NetworkDrawer

A network diagram drawer with YAML or JSON.

Installation

Ensure you can use Graphviz, before installing network_drawer.

You can install Graphviz as follow.

# Mac OS X with brew
brew install graphviz

# CentOS
yum install graphviz

# Ubuntu
apt-get install graphviz

Add this line to your application's Gemfile:

gem 'network_drawer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install network_drawer

Usage

You can draw a network diagram with a YAML or JSONfile with SVG format:

$ bundle exec network_drawer draw examples/simple.yml

$ bundle exec network_drawer draw examples/simple.json

You can draw a network diagram with specified style:

$ bundle exec network_drawer draw examples/simple.yml -s examples/simple_style.yml

$ bundle exec network_drawer draw examples/simple.json -s examples/simple_style.json

You can draw a network diagram with specified layout(dot, fdp..):

$ bundle exec network_drawer draw examples/simple.yml -l fdp

You can draw a network diagram with png format:

$ bundle exec network_drawer draw examples/simple.yml -f png

Then You will get a network diagram. See more Gallery

sample diagram(SVG)

How to describe

You can describe diagram with YAML or JSON.

Network diagram

You can describe diagram as follows:

simple.yml

layers:
- Web:
    nodes:
    - WebLB:
        ports:
        - 80/tcp
        - 443/tcp
        type: LB
        url: https://github.com/otahi/network_drawer/
    - Web001:
        ports:
        - 80/tcp
    - Web002:
        ports:
        - 80/tcp
- App:
    nodes:
    - AppLB:
        ports:
        - 80/tcp
        - 25/tcp
        type: LB
    - App001:
        ports:
        - 80/tcp
        - 25/tcp
    - App002:
        ports:
        - 80/tcp
        - 25/tcp
nodes:
- Browser:
  type: Client
- Mail Server:
  type: Client
connections:
- from: Browser
  to: WebLB:80/tcp
  type: HTTP
- from: Browser
  to: WebLB:443/tcp
- from: Mail Server
  to: AppLB:25/tcp
  type: SMTP
- from: WebLB
  to: Web001:80/tcp
  type: HTTP
- from: WebLB
  to: Web002:80/tcp
  type: HTTP
- from: Web001
  to: AppLB:80/tcp
  type: HTTP
- from: Web002
  to: AppLB:80/tcp
  type: HTTP
- from: AppLB
  to: App001:25/tcp
  type: SMTP
- from: AppLB
  to: App001:80/tcp
  type: HTTP
- from: AppLB
  to: App002:25/tcp
  type: SMTP
- from: AppLB
  to: App002:80/tcp
  type: HTTP

Style

You can specify your style for nodes or edges with Graphviz attributes.

simple_style.yml

types: 
  WEB: 
    style: rounded,filled,dotted
    fillcolor: azure
  LB: 
    style: rounded,filled,dotted
    fillcolor: azure
  HTTP: 
    color: blue
  SMTP: 
    color: green

Contributing

Fork it ( https://github.com/otahi/network_drawer/fork )
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create a new Pull Request