[jira] [Created] (SPARK-26239) Add configurable auth secret source in k8s backend

["Marcelo Vanzin (JIRA)" <ji...@apache.org>]

Marcelo Vanzin created SPARK-26239:
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             Summary: Add configurable auth secret source in k8s backend
                 Key: SPARK-26239
                 URL: https://issues.apache.org/jira/browse/SPARK-26239
             Project: Spark
          Issue Type: New Feature
          Components: Kubernetes
    Affects Versions: 3.0.0
            Reporter: Marcelo Vanzin


This is a follow up to SPARK-26194, which aims to add auto-generated secrets similar to the YARN backend.

There's a desire to support different ways to generate and propagate these auth secrets (e.g. using things like Vault). Need to investigate:

- exposing configuration to support that
- changing SecurityManager so that it can delegate some of the secret-handling logic to custom implementations
- figuring out whether this can also be used in client-mode, where the driver is not created by the k8s backend in Spark.




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