[jira] [Created] (FLINK-29727) Fall back to flink-conf.yaml if no JOB_MANAGER_RPC_ADDRESS is specified

["Alexander Fedulov (Jira)" <ji...@apache.org>]

Alexander Fedulov created FLINK-29727:
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             Summary: Fall back to flink-conf.yaml if no JOB_MANAGER_RPC_ADDRESS is specified
                 Key: FLINK-29727
                 URL: https://issues.apache.org/jira/browse/FLINK-29727
             Project: Flink
          Issue Type: Improvement
          Components: flink-docker
            Reporter: Alexander Fedulov
            Assignee: Alexander Fedulov


Currently {{docker-enterypoint.sh}} always overrides {{jobmanager.rpc.address}} in the {{flink-conf.yaml}} either with the environment variable {{JOB_MANAGER_RPC_ADDRESS}} or with a {{hosname}} : [link|https://github.com/apache/flink-docker/blob/3c259f46231b97202925a111a8205193c15bbf78/1.15/scala_2.12-java8-ubuntu/docker-entrypoint.sh#L25] . This causes, for instance, jobmanager address configured in `FlinkContainers` that are based on an existing image (contains `docker-entrypoint.sh` in contrast to an image that is built on-the flight from flink-dist) to be overridden by the hostname. TMs then fail for connect to the JM. A workaround is to use {{TestContainersSettings}} to set {{JOB_MANAGER_RPC_ADDRESS }}, which is a suboptimal from the user perspective.

Configuration in flink-conf.yaml should instead be kept if JOB_MANAGER_RPC_ADDRESS is not passed explicitly and only overridden by the {{hostname}} if nothing was specified in the confit. 



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