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Setting up the development environment

Overview

The current development environment utilizes Vagrant running an Ubuntu image, which in turn launches Docker containers. Conceptually, the Host launches a VM, which in turn launches Docker containers.

Host -> VM -> Docker

This model allows developers to leverage their favorite OS/editors and execute the system in a controlled environment that is consistent amongst the development team.

  • Note that your Host should not run within a VM. If you attempt this, the VM within your Host may fail to boot with a message indicating that VT-x is not available.

Prerequisites

  • Note: The BIOS Enabled Virtualization may be within the CPU or Security settings of the BIOS

Steps

Set your GOPATH

Make sure you have properly setup your Host's GOPATH environment variable. This allows for both building within the Host and the VM.

Note to Windows users

If you are running Windows, before running any git clone commands, run the following command.

git config --get core.autocrlf

If core.autocrlf is set to true, you must set it to false by running

git config --global core.autocrlf false

If you continue with core.autocrlf set to true, the vagrant up command will fail with the error ./setup.sh: /bin/bash^M: bad interpreter: No such file or directory

Cloning the Open Blockchain Peer project

Create a fork of the obc-peer repository using the GitHub web interface. Next, clone your fork in the appropriate location.

cd $GOPATH/src
mkdir -p github.com/openblockchain
cd github.com/openblockchain
git clone https://github.com/<username>/obc-peer.git

Cloning the Open Blockchain Development Environment project

Choose another location (NOT within the GOPATH directory tree) which will be referred to as the WORKSPACE. Change to this chosen WORKSPACE directory and clone the obc-dev-env repository.

cd WORKSPACE
git clone https://github.com/openblockchain/obc-dev-env.git

Boostrapping the VM using Vagrant

Now change to the WORKSPACE/obc-dev-env directory and run the following command:

vagrant up

NOTE: If you intend to run the development environment behind an HTTP Proxy, you need to configure the guest so that the provisioning process may complete. You can achieve this via the vagrant-proxyconf plugin. Install with vagrant plugin install vagrant-proxyconf and then set the VAGRANT_HTTP_PROXY and VAGRANT_HTTPS_PROXY environment variables before you execute vagrant up. More details are available here: https://github.com/tmatilai/vagrant-proxyconf/

Once complete, you should now be able to SSH into your new VM with the following command from the same WORKSPACE/obc-dev-env directory.

vagrant ssh

Once inside the VM, you can find your WORKSPACE directory under /openblockchain and the obc-peer project under $GOPATH/src/github.com/openblockchain/obc-peer. Additional instructions describe how to build, run and test the Open Blockchain Peer project.

NOTE: any time you git clone any of the projects in your Host's WORKSPACE, the update will be instantly available within the VM /openchain directory.