KIP-1137 — Standardize Configuration Precedence for Tool Scripts

Discussion Kafka 2.6 Admin

Establishes a uniform configuration precedence order (CLI args > CLI properties > config files > defaults) across all Kafka tool scripts, with a new --modern flag for scripts that don't yet follow it. Inconsistent precedence across tools caused user confusion and made configurations from files or properties silently ignored when multiple sources were present.

Details