jedcunningham commented on a change in pull request #18147:
URL: https://github.com/apache/airflow/pull/18147#discussion_r708819222



##########
File path: docs/helm-chart/production-guide.rst
##########
@@ -200,3 +200,24 @@ By default, the chart will deploy Redis. However, you can 
use any supported Cele
 
 For more information about setting up a Celery broker, refer to the
 exhaustive `Celery documentation on the topic 
<http://docs.celeryproject.org/en/latest/getting-started/>`_.
+
+Security Context Constraints
+-----------------------------
+
+A ``Security Context Constraint`` (SCC) is a OpenShift construct that works as 
a RBAC rule however it targets PODs instead of users.
+When defining a SCC, one can control actions and resources a POD can perform 
or access during startup and runtime.

Review comment:
       ```suggestion
   A ``Security Context Constraint`` (SCC) is a OpenShift construct that works 
as a RBAC rule however it targets Pods instead of users.
   When defining a SCC, one can control actions and resources a Pod can perform 
or access during startup and runtime.
   ```

##########
File path: docs/helm-chart/production-guide.rst
##########
@@ -200,3 +200,24 @@ By default, the chart will deploy Redis. However, you can 
use any supported Cele
 
 For more information about setting up a Celery broker, refer to the
 exhaustive `Celery documentation on the topic 
<http://docs.celeryproject.org/en/latest/getting-started/>`_.
+
+Security Context Constraints
+-----------------------------
+
+A ``Security Context Constraint`` (SCC) is a OpenShift construct that works as 
a RBAC rule however it targets PODs instead of users.
+When defining a SCC, one can control actions and resources a POD can perform 
or access during startup and runtime.
+
+The SCCs are split into different levels or categories with the ``restricted`` 
SCC being the default one assigned to PODs.
+When deploying airflow to OpenShift, one can leverage the SCCs and allow the 
PODs to start containers utilizing the ``anyuid`` SCC.

Review comment:
       ```suggestion
   The SCCs are split into different levels or categories with the 
``restricted`` SCC being the default one assigned to Pods.
   When deploying Airflow to OpenShift, one can leverage the SCCs and allow the 
Pods to start containers utilizing the ``anyuid`` SCC.
   ```

##########
File path: docs/helm-chart/production-guide.rst
##########
@@ -200,3 +200,24 @@ By default, the chart will deploy Redis. However, you can 
use any supported Cele
 
 For more information about setting up a Celery broker, refer to the
 exhaustive `Celery documentation on the topic 
<http://docs.celeryproject.org/en/latest/getting-started/>`_.
+
+Security Context Constraints
+-----------------------------
+
+A ``Security Context Constraint`` (SCC) is a OpenShift construct that works as 
a RBAC rule however it targets PODs instead of users.
+When defining a SCC, one can control actions and resources a POD can perform 
or access during startup and runtime.
+
+The SCCs are split into different levels or categories with the ``restricted`` 
SCC being the default one assigned to PODs.
+When deploying airflow to OpenShift, one can leverage the SCCs and allow the 
PODs to start containers utilizing the ``anyuid`` SCC.
+
+In order to enable the usage of SCCs, one must set the parameter 
:ref:`rbac.createSCCRoleBinding <parameters:Kubernetes>` to ``true`` as shown 
below:
+
+.. code-block:: yaml
+
+  rbac:
+    create: true
+    createSCCRoleBinding: true
+
+In this chart, SCCs are bound to the PODs via RoleBindings meaning that the 
option ``rbac.create`` must also be set to ``true`` in order to fully enable 
the SCC usage.

Review comment:
       ```suggestion
   In this chart, SCCs are bound to the Pods via RoleBindings meaning that the 
option ``rbac.create`` must also be set to ``true`` in order to fully enable 
the SCC usage.
   ```

##########
File path: chart/templates/rbac/security-context-constraint-rolebinding.yaml
##########
@@ -0,0 +1,93 @@
+# 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.
+
+################################
+## Airflow SCC Role Binding
+#################################
+{{- if and .Values.rbac.create .Values.rbac.createSCCRoleBinding }}
+{{- $schedulerLaunchExecutors := list "LocalExecutor" "CeleryExecutor" 
"KubernetesExecutor" "CeleryKubernetesExecutor" }}
+{{- $workerLaunchExecutors := list "CeleryExecutor" "KubernetesExecutor" 
"CeleryKubernetesExecutor" }}

Review comment:
       In this context, I'm not sure we care if the scheduler or workers can 
launch pods, only if the component exists? Obviously we need a scheduler, so no 
conditional there. Maybe this is what we want instead for the workers:
   
   ```suggestion
   {{- $hasWorkers := has .Values.executor (list "CeleryExecutor" 
"KubernetesExecutor" "CeleryKubernetesExecutor") }}
   ```
   
   Then the worker serviceaccount section can be done conditionally based on 
`$hasWorkers`?




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