Dockerfile

# Updated as of Aug 16, 2017
# Install FROM UBUNTU IMAGE
FROM ubuntu:16.04

#Author of the Docker File
# MAINTAINER Pictolearn Note: MAINTAINER has been deprecated for LABEL, 
# LABEL is a key value pair 
LABEL "Maintainer"="Pictolearn"

# RUN COMMAND BASICALLY runs the command in the terminal and creates an image.
# Install all the updates for UBUNTU
RUN apt-get update && apt-get install -y python-software-properties software-properties-common

# Install all the updates for UBUNTU
RUN apt-get install -y iputils-ping

# Adds the repository where JDK 8 can be obtained for UBUNTU
RUN add-apt-repository ppa:webupd8team/java

# INSTALL THE VI EDITOR AND MYSQL-CLIENT
RUN apt-get install -y vim
RUN apt-get install -y mysql-client

# NOTE and WARNING: ORACLE JDK is no longer licensed. Please install default jdk or OPEN JDK. 
# The initial set up was to get this working with JDK 7 but when the licensing terms for oracle changing we will install the default JDK
# INSTALL ORACLE JDK 8 BY ACCEPTING YES
# RUN echo "oracle-java8-installer shared/accepted-oracle-license-v1-1 boolean true" | debconf-set-selections
#INSTALL ALL the updates again and install MAVEN and JDK 8
# RUN apt-get update && apt-get install -y oracle-java8-installer maven
RUN apt-get update && apt-get install -y default-jdk maven


# ADD a directory called docker-git-hello-world inside the UBUNTU IMAGE where you will be moving all of these files under this 
# DIRECTORY to
ADD . /usr/local/docker-git-hello-world

# AFTER YOU HAVE MOVED ALL THE FILES GO AHEAD CD into the directory and run mvn assembly.
# Maven assembly will package the project into a JAR FILE which can be executed
RUN cd /usr/local/docker-git-hello-world && mvn assembly:assembly

#THE CMD COMMAND tells docker the command to run when the container is started up from the image. In this case we are
# executing the java program as is to print Hello World.
CMD ["java", "-cp", "/usr/local/docker-git-hello-world/target/docker-git-hello-world-0.0.1-SNAPSHOT-jar-with-dependencies.jar", "org.pictolearn.docker.HelloWorldPing"]