@app.exclude.each do |reg|
      diff_rem.each do |item|
        if item =~ Regexp.new("#{reg}", Regexp::IGNORECASE)
          Chef::Log.debug "delete item rem: #{item} matched #{reg}"
          diff_rem.delete(item)
        else
          Chef::Log.debug "skip item add #{item} not matched #{reg}"
        end
      end
      diff_add.each do |item|
        if item =~ Regexp.new("#{reg}", Regexp::IGNORECASE)
          Chef::Log.debug "delete item add: #{item} matched #{reg}"
          diff_add.delete(item)
        else
          Chef::Log.debug "skip item add #{item} not matched #{reg}"
        end
      end
    end