KEY:
notify_elasticsearch[:name]  publish bucket notifications to Elasticsearch endpoints

ARGS:
MINIO_NOTIFY_ELASTICSEARCH_ENABLE*      (on|off)             enable notify_elasticsearch target, default is 'off'
MINIO_NOTIFY_ELASTICSEARCH_URL*         (url)                Elasticsearch server's address, with optional authentication info
MINIO_NOTIFY_ELASTICSEARCH_INDEX*       (string)             Elasticsearch index to store/update events, index is auto-created