Knife Role Spaghetti Knife Plugin

Knife plugin for Chef to draw dependency graphs for roles that have become spaghetti.

Install & Usage Instructions

Installation

Requirements

Ruby 1.9.3 and higher.

This plugin requires on Graphviz, and should be installed prior to
installing the plugin.

Graphviz may be obtained through a variety of methods. On OSX an easy method is
via Homebrew:

$ brew install graphviz

Gem install, via RubyGems:

$ gem install knife-role-spaghetti

Usage

NOTE: Ensure that your knife.rb has the role_path setting configured.

Since this is a Knife plugin, execution should be performed in your Chef repository.

Execute:

$ knife role spaghetti

with no arguments should result in a new file named role-spaghetti.png in your
repo root.

$ knife role spaghetti "/tmp/someotherfilename.png"

will place the file in the specified location.

Execute knife role spaghetti -h for more options.

Examples

From a sample role, courtesy of @jtimberman, along with one from the Opscode Wiki, plus one more cyclic role model, produces this image:

(full resolution here)

Running through the neato renderer (with the -N switch) produces this image:

(full resolution here)