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https://issues.apache.org/jira/browse/SPARK-38862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17869571#comment-17869571
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Jack commented on SPARK-38862:
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[~dongjoon], would you mind shifting status to in progress and assigning me to
this issue? I have a draft pull request that I will look to complete validation
on this week.
> Let consumers provide their own method for Authentication for The REST
> Submission Server
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-38862
> URL: https://issues.apache.org/jira/browse/SPARK-38862
> Project: Spark
> Issue Type: New Feature
> Components: Documentation, Spark Core, Spark Submit
> Affects Versions: 3.4.0, 4.0.0
> Reporter: Jack
> Priority: Major
> Labels: authentication, pull-request-available, rest, spark,
> spark-submit, submit
>
> [Spark documentation|https://spark.apache.org/docs/latest/security.html]
> states that
> ??The REST Submission Server and the MesosClusterDispatcher do not support
> authentication. You should ensure that all network access to the REST API &
> MesosClusterDispatcher (port 6066 and 7077 respectively by default) are
> restricted to hosts that are trusted to submit jobs.??
> Whilst it is true that we can use network policies to restrict access to our
> exposed submission endpoint, it would be preferable to at least also allow
> some primitive form of authentication at a global level, whether this is by
> some token provided to the runtime environment or is a "system user" using
> basic authentication of a username/password combination - I am not strictly
> opinionated and I think either would suffice.
> Alternatively, one could implement a custom proxy to provide this
> authentication check, but upon investigation this option is rejected by the
> spark master as-is today.
> I would imagine that whatever solution is agreed for a first phase, a custom
> authenticator may be something we want a user to be able to provide so that
> if an admin needed some more advanced authentication check, such as RBAC et
> al, it could be facilitated without the need for writing a complete custom
> proxy layer; although it could be argued just some basic built in layer being
> available; eg. RestSubmissionBasicAuthenticator could be preferable.
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