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https://issues.apache.org/jira/browse/SPARK-24833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-24833:
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Assignee: Apache Spark
> Allow specifying Kubernetes host name aliases in the pod specs
> --------------------------------------------------------------
>
> Key: SPARK-24833
> URL: https://issues.apache.org/jira/browse/SPARK-24833
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 2.3.1
> Reporter: Rob Vesse
> Assignee: Apache Spark
> Priority: Major
>
> For some workloads you would like to allow Spark executors to access external
> services using host name aliases. Currently there is no way to specify Host
> name aliases
> (https://kubernetes.io/docs/concepts/services-networking/add-entries-to-pod-etc-hosts-with-host-aliases/)
> to the pods that Spark generates and pod presets cannot be used to add these
> at admission time currently (plus the fact that pod presets are still an
> Alpha feature so not guaranteed to be usable on any given cluster).
> Since Spark on K8S already allows adding secrets and volumes to mount via
> Spark configuration it should be fairly easy to use the same approach to
> include host name aliases.
> I will look at opening a PR for this in the next couple of days.
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