Shikhar Bhushan created KAFKA-3962:
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Summary: ConfigDef support for resource-specific configuration
Key: KAFKA-3962
URL: https://issues.apache.org/jira/browse/KAFKA-3962
Project: Kafka
Issue Type: Improvement
Reporter: Shikhar Bhushan
It often comes up with connectors that you want some piece of configuration
that should be overridable at the topic-level, table-level, etc.
There are a couple of possible ways to allow for this:
1. Support for map-style config properties "k1:v1,k2:v2". There are escaping
considerations to think through here. Also, how should the user override
fallback/default values -- perhaps {{*}} as a special resource?
2. Templatized configs -- so we can define {{$resource.some.property}} with the
ConfigDef API, and have getter variants that take the resource argument. The
default value is more naturally overridable here, by the user setting
{{some.property}}.
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