in reply to Connect to Kafka server over SSL
Maybe this helps
cpan finds Net::Kafka This module provides Perl bindings to librdkafka C client library. It is heavily inspired by Kafka::Librd module originally developed by Pavel Shaydo.
builtin.features tells you if you got ssl support ... bunch of other "ssl" options documented
... ssl.key.location * low Path to client's private ke +y (PEM) used for authentication. Type: string ssl.key.password * low Private key passphrase (for + use with ssl.key.location and set_ssl_cert()) ...
Some of them look familiar from kafka_consumer.pl