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Introduction

This guide is all about deploying OSCAR in the most minimalist way not using the DEB packaging. Why? You may want to customize how the system is deployed to better match your current processes. Being able to quickly change Java and Tomcat versions can also be a benefit of this type of install.

Prerequisites

You'll need more skills than the DEB installation. Make sure you're well versed with

  1. Linux 14.04 install
  2. GIT
  3. MySQL
  4. Tomcat7

Install mysql

Generally, it's best to stick to the Ubuntu packages. When you install mysql from Ubuntu 14.04.5 you get MySQL 5.5 which is what OSCAR EMR has been mostly used against in the real world. Be prepared for some potential problems if you go for Ubuntu 16.04 at the time of writing.


sudo apt-get install mysql-server

Install Java

The best thing to do is to install the ORACLE JRE from the binary package into a single directory, and then softlink to it. Then it's easy to update Java at any time without having to 

  1. Uninstall your current installation
  2. Change environment variables

Begin by downloading the Java SE Development Kit 8 for your Architecture (tar.gz) and installing it in /opt. Note that your versions/directory could be different.

sudo tar -xzvf jdk-8u121-linux-x64.tar.gz -C /opt
sudo ln -s /opt/jdk1.8.0_121 /opt/java


Update your Environment 

echo "export JAVA_HOME=/opt/java" >> ~/.profile 
echo "export PATH=\$JAVA_HOME/bin:\$PATH" >> ~/.profile
source ~/.profile


Check that you're all good

$java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)



Install Apache Tomcat

Apache Tomcat installs can be done in very much the same way we handled Java installations. Download the latest Tomcat from Apache. You're going to want the latest 8.0.x binary distribution (.tar.gz) as of the date on this document.

Follow the following commands, changing the versions where it makes sense.

Note: This isn't meant for a production environment or anything. Remember minimalist approach in this document. You should really create a tomcat user, and make CATALINA_BASE writeable for that user. This is really just to demonstrate the basic steps for a workable setup.

sudo tar -xzvf apache-tomcat-8.0.41.tar.gz -C /opt
sudo ln -s /opt/apache-tomcat-8.0.41 /opt/tomcat
sudo chown -R marc:marc /opt/apache-tomcat-8.0.41 #replace marc:marc with your username:group..whoami


Start it up

$/opt/tomcat/bin/startup.sh 
Using CATALINA_BASE:   /opt/tomcat
Using CATALINA_HOME:   /opt/tomcat
Using CATALINA_TMPDIR: /opt/tomcat/temp
Using JRE_HOME:        /opt/java
Using CLASSPATH:       /opt/tomcat/bin/bootstrap.jar:/opt/tomcat/bin/tomcat-juli.jar
Tomcat started.


Access it at http://localhost:8080/ (or whatever IP you're using)

Install OSCAR EMR

Ok, that was the warmup. OSCAR EMR needs a few things to run

  • an initialized database
  • a properties file with a few minimal settings
  • a WAR


We start by choosing a version to install, and grabbing the artifacts. This is available on JENKINS (OSCAR EMRs Continuous Integration System). Here is the link for the latest OSCAR 15 (Even more recent than DEBs, this is equivalent to nightly builds).

https://demo.oscarmcmaster.org:11042/job/oscar15BetaMaster/lastSuccessfulBuild/artifact/

Let's download everything in a zip

https://demo.oscarmcmaster.org:11042/job/oscar15BetaMaster/lastSuccessfulBuild/artifact/*zip*/archive.zip


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