def handle(self, *args, **kwargs):
list_all = kwargs.get('all')
elastic = ES(settings.SEARCH_HOSTS)
indices = elastic.cluster_state()['metadata']['indices']
listing = []
for key in indices.keys():
listing.extend([key])
if list_all:
listing.extend(indices[key]['aliases'])
for item in sorted(listing):
self.stdout.write(item + "\n")
elastic.connection.close()
