default.rb

run_context.resource_collection.each do |r|
  r.source_line =~ /cookbooks\/(.+?)\/recipes\/(.+)\.rb:.+/
  cookbook_name = $1
  recipe_part = $2.gsub('/', "::")
  recipe_name = "#{cookbook_name}::#{recipe_part}"
  if node[:isolation][:recipes].include?(recipe_name) || node[:isolation][:cookbooks].include?(cookbook_name)
    Chef::Log.info("Setting #{r.to_s} to ignore failure, via the isolation cookbook")
    r.ignore_failure(true)
  end
end