code: func LoadClusters(config string) (map[string]Cluster, error) {
  
  	file, err := os.Open(config)
  	if err != nil {
  		return nil, errors.Wrap(err, "Error opening file "+config)
  	}
  
  	clusters := make([]Cluster, 1)
  	err = json.NewDecoder(file).Decode(&clusters)
  	if err != nil {
  		return nil, errors.Wrap(err, "Error parsing file "+config)
  	}
  
  	m := make(map[string]Cluster)
  	for _, cluster := range clusters {
  		m[cluster.Name] = cluster
  	}
  
  	return m, nil
  }
docs: // Loads clusters.json file traditionally located at /etc/aurora/clusters.json