loads missing roles for a set of nodes

load_missing_roles.rb

#!/usr/bin/env ruby                                                                                                                                           

servers = %x[ knife search node "name:*econ*" -i].split
servers = servers.slice(3, servers.length)

servers.each do |s|
  run_list_str = %[knife node show #{s} -r -f json]
  run_list = JSON.parse(s_run_list)
  if not run_list.include? "role[base]"
    %x[knife node run_list add #{s} "role[base]"]
  end
  if not run_list.include? "role[int0]" or not run_list.include? "role[ext0]"
    if s =~ /^ext.*$/
      %x[knife node run_list add #{s} "role[ext0]"]
    else
      %x[knife node run_list add #{s} "role[int0]"]
    end
  end
  if not run_list.include? "role[econ]"
    %x[knife node run_list add #{s} "role[econ]"]
  end
  %x[ knife ssh name:${s} "chef-client" -x root -i .chef/identity ]
end