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https://issues.apache.org/jira/browse/KAFKA-19812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18101163#comment-18101163
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Yunseop Eom commented on KAFKA-19812:
-------------------------------------
PR opened: https://github.com/apache/kafka/pull/23045 for KAFKA-19812. Fixed
the Docker configure script so missing environment variables are reported
correctly under bash -u instead of causing an unbound-variable error. Added
regression tests for missing and empty values and wired them into the Docker
sanity test runner. Tests: common_scripts_test, bash -n, Python syntax
compilation, and git diff --check passed. Status: PR open and awaiting review.
> Unbound Error Thrown if some variables are not set for SASL/SSL configuration
> -----------------------------------------------------------------------------
>
> Key: KAFKA-19812
> URL: https://issues.apache.org/jira/browse/KAFKA-19812
> Project: Kafka
> Issue Type: Improvement
> Components: docker
> Affects Versions: 4.1.0
> Reporter: Manas Poddar
> Priority: Minor
>
> I was trying to set up a {*}Kafka container with SASL_SSL configuration{*},
> but I {*}missed setting up some environment variables{*}, and {*}Kafka kept
> exiting with an unbound variable error{*}. I checked the
> *{{/etc/kafka/docker/configure}}* file — it has an *{{ensure}} function* to
> check and instruct the user when a particular environment variable is not
> set. I also {*}checked the Docker history and the parent running file{*}, but
> they {*}gave no clue about running the {{.sh}} files with {{set -u}}{*}.
> This issue is {*}just an enhancement to properly log the error details{*}.
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