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https://issues.apache.org/jira/browse/FLINK-21383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17408691#comment-17408691
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Robert Metzger commented on FLINK-21383:
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+1 for fixing this issue, as it might confuse users
> Docker image does not play well together with ConfigMap based flink-conf.yamls
> ------------------------------------------------------------------------------
>
> Key: FLINK-21383
> URL: https://issues.apache.org/jira/browse/FLINK-21383
> Project: Flink
> Issue Type: Bug
> Components: Deployment / Kubernetes, flink-docker
> Affects Versions: 1.11.3, 1.12.1, 1.13.0
> Reporter: Till Rohrmann
> Priority: Minor
> Labels: auto-deprioritized-major, usability
>
> Flink's Docker image does not play well together with ConfigMap based
> flink-conf.yamls. The {{docker-entrypoint.sh}} script offers a few env
> variables to overwrite configuration values (e.g. {{FLINK_PROPERTIES}},
> {{JOB_MANAGER_RPC_ADDRESS}}, etc.). The problem is that the entrypoint script
> assumes that it can modify the existing {{flink-conf.yaml}}. This is not the
> case if the {{flink-conf.yaml}} is based on a {{ConfigMap}}.
> Making things worse, failures updating the {{flink-conf.yaml}} are not
> reported. Moreover, the called {{jobmanager.sh}} and {{taskmanager.sh}}
> scripts don't support to pass in dynamic configuration properties into the
> processes.
> I think the problem is that our assumption that we can modify the
> {{flink-conf.yaml}} does not always hold true. If we updated the final
> configuration from within the Flink process (dynamic properties and env
> variables), then this problem could be avoided.
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