Concept for Trac as issue tracker.

modules/trac/manifests/init.pp

 class trac(
     $domain,
     $is_default = false) inherits private::trac {
-  package {['python-mysqldb','python-pip','subversion', 'tofrodos']:
+  package {['python-mysqldb','python-pip','subversion', 'tofrodos', 'graphviz']:
     ensure => present
   }
 
   include nginx, spawn-fcgi
 
   nginx::hostconfig {$domain:
     content => template('trac/site.erb'),
     enabled => true
   }
 
@@ skipping 61 matching lines @@
     require => Package['subversion', 'python-pip'],
     unless => "python -c 'import tickettemplate'",
   }
 
   exec { 'install_AutocompleteUsers':
     command => "pip install svn+http://trac-hacks.org/svn/autocompleteusersplugin/trunk/",
     require => Package['subversion', 'python-pip'],
     unless => "python -c 'import autocompleteusers'",
   }
 
-  package { "graphviz":
-    ensure => "installed"
-  }
-
   exec { 'install_MasterTickets':
     command => "pip install svn+http://trac-hacks.org/svn/masterticketsplugin/trunk/",
     require => Package['subversion', 'python-pip', 'graphviz'],
     unless => "python -c 'import mastertickets'",
   }
 
   file {"/home/trac/environment/conf/trac.ini":
     ensure => present,
     content => template('trac/trac.ini.erb'),
     owner => trac,
@@ skipping 38 matching lines @@
     require => Exec['deploy'],
   }
 
   file {"/home/trac/permissions.csv":
     ensure => present,
     owner => trac,
     source => 'puppet:///modules/trac/permissions.csv'
   }
 
 }