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Let's begin by describing Heroku. Heroku is a cloud application platform a new way of building and deploying web applications,applications (www.heroku.com). 
This guide provides the steps required for creating a Heroku account, instaling Heroku Toolbelt, configuration configuring and last deployment finally deploying in the Heroku environment.

Create a Heroku account

1. Go to www.heroku.com and  hit sign up button, add your credentials and hit Create Free Account.

2. Go to your dashboard to start creating the application environment.  

Installing Heroku toolbelt 

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1. Go to https://toolbelt.heroku.com
2. Hit the download button for you OS. 

3. Once you have created your Heroku account you give your credentials after typing in the command line

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   $ heroku login

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Install the

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heroku-deploy plugin 

 This project is a Heroku toolbelt plugin for deploying WAR files. It can also be used to deploy executable JAR files.

1. Using the Heroku toolbelt you can write in the command line: 

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   $ heroku plugins:install https://github.com/heroku/heroku-deploy

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   Check if the heroku-deploy plugin is installed by typing in the command line

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   $ heroku plugins

   And if everything is ok you will see: 

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   === Installed Plugins

   heroku-deploy

Creating a Heroku application

1. Create a folder for example termweb-heroku in your local drive.
2. Go to the command line and navigate to the created folder from the previous step

3. When you are in the targeted folder type in the command line

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   $ heroku create

   You have now created a Dyno, your virtual environment ready for deploying your application. A random name will be assigned by Heroku, for example obscure-peak-95997

Deploying the

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war file to Heroku

1. In the folder you have created for your app in this case termweb-heroku you must have the following files: 1. .WAR file 2.Procfile.
2. Procfile creation details go to: https://devcenter.heroku.com/articles/procfile

3. As soon as all the required files are in the folder enter the command so as to deploy your code in Heroku:

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   $ heroku deploy:war --war <your war file> --app <your heroku app

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   name>

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1. After the deployment you can now open your application in the browser by typing:

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   $ heroku open --app <your heroku app name>

Database creation

You can go to your Heroku dashboard (https://dashboard.heroku.com/apps), choose your dyno and then go to Add-ons and add Heroku Postgress database, or again by giving the command in the command line:

$ heroku addons:create heroku-postgresql --app <your heroku app name>

Useful configuration commands

These are some configuration commands to display and/or configure Heroku regarding environmental variables and Java options, or just displaying info about the application--

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$ heroku config --app <your heroku app name>

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$ heroku run printenv --app <your heroku app name>

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$ heroku info --app <your heroku app name>

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$ heroku config:add JAVA_OPTS='-Xms128m -Xmx512m' --app <your heroku app name>

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$ heroku restart --app <your heroku app name>

Installation complete

Open your browser and enter https:/yourappname.herokuapp.com/. You should now see the TermWeb login screen. You can log in with client admin, user admin and password admin.

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