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https://issues.apache.org/jira/browse/FLINK-34439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gyula Fora reassigned FLINK-34439:
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Assignee: Mate Czagany
> Move chown operations to COPY commands in Dockerfile
> ----------------------------------------------------
>
> Key: FLINK-34439
> URL: https://issues.apache.org/jira/browse/FLINK-34439
> Project: Flink
> Issue Type: Improvement
> Components: Kubernetes Operator
> Reporter: Mate Czagany
> Assignee: Mate Czagany
> Priority: Minor
>
> We can lower the size of the output operator container image if we don't run
> 'chown' commands in seperate RUN commands inside the Dockerfile, but instead
> use the '--chown' argument of the COPY command.
> Using 'RUN chown...' will copy all the files affected with their whole size
> to a new layer, duplicating the previous files from the COPY command.
> Example:
> {code:java}
> $ docker image history ghcr.io/apache/flink-kubernetes-operator:ccb10b8
> ...
> <missing> 3 months ago RUN /bin/sh -c chown -R flink:flink $FLINK...
> 116MB buildkit.dockerfile.v0
> ... {code}
> This would mean a 20% reduction in image size.
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