kafka-install-ubuntu-26

Install Apache Kafka on Ubuntu 26.04 using KRaft mode (Kafka 4.x without ZooKeeper) and legacy ZooKeeper setup (Kafka 3.x). Complete step-by-step DevOps guide with scripts, testing, and production configuration.

🚀 Apache Kafka Installation on Ubuntu 26.04 | KRaft (Kafka 4.x) + ZooKeeper (Kafka 3.x)

---

📑 Table of Contents

• Overview
• Quick Start
• Why This Repository
• Features
• Installation Guides
• Architecture
• Getting Started Resources
• Advanced Topics
• Project Structure
• Important Notes
• License
• Keywords

---

📚 Overview

This repository provides a complete step-by-step guide to install Apache Kafka on Ubuntu 26.04, covering both:

• ✅ Kafka 4.x (KRaft Mode — No ZooKeeper)
• ✅ Kafka 3.x (ZooKeeper-based setup)

It includes automated scripts, manual guides, and production-ready configurations designed for:

• DevOps Engineers
• Cloud Engineers
• Backend Engineers
• Kafka Beginners & Professionals

---

🚀 Quick Start

🔹 Kafka 4.x (KRaft Mode - Recommended)

cd kafka-kraft-install-ubuntu-26
chmod +x install-kafka-kraft-ubuntu-26.sh
./install-kafka-kraft-ubuntu-26.sh

---

🔹 Kafka 3.x (ZooKeeper Mode)

cd kafka-zookeeper-install-ubuntu-26
chmod +x install-kafka-zookeeper-ubuntu-26.sh
./install-kafka-zookeeper-ubuntu-26.sh

---

⭐ Why This Repository?

• Optimized for Ubuntu 26.04 LTS
• Covers both modern (KRaft) and legacy (ZooKeeper) setups
• Includes automation scripts + manual guides
• Production-ready configuration
• Clean and DevOps-friendly structure

---

⚡ Features

• ✅ Kafka 4.x installation using KRaft (no ZooKeeper)
• ✅ Kafka 3.x installation using ZooKeeper
• ✅ Automated installation scripts
• ✅ systemd service setup
• ✅ Topic creation & testing
• ✅ Production-ready configuration guidance
• ✅ Clean DevOps-friendly structure

---

📘 Installation Guides

🔹 Kafka 4.x (KRaft Mode)

👉 Install Kafka 4.x (KRaft Mode) on Ubuntu 26.04

---

🔹 Kafka 3.x (ZooKeeper Mode)

👉 Install Kafka 3.x with ZooKeeper on Ubuntu 26.04

---

🏗️ Architecture

• Kafka 4.x uses KRaft mode (no ZooKeeper required)
• Kafka 3.x uses ZooKeeper for cluster coordination
• Default Kafka port: 9092
• Supports single-node and multi-node setups

---

🌱 Getting Started Resources

• Apache Kafka Documentation: https://kafka.apache.org/documentation/
• Kafka Quickstart: https://kafka.apache.org/quickstart
• Kafka Configuration Guide: https://kafka.apache.org/documentation/#configuration

---

🚀 Advanced Topics Covered

• Kafka KRaft vs ZooKeeper architecture
• Multi-broker cluster setup
• Log retention & storage tuning
• JVM memory optimization
• Firewall & security configuration
• Monitoring (JMX, Prometheus, Grafana)
• Kafka performance tuning

---

📂 Project Structure

kafka-install-ubuntu-26/
│
├── README.md
├── LICENSE
│
├── kafka-kraft-install-ubuntu-26/
│   ├── install-kafka-kraft-ubuntu-26.sh
│   └── kafka-kraft-install-ubuntu-26.md
│
├── kafka-zookeeper-install-ubuntu-26/
│   ├── install-kafka-zookeeper-ubuntu-26.sh
│   └── kafka-zookeeper-install-ubuntu-26.md
│
└── assets/
    └── kafka-installation-architecture-ubuntu-26.png

---

⚠️ Important Notes

• Install Java (OpenJDK 17 or 21 recommended) Support Java 25 - I have tested It
• Ensure port 9092 is open
• Use systemd for production deployments
• For production:
  • Enable authentication (SASL/SSL)
  • Configure log retention
  • Use multi-broker setup

---

📄 License

MIT License

---

📈 Keywords

kafka install ubuntu 26.04
apache kafka installation ubuntu
kafka kraft install ubuntu
kafka without zookeeper
kafka 4 installation guide
kafka zookeeper setup ubuntu
kafka devops setup
kafka server ubuntu