j-y-matsubara commented on a change in pull request #8757:
URL: https://github.com/apache/airflow/pull/8757#discussion_r422455491
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File path: docs/kubernetes.rst
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@@ -40,11 +40,44 @@ that has the ability to mutate pod objects before sending
them to the Kubernetes
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
+This could be used, for instance, to add init containers
Review comment:
How is is made and used for sidecar?
We can mutation pod object by using pod_mutation_hook, but I think we can
not add any containers, excluding the init container ( in the case of using
kubernetes_request_factory.py, pod object is not V1Pod※. Overwrite **part of
the contents of** req object creating in pod_request_factory.py with pod
object, and launch "Pod" based on req object. ).
In the version 2.0, We can directly edit the pod object (V1Pod) used to
launch "Pod". Therefore, we can add any containaers (sidecar).
※Supplementary information
If we set the following to the operator,
```
k2 = KubernetesPodOperator(namespace='airflow01',
task_id='test-kwsk',
name='test-kwsk',
image="airflowworker:1.0.0",
image_pull_policy="IfNotPresent",
cmds=["bash", "-cx"],
arguments=['sleep 10000'],
do_xcom_push=True,
....
..
```
The pod object of argument of pod_mutation_hook is already set as follows.
```
affinity: {}
annotations: {}
args: ['sleep 10000']
cmds: ['bash', '-cx']
configmaps: []
dnspolicy: None
envs: {}
hostnetwork: False
image: airflowworker:1.0.0
image_pull_policy: IfNotPresent
...
..
```
If my understanding is mistaken, please tell me.
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