Kafkacat fails in TLS example about kafka-security-playbook HOT 2 OPEN

Debugging the issue:

(1) I looks like configuration issue in libssl libraries.

(2) docker-compose exec kafka yum info openssl
Last metadata expiration check: 0:34:03 ago on Wed Nov 13 10:16:53 2019.
Available Packages
Name : openssl
Epoch : 1
Version : 1.1.1
Release : 8.el8
Arch : i686
Size : 677 k
Source : openssl-1.1.1-8.el8.src.rpm
Repo : BaseOS
Summary : Utilities from the general purpose cryptography library with TLS implementation
URL : http://www.openssl.org/
License : OpenSSL
Description : The OpenSSL toolkit provides support for secure communications between
: machines. OpenSSL includes a certificate management tool and shared
: libraries which provide various cryptographic algorithms and
: protocols.

Name : openssl
Epoch : 1
Version : 1.1.1
Release : 8.el8
Arch : x86_64
Size : 664 k
Source : openssl-1.1.1-8.el8.src.rpm
Repo : BaseOS
Summary : Utilities from the general purpose cryptography library with TLS implementation
URL : http://www.openssl.org/
License : OpenSSL
Description : The OpenSSL toolkit provides support for secure communications between
: machines. OpenSSL includes a certificate management tool and shared
: libraries which provide various cryptographic algorithms and
: protocols.

from kafka-security-playbook.

Solution:
The Dockerfile for Kafka image contains:

FROM centos

which means, the system pulls the latest CentOS (version 8) image.

Using

FROM centos:centos7

solved the problem.

from kafka-security-playbook.