
+# Make a runnable script for launching IDEA w/o terminal
+RUN echo '#!/bin/bash' > /home/${NEW_USER}/idea/bin/idea-run
+RUN echo "nohup /home/${NEW_USER}/idea/bin/idea.sh 2>/dev/null &" >> /home/${NEW_USER}/idea/bin/idea-run
+RUN chmod 755 /home/${NEW_USER}/idea/bin/idea-run
+
+RUN echo "export PATH=\${PATH}:${ANDROID_HOME}/tools/:${ANDROID_HOME}/platform-tools/:/home/${NEW_USER}/idea/bin/" >> /home/${NEW_USER}/.bashrc
+
+# Install plugins
+RUN mkdir -p /home/${NEW_USER}/.IdeaIC14/config/plugins 
+RUN cd /home/${NEW_USER}/.IdeaIC14/config/plugins &&\
+  wget --progress=bar:force --tries=99\
+  http://plugins.jetbrains.com/files/1347/20041/scala-intellij-bin-1.5.2.zip -O scala-plugin.zip && unzip scala-plugin.zip &&\
+  wget --progress=bar:force --tries=99\
+  http://plugins.jetbrains.com/files/5007/19457/idea-sbt-plugin-1.7.0.zip -O sbt-plugin.zip && unzip sbt-plugin.zip &&\
+  rm -f *.zip
+
+ENV DISPLAY :0
+
+# DONE!
+
+####################################
+# Use of Dockerfile
+####################################
+# Build the docker image ON THE HOST:
+# $ docker build -t scaloid .
+# 
+## Since USB access is required to deploy the app
+## do the following ON THE HOST:
+# $ adb kill-server
+# $ export XSOCK=/tmp/.X11-unix/X0
+# $ xhost +localhost
+# $ docker run --privileged -v $XSOCK:$XSOCK -v /dev/bus/usb:/dev/bus/usb -it <image>
+# This allows one to connect to USB devices and thus, deploy the app on the phone directly from Docker
+## For very secure way (using XAuthority) see:
+## https://stackoverflow.com/questions/16296753/can-you-run-gui-apps-in-a-docker-container/25280523#25280523