There are two ways to install ryu without any painful
(The Easiest Way)
An automatic installation script for build and install Ryu source code on Ubuntu 12.04+.
To make installation easiest. This helper script which should get all dependencies and download, build, and install Ryu.
$ curl -sL https://raw.githubusercontent.com/sdnds-tw/ryuInstallHelper/master/ryuInstallHelper.sh | bash
That's it !!
Note: This script has only been tested on the most recent stable version of Ubuntu.
virtualenv is a tool to create isolated Python environments.
$ sudo apt-get update
$ sudo apt-get install git python-pip python-dev libxml2-dev libxslt1-dev -y
First, create a new virtualenv called "ryu_venv":
$ virtualenv ryu_venv
Activate the newly created virtualenv:
$ source ./ryu_venv/bin/activate
Your shell prompt will now display the currently active virtualenv:
(ryu_venv)$
(ryu_venv)$ pip install ryu
Once you have properly setup virtualenv and install ryu, you can start ryu using following command:
(ryu_venv)$ ryu-manager
You may need to clone official source code for running sample application.
$ git clone https://github.com/osrg/ryu.git
Running a sample application
(ryu_venv)$ ryu-manager ./ryu/ryu/ryu/app/simple_switch_13.py
If you want to leave python virtualenv just using deactivate command.
(ryu_venv)$ deactivate
For more information on virtualenv, see https://virtualenv.pypa.io/en/latest/
Enjoy hacking on SDN 😄