[GitHub] [airflow] kaxil commented on a change in pull request #15595: Adds log persistence to helm chart

[GitBox <gi...@apache.org>]

kaxil commented on a change in pull request #15595:
URL: https://github.com/apache/airflow/pull/15595#discussion_r623409574



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File path: docs/helm-chart/manage-logs.rst
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@@ -0,0 +1,89 @@
+ .. 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.
+
+Manage logs
+=================
+
+You have a number of options when it comes to managing your Airflow logs.
+
+No persistence
+-----------------
+
+With this option, Airflow will log locally to each pod. As such, the logs will only be available during the lifetime of the pod.
+
+.. code-block:: bash
+
+    helm upgrade airflow . \
+      --set logs.persistence.enabled=false
+      # --set workers.persistence.enabled=false (also needed if using ``CeleryExecutor``)
+
+Celery worker log persistence
+-----------------------------
+
+If you are using ``CeleryExecutor``, workers persist logs by default to a volume claim created with a ``volumeClaimTemplate``.
+
+You can modify the template:
+
+.. code-block:: bash
+
+    helm upgrade airflow . \
+      --set executor=CeleryExecutor \
+      --set workers.persistence.size=10Gi
+
+Note with this option only task logs are persisted, unlike when log persistence is enabled which will also persist scheduler logs.
+
+Log persistence enabled
+-----------------------
+
+This option will provision a PersistentVolumeClaim with an access mode of ``ReadWriteMany``. Each component of Airflow will

Review comment:
       ```suggestion
   This option will provision a ``PersistentVolumeClaim`` with an access mode of ``ReadWriteMany``. Each component of Airflow will
   ```




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