Dockerfile for Debian 7 (Wheezy) , Oracle JDK 7 , and default user creation

Dockerfile

# (c) Azamshul Azizy, 2014
#
# Original files:
# https://github.com/dockerfile/java/tree/master/oracle-java7
# https://github.com/clifton/docker-debian-base/master/Dockerfile

# Pull base image.
FROM debian:7
MAINTAINER Azamshul Azizy <[email protected]>

# Add apt sources
RUN echo "deb http://ftp.us.debian.org/debian/ wheezy main contrib non-free" > /etc/apt/sources.list
RUN echo "deb-src http://ftp.us.debian.org/debian/ wheezy main contrib non-free" >> /etc/apt/sources.list
RUN echo "deb http://security.debian.org/ wheezy/updates main contrib non-free" >> /etc/apt/sources.list
RUN echo "deb-src http://security.debian.org/ wheezy/updates main contrib non-free" >> /etc/apt/sources.list
RUN echo "deb http://ftp.us.debian.org/debian/ wheezy-updates main contrib non-free" >> /etc/apt/sources.list
RUN echo "deb-src http://ftp.us.debian.org/debian/ wheezy-updates main contrib non-free" >> /etc/apt/sources.list
RUN echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" >> /etc/apt/sources.list
RUN echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" >> /etc/apt/sources.list
RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886

ENV DEBIAN_FRONTEND noninteractive

# Update apt packages
RUN apt-get update
RUN apt-get -y upgrade
RUN apt-get -y dist-upgrade
RUN apt-get -y install curl sudo

# Install Java.
RUN echo oracle-java7-installer shared/accepted-oracle-license-v1-1 select true | debconf-set-selections
RUN apt-get install -y oracle-java7-installer

# Clean up
RUN rm -rf /var/lib/apt/lists/*
RUN rm -rf /var/cache/oracle-jdk7-installer
RUN apt-get clean

# Set up users
RUN \
  groupadd -g 433 -r appuser && \
  mkdir /home/appuser && \
  useradd -u 431 -r -g appuser -d /home/appuser -s /sbin/nologin -c "appuser" appuser && \
  chown -R appuser:appuser /home/appuser

# Change user
USER appuser

# Define working directory
WORKDIR /home/appuser

# Define commonly used JAVA_HOME variable
ENV JAVA_HOME /usr/lib/jvm/java-7-oracle

# Expose port
EXPOSE 80

# Define default command.
CMD ["java -version"]