| .. Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| .. http://www.apache.org/licenses/LICENSE-2.0 |
| |
| .. Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| Workload |
| ======== |
| |
| This topic describes how to configure Airflow to secure your workload. |
| |
| Impersonation |
| ------------- |
| |
| Airflow has the ability to impersonate a unix user while running task |
| instances based on the task's ``run_as_user`` parameter, which takes a user's name. |
| |
| **NOTE:** For impersonations to work, Airflow requires ``sudo`` as subtasks are run |
| with ``sudo -u`` and permissions of files are changed. Furthermore, the unix user |
| needs to exist on the worker. Here is what a simple sudoers file entry could look |
| like to achieve this, assuming airflow is running as the ``airflow`` user. This means |
| the airflow user must be trusted and treated the same way as the root user. |
| |
| .. code-block:: none |
| |
| airflow ALL=(ALL) NOPASSWD: ALL |
| |
| |
| Subtasks with impersonation will still log to the same folder, except that the files they |
| log to will have permissions changed such that only the unix user can write to it. |
| |
| Default Impersonation |
| ''''''''''''''''''''' |
| To prevent tasks that don't use impersonation to be run with ``sudo`` privileges, you can set the |
| ``core:default_impersonation`` config which sets a default user impersonate if ``run_as_user`` is |
| not set. |
| |
| .. code-block:: ini |
| |
| [core] |
| default_impersonation = airflow |