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Kafka Installation and Usage Guide

1. Install Kafka Using Docker

Step 1: Pull Kafka Docker Image

Download the official Kafka Docker image:
docker pull apache/kafka:3.7.0

Step 2: Create and Run a Kafka Container
docker run -d -p 9092:9092 --name kafka apache/kafka

Verify the container is running:
docker ps

2. Access Kafka Container
Step 3: Enter Kafka Container
docker container exec -it kafka /bin/bash


Step 4: Locate Kafka Scripts

Navigate to the Kafka installation directory inside the container:

cd /opt/kafka/bin/

Check available Kafka scripts:

ls

For help with Kafka topics:

/opt/kafka/bin/kafka-topics.sh --help

3. Create a Kafka Topic

Kafka topics store messages/events. You need to create a topic before sending data.

Step 5: Create a Kafka Topic

/opt/kafka/bin/kafka-topics.sh --bootstrap-server localhost:9092 --create --topic my-topic

Verify the topic is created:

/opt/kafka/bin/kafka-topics.sh --bootstrap-server localhost:9092 --list

Get details of the topic:

/opt/kafka/bin/kafka-topics.sh --bootstrap-server localhost:9092 --describe --topic my-topic

4. Kafka Producer and Consumer

Step 6: Start a Kafka Producer

Producers send messages to Kafka topics.

/opt/kafka/bin/kafka-console-producer.sh --bootstrap-server localhost:9092 --topic my-topic

Now, type messages like:

I am at location 1
I am at location 2
I am at location 3

Press Enter after each message.

Step 7: Start a Kafka Consumer

Consumers receive messages from Kafka topics.
Open a new terminal and access the Kafka container again:

https://kafka.apache.org/

https://kafka.apache.org/downloads


https://hub.docker.com/layers/apache/...


https://hub.docker.com/r/apache/kafka


https://hub.docker.com/r/apache/kafka...
docker exec -it kafka /bin/bash
cd /opt/kafka/bin/

Start a Kafka consumer to receive messages from the beginning:

/opt/kafka/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic my-topic --from-beginning

If you omit --from-beginning, only new messages will be displayed:

/opt/kafka/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic my-topic

5. Deleting a Kafka Topic

To delete a topic:

/opt/kafka/bin/kafka-topics.sh --bootstrap-server localhost:9092 --delete --topic my-topic


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