root: save temporary database dump in /tmp

closes #1055

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/root/settings.py

@@ -15,6 +15,7 @@ import logging
 import os
 import sys
 from json import dumps
+from tempfile import gettempdir
 from time import time
 
 import structlog
@@ -341,7 +342,7 @@ DBBACKUP_FILENAME_TEMPLATE = "authentik-backup-{datetime}.sql"
 DBBACKUP_CONNECTOR_MAPPING = {
     "django_prometheus.db.backends.postgresql": "dbbackup.db.postgresql.PgDumpConnector",
 }
-
+DBBACKUP_TMP_DIR = gettempdir() if DEBUG else "/tmp" # nosec
 if CONFIG.y("postgresql.s3_backup"):
     DBBACKUP_STORAGE = "storages.backends.s3boto3.S3Boto3Storage"
     DBBACKUP_STORAGE_OPTIONS = {