data-hub-file-browser Environment Variables supported DHFB_AWS_KEY_ID = '' DHFB_AWS_SECRET = '' DHFB_S3_BUCKET_NAME = '' ABC_CLIENT_ID = '' ABC_CLIENT_SECRET = '' ABC_BASE_URL = '' ABC_TOKEN_URL = '' ABC_AUTHORIZE_URL = '' ABC_LOGOUT_URL = '' Optional DHFB_CHUNK_SIZE = 1024