docs: function(key, dest, containerName) {
  
        // Attempt to connect to redis
        return getRedisClient()
  
        // Run the redis query and then quit
        .then(function(redis) {
          log.debug(format('Setting DNS. %s => %s', key, dest));
          return Promise.fromNode(function(cb) {
            redis.multi()
            .del(key)
            .rpush(key, containerName)
            .rpush(key, dest)
            .exec(cb);
          })
          .then(function() {
            redis.quit();
          });
        });
  
      }