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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 Peer project

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

cd $GOPATH/src
mkdir -p github.com/hyperledger
cd github.com/hyperledger
git clone https://github.com/<username>/fabric.git

Boostrapping the VM using Vagrant

Now you're ready to launch Vagrant.

cd $GOPATH/src/github.com/hyperledger/fabric/devenv
vagrant up

Go get coffee... this will take a few minutes. Once complete, you should be able to ssh into the Vagrant VM just created.

vagrant ssh

Building the fabric

Once you have your vagrant development environment established, you can proceed to build and test the fabric. Once inside the VM, you can find the peer project under $GOPATH/src/github.com/hyperledger/fabric. It is also mounted as /hyperledger.

Notes

NOTE: any time you git clone any of the projects in your Host's fabric directory (under $GOPATH/src/github.com/hyperledger/fabric), the update will be instantly available within the VM fabric directory.

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/

NOTE: The first time you run this command it may take quite a while to complete (it could take 30 minutes or more depending on your environment) and at times it may look like it's not doing anything. As long you don't get any error messages just leave it alone, it's all good, it's just cranking.

NOTE to Windows 10 Users: There is a known problem with vagrant on Windows 10 (see mitchellh/vagrant#6754). If the vagrant up command fails it may be because you do not have Microsoft Visual C++ Redistributable installed. You can download the missing package at the following address: http://www.microsoft.com/en-us/download/details.aspx?id=8328