Empty user and password for backups for AWS Instance roles

management/backup.py

@@ -511,6 +511,9 @@ def list_target_files(config):
 
 		# connect to the region & bucket
 		try:
+			if config['target_user'] == "" and config['target_pass'] == "":
+				s3 = boto3.client('s3', endpoint_url=f'https://{target.hostname}')
+			else:
 				s3 = boto3.client('s3', \
 					endpoint_url=f'https://{target.hostname}', \
 					aws_access_key_id=config['target_user'], \