Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/19437#discussion_r146989708
--- Diff: docs/running-on-mesos.md ---
@@ -485,39 +485,87 @@ See the [configuration page](configuration.html) for
information on Spark config
</tr>
<tr>
- <td><code>spark.mesos.driver.secret.envkeys</code></td>
- <td><code>(none)</code></td>
<td>
- A comma-separated list that, if set, the contents of the secret
referenced
- by spark.mesos.driver.secret.names or spark.mesos.driver.secret.values
will be
- set to the provided environment variable in the driver's process.
+ <code>spark.mesos.driver.secret.values</code>,
+ <code>spark.mesos.driver.secret.names</code>,
+ <code>spark.mesos.executor.secret.values</code>,
+ <code>spark.mesos.executor.secret.names</code>,
</td>
- </tr>
- <tr>
-<td><code>spark.mesos.driver.secret.filenames</code></td>
<td><code>(none)</code></td>
<td>
- A comma-separated list that, if set, the contents of the secret
referenced by
- spark.mesos.driver.secret.names or spark.mesos.driver.secret.values
will be
- written to the provided file. Paths are relative to the container's
work
- directory. Absolute paths must already exist. Consult the Mesos
Secret
- protobuf for more information.
+ A secret is specified by its contents and destination. These properties
+ specify a secret's contents. To specify a secret's destination, see
the cell below.
+
+ You can specify a secret's contents either (1) by value or (2) by
reference.
+ (1) To specify a secret by value, set the
+ <code>spark.mesos.[driver|executor].secret.values</code>
+ property, to make the secret available in the driver or executors.
+ For example, to make a secret password "guessme" available to the
driver process, set:
+
+ <pre>spark.mesos.driver.secret.values=guessme</pre>
+
+ (2) To specify a secret that has been placed in a secret store
--- End diff --
What is this secret store? I don't remember Spark providing this feature,
so it's not clear how this secret store is configured or used by Spark.
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