Building a Corda VM from the AWS Marketplace
============================================

To help you design, build and test applications on Corda, called CorDapps, a Corda network AMI can be deployed from the `AWS Marketplace <https://aws.amazon.com/marketplace/pp/B077PG9SP5>`_. Instructions on running Corda nodes can be found `here <https://docs.corda.net/deploying-a-node.html>`_.

This Corda network offering builds a pre-configured network of Corda nodes as Ubuntu virtual machines (VM). The network consists of a Notary node and three Corda nodes using version 1 of Corda. The following guide will also show you how to load one of four `Corda Sample apps <https://www.corda.net/samples>`_ which demonstrates the basic principles of Corda. When you are ready to go further with developing on Corda and start making contributions to the project head over to the `Corda.net <https://www.corda.net/>`_.

Pre-requisites
--------------
* Ensure you have a registered AWS account which can create virtual machines under your subscription(s) and you are logged on to the `AWS portal <https://console.aws.amazon.com>`_
* It is recommended you generate a private-public SSH key pair (see `here <https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2/>`_)


Deploying a Corda Network
---------------------------

Browse to the `AWS Marketplace <https://aws.amazon.com/marketplace>`_ and search for Corda.

Follow the instructions to deploy the AMI to an instance of EC2 which is in a region near to your location.

Build and Run a Sample CorDapp
------------------------------
Once the instance is running ssh into the instance using your keypair

.. sourcecode:: shell

    cd ~/dev

There are 4 sample apps available by default

.. sourcecode:: shell

    ubuntu@ip-xxx-xxx-xxx-xxx:~/dev$ ls -la
    total 24
    drwxrwxr-x  6 ubuntu ubuntu 4096 Nov 13 21:48 .
    drwxr-xr-x  8 ubuntu ubuntu 4096 Nov 21 16:34 ..
    drwxrwxr-x 11 ubuntu ubuntu 4096 Oct 31 19:02 cordapp-example
    drwxrwxr-x  9 ubuntu ubuntu 4096 Nov 13 21:48 obligation-cordapp
    drwxrwxr-x 11 ubuntu ubuntu 4096 Nov 13 21:48 oracle-example
    drwxrwxr-x  8 ubuntu ubuntu 4096 Nov 13 21:48 yo-cordapp

cd into the Corda sample you would like to run. For example:

.. sourcecode:: shell

    cd cordapp-example/

Follow instructions for the specific sample at https://www.corda.net/samples to build and run the Corda sample
For example: with cordapp-example (IOU app) the following commands would be run:

.. sourcecode:: shell

    ./gradlew deployNodes
    ./kotlin-source/build/nodes/runnodes

Then start the Corda webserver

.. sourcecode:: shell

    find ~/dev/cordapp-example/kotlin-source/ -name corda-webserver.jar -execdir sh -c 'java -jar {} &' \;

You can now interact with your running CorDapp. See the instructions `here <https://docs.corda.net/tutorial-cordapp.html#via-http>`_

Next Steps
----------
Now you have built a Corda network and used a basic Corda Cordapp do go and visit the `dedicated Corda website <https://www.corda.net>`_

Additional support is available on `Stack Overflow <https://stackoverflow.com/questions/tagged/corda>`_ and the `Corda Slack channel <https://slack.corda.net/>`_.

You can build and run any other `Corda samples <https://www.corda.net/samples>`_ or your own custom CorDapp here.

Or to join the growing Corda community and get straight into the Corda open source codebase, head over to the `Github Corda repo <https://www.github.com/corda>`_