Support the ${jobName} variable in Flink configuration.

apache / incubator-streampark

Make stream processing easier! Easy-to-use streaming application development framework and operation platform.

Apache License 2.0

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What changes were proposed in this pull request

Issue Number: close #3463

Brief change log

Support the ${jobName} variable in Flink configuration files. This makes it easier to differentiate the files for each job, including savepoints, checkpoints, high availability files, etc.

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

Does this pull request potentially affect one of the following parts

Dependencies (does it add or upgrade a dependency): (yes / no)

apache / incubator-streampark