== KAFKA
$ cd ~/tfs-ctrl/hackfest/kafka

(INSTALL)
$ pip3 install kafka-python
$ wget https://ftp.cixug.es/apache/kafka/2.8.0/kafka_2.13-2.8.0.tgz
$ tar -xzf kafka_2.13-2.8.0.tgz
(RUN)
$ cd kafka_2.13-2.8.0
$ bin/zookeeper-server-start.sh config/zookeeper.properties
(In new window)
$ cd ~/tfs-ctrl/hackfest/kafka/kafka_2.13-2.8.0
$ bin/kafka-server-start.sh config/server.properties

CREATE TOPIC
(In new window)
$ cd ~/tfs-ctrl/hackfest/kafka/kafka_2.13-2.8.0
$ bin/kafka-topics.sh --create --topic my-topic --bootstrap-server localhost:9092

(In new window)
$ cd ~/tfs-ctrl/hackfest/kafka
$ python3 sub.py
 
(In new window)
$ cd ~/tfs-ctrl/hackfest/kafka
$ python3 pub.py