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https://issues.apache.org/jira/browse/FLINK-17077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17110019#comment-17110019
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Eui Heo commented on FLINK-17077:
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In either case, flink-conf.yaml is mounted only with the configMap. If the
runtime properties need to be added, pod initContainer copy the read-only
flink-conf.yaml mounted with the configMap to another location and it is
written additionally by the docker-entrypoint script.
> FLINK_CONF_DIR environment variable to locate flink-conf.yaml in Docker
> container
> ---------------------------------------------------------------------------------
>
> Key: FLINK-17077
> URL: https://issues.apache.org/jira/browse/FLINK-17077
> Project: Flink
> Issue Type: Improvement
> Components: Deployment / Docker
> Reporter: Eui Heo
> Assignee: Eui Heo
> Priority: Major
> Labels: Kubernetes, docker
>
> To use flink-conf.yaml outside Flink home directory, we should use
> FLINK_CONF_DIR.
> But despite of FLINK_CONF_DIR is provided, docker-entrypoint.sh in official
> flink-docker doesn't know FLINK_CONF_DIR and it is ignored when append
> additional flink properties to flink-conf.yaml. It would be good to use
> FLINK_CONF_DIR for the location of flink-conf.yaml, if user provide it.
> https://github.com/apache/flink-docker/blob/master/docker-entrypoint.sh#L23
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