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https://issues.apache.org/jira/browse/BEAM-7190?focusedWorklogId=250628&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-250628
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ASF GitHub Bot logged work on BEAM-7190:
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                Author: ASF GitHub Bot
            Created on: 29/May/19 23:56
            Start Date: 29/May/19 23:56
    Worklog Time Spent: 10m 
      Work Description: angoenka commented on issue #8597: [BEAM-7190] Enable 
file based token auth for samza portable runner
URL: https://github.com/apache/beam/pull/8597#issuecomment-497149924
 
 
   We are essentially creating a new header interceptor to validate the 
information in the header. We can make it modular by letting users specify the 
interceptor when starting job server.
   The jobserver can convey the interceptor class name to the Samza/Flink/Spark 
ExecutableStage function which will add the interceptor when creating the 
Channels. A similar option can be passed to SDK Harness to add an arbitrary 
grpc interceptor.
   
   To implement the use case of token based validation, Samza jobserver can 
simply instrument these options correctly. 
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 250628)
    Time Spent: 40m  (was: 0.5h)

> enable file system based token authentication for portable runner
> -----------------------------------------------------------------
>
>                 Key: BEAM-7190
>                 URL: https://issues.apache.org/jira/browse/BEAM-7190
>             Project: Beam
>          Issue Type: Task
>          Components: runner-samza
>            Reporter: Hai Lu
>            Assignee: Hai Lu
>            Priority: Major
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> For Samza and potentially other portable runners, there is a need to secure 
> the communication between sdk worker and runner. Currently the SSL/TLS in 
> portability is half done.
> However, after investigation we found that it's sufficient to just 1) use 
> loopback address 2) enforce authentication and that way the communication is 
> both authenticated and secured.
> This ticket intends to track the implementation of the solution above. More 
> details can be found in the following PR.



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