| .. 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. |
| |
| |
| |
| Kubernetes |
| ---------- |
| |
| Kubernetes Executor |
| ^^^^^^^^^^^^^^^^^^^ |
| |
| The :doc:`Kubernetes Executor <executor/kubernetes>` allows you to run all the Airflow tasks on |
| Kubernetes as separate Pods. |
| |
| KubernetesPodOperator |
| ^^^^^^^^^^^^^^^^^^^^^ |
| |
| The :ref:`KubernetesPodOperator <howto/operator:KubernetesPodOperator>` allows you to create |
| Pods on Kubernetes. |
| |
| Pod Mutation Hook |
| ^^^^^^^^^^^^^^^^^ |
| |
| The Airflow local settings file (``airflow_local_settings.py``) can define a ``pod_mutation_hook`` function |
| that has the ability to mutate pod objects before sending them to the Kubernetes client |
| for scheduling. It receives a single argument as a reference to pod objects, and |
| is expected to alter its attributes. |
| |
| This could be used, for instance, to add sidecar or init containers |
| to every worker pod launched by KubernetesExecutor or KubernetesPodOperator. |
| |
| |
| .. code-block:: python |
| |
| from kubernetes.client.models import V1Pod |
| |
| def pod_mutation_hook(pod: V1Pod): |
| pod.metadata.annotations['airflow.apache.org/launched-by'] = 'Tests' |