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This proposal intends to enhance the AbstractConfig base class to automatically resolve variables of the form specified in KIP-297. This simple change will make it very easy for all the components client applications, Kafka Connect, and Kafka Streams to use shared code to easily incorporate externalized secrets and other variable replacements within their configurations. All the components broker, connect, producer, consumer, admin client, and so forth.  will be able to automatically resolve the external configurations. This proposal does not add other ConfigProvider implementations or change the behavior of existing methods. By default we will enable the automatic resolution of externalized configurations, each component can disable the feature if needed.

Public Interfaces

This proposal will add 2 new interfaces for the AbstractConfig class:
AbstractConfig

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