erikerlandson commented on issue #24962: [SPARK-28149][K8S] Added variable to disable negative DNS caching URL: https://github.com/apache/spark/pull/24962#issuecomment-515194690 @jlpedrosa my working assumption was that the security file could be mounted as a config-map, without having to mess with custom images (steps 1 & 5). If that is truly necessary, then I'd consider it a reasonable case for some kind of code modification. As @vanzin alluded to above, the motivation for pod templates was to make k8s-related modifications possible without having to re-code the back end to pass through k8s config every time a user wanted to set some new feature. However, there was also the implicit assumption that it should be possible without a great deal of gymnastics from the user.
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