How to Install Apache Kafka on Linux Ubuntu

In order to install Apache Kafka you should have Java installed and JAVA_HOME environment variable set; if not follow the first instructions of this article.
1- Download Zookeeper:

wget http://apache.mirror.anlx.net/zookeeper/zookeeper-3.6.1/apache-zookeeper-3.6.1-bin.tar.gz

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2- Extract the archive content:

tar -xvzf apache-zookeeper-3.6.1-bin.tar.gz

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3- Create Zookeeper configuration file from the sample provided:

cp apache-zookeeper-3.6.1-bin/conf/zoo_sample.cfg apache-zookeeper-3.6.1-bin/conf/zoo.cfg

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4- Open the startup script file vim ~/.bashrc and add the following content:

	export ZOOKEEPER_HOME=/home/ubuntu/apache-zookeeper-3.6.1-bin
	export PATH="$PATH:${ZOOKEEPER_HOME}/bin"

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5- activate the new path settings:

source ~/.bashrc

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6- Start zookeeper service:

zkServer.sh start

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7- Download Kafka:

wget http://apache.mirror.anlx.net/kafka/2.5.0/kafka_2.12-2.5.0.tgz

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8- Create an installation folder for Kafka:

sudo mkdir /opt/kafka

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9- Extract the archive content:

sudo tar -xvzf kafka_2.12-2.5.0.tgz -C /opt/kafka

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10- Open the startup script file vim ~/.bashrc and add the following content:

	export KAFKA_HOME=/opt/kafka/kafka_2.12-2.5.0
	export PATH="$PATH:${KAFKA_HOME}/bin"

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11- activate the new path settings:

source ~/.bashrc

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12- Create a shortcut to Kafka configuration file:

sudo ln -s /opt/kafka/kafka_2.12-2.5.0/config/server.properties /etc/kafka.properties

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13- Edit listners parameter within Kafka configuration file i.e.:
listeners=PLAINTEXT://thedevopsnerdworld.com:9092
14- Start Kafka service:

kafka-server-start.sh /etc/kafka.properties

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