Introduction

Snaproute dockerLab allows you to quicky and easily deploy switches running FlexSwitch within a virtual environment.

Use this tool to familiarize yourself with SnapRoute Flexswitch along with testing custom topologies specific to your network!

Easy Setup

Setup your SnapRoute dockerLab environment with a single command:

root@ubuntu:~/$ curl -sSL http://getdocker.snaproute.com | sh

If using a clean install - it may be necessary to install curl, if an error message like this is seen:

The program 'curl' is currently not installed. You can install it by typing:
sudo apt install curl

To continue, follow the instructions from the target distro (apt, yum, etc.) to install curl:

root@ubuntu:~/$ sudo apt install curl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  curl
...

!!! note "Supported Linux Versions" FlexSwitch for Docker is only supported for Docker on Linux. It has been tested with Ubuntu 14.04/16.04, CentOS 7, and Fedora 25.

Docker Privileges

You may want to add users to the docker group so they can execute docker commands without root access.

Add the desired user to the docker group, in this case the username is user1:

user1@ubuntu:~/$ sudo usermod -aG docker user1

!!! note Remember that you will have to log out and back in for this to take effect!

You can validate the user is in the appropriate group using the groups command:

user1@ubuntu:~$ groups
ubuntu adm cdrom sudo dip plugdev lpadmin sambashare docker

The above shows that user1 is in the docker group.

Manual Setup

If you followed the steps in the Easy Setup section, you can skip ahead to Usage.

The SnapRoute docker lab is dependent on a Linux kernel locally running docker service and python 2.7. Additionally, it's useful to have git installed to pull fresh lab modules.

Use apt-get, yum, or pkg to install

• docker
• python2.7
• git
• wget

Finally, pull the public repository via git clone command. For example:

# install git and python
root@ubuntu:~/$ apt-get update && apt-get install -y git python wget

# install docker via get.docker.com script
root@ubuntu:~/$ curl -sSL https://get.docker.com/ | sh
root@ubuntu:~/$ service docker start
# (optional) add a username to docker group
root@ubuntu:~/$ usermod -aG docker user1

# git clone to pull dockerLab scripts
root@ubuntu:~/$ git clone https://github.com/SnapRoute/dockerLab.git
root@ubuntu:~/$ python dockerLab/labtool.py --help

Usage

Once docker is installed, you can execute labtool.py to spin up containers running SnapRoute Flexswitch.

Available Labs:

• Lab 1 - Introduction to Flexswitch
• Lab 2 - Custom Topologies

root@ubuntu:~/$ python dockerLab/labtool.py --help
usage: labtool.py [-h] [--describe] [--lab LAB] [--stage STAGE]
                  [--image IMAGE] [--upgrade UPGRADE [UPGRADE ...]]
                  [--cleanup] [--repair] [--debug {debug,warn,info,error}]

SnapRoute LabTool

optional arguments:
  -h, --help            show this help message and exit
  --describe            Describe/List currently available labs
  --lab LAB             Specify which dockerized SnapRoute lab to build. For a
                        list of available labs and descriptions, use
                        --describe option
  --stage STAGE         Each lab may have one or more stages with various
                        configurations/ verifications to perform. Specify a
                        stage option will auto-reconfigure all devices with
                        necessary configuration required at the end of the
                        stage. This is a useful operation for users who need
                        help completing and or wish to skip over stages. Note,
                        this operation will rebuild the entire container so
                        any custom configuration will be lost.
  --image IMAGE         Flexswitch image to run on the container. Image can be
                        the full path to .deb package or a url in which to
                        download the image. By default, the flexswitch image
                        bundled within the docker image will be deployed.
  --upgrade UPGRADE [UPGRADE ...]
                        Specify one or more container names to upgrade. To
                        upgrade all containers within a specific lab, then use
                        --upgrade "*" combined with --lab option. All
                        containers will be upgraded to the flexswitch image
                        provided by the --image option
  --cleanup             clean/delete all containers referenced within lab
                        topology
  --repair              This script builds linux vEth interfaces and assigns
                        them directly to the docker container to create the
                        point-to-point links. If a container is reloaded, the
                        vEth interface references become invalid and need to
                        be rebuilt. Use the --repair option to repair broken
                        topology links.
  --debug {debug,warn,info,error}