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https://issues.apache.org/jira/browse/SPARK-20812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16049380#comment-16049380
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Michael Gummelt commented on SPARK-20812:
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The dispatcher won't know about the secrets. It will only know about the name
of the secret that the user provides. The Mesos plugin that handles secrets
(which in DC/OS is the secret store), will actually start the task with the
secret mounted.
As for the secret store specifically, that's a DC/OS feature, not an Apache
feature, so let's talk about it elsewhere.
> Add Mesos Secrets support to the spark dispatcher
> -------------------------------------------------
>
> Key: SPARK-20812
> URL: https://issues.apache.org/jira/browse/SPARK-20812
> Project: Spark
> Issue Type: New Feature
> Components: Mesos
> Affects Versions: 2.3.0
> Reporter: Michael Gummelt
>
> Mesos 1.4 will support secrets. In order to support sending keytabs through
> the Spark Dispatcher, or any other secret, we need to integrate this with the
> Spark Dispatcher.
> The integration should include support for both file-based and env-based
> secrets.
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