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https://issues.apache.org/jira/browse/BEAM-5440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16876641#comment-16876641
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Sam Bourne commented on BEAM-5440:
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Hello! I've opened a [PR|[https://github.com/apache/beam/pull/8982]] with a
working prototype of this feature. I was hoping to push this issue along and am
open to any guidance/help. The current PR adds support for passing additional
options to `docker run` (python sdk only currently).
> Add option to mount a directory inside SDK harness containers
> -------------------------------------------------------------
>
> Key: BEAM-5440
> URL: https://issues.apache.org/jira/browse/BEAM-5440
> Project: Beam
> Issue Type: New Feature
> Components: java-fn-execution, sdk-java-core
> Reporter: Maximilian Michels
> Priority: Major
> Labels: portability, portability-flink
> Time Spent: 20m
> Remaining Estimate: 0h
>
> While experimenting with the Python SDK locally, I found it inconvenient that
> I can't mount a host directory to the Docker containers, i.e. the input must
> already be in the container and the results of a Write remain inside the
> container. For local testing, users may want to mount a host directory.
> Since BEAM-5288 the {{Environment}} carries explicit environment information,
> we could a) add volume args to the {{DockerPayload}}, or b) provide a general
> Docker arguments field.
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