Kafka SSL Certificate Rotation Guide
Complete guide to implementing automated SSL certificate rotation for Kafka clusters, including zero-downtime rolling updates, certificate monitoring, and security best practices.
Zero-Downtime Certificate Rotation
Step-by-step process for rotating SSL certificates without service interruption.
Certificate Generation
Generate new certificates with proper SAN entries
Staging & Validation
Deploy to staging and validate certificate chain
Rolling Update
Perform rolling restart across all brokers
Verification
Verify connectivity and certificate validity
Automated Certificate Management
Implement automated certificate rotation with monitoring and alerting for proactive management.
Automation Pipeline
Certificate Authority Integration
# Auto-renewal with Let's Encrypt
certbot certonly --dns-route53
--post-hook "kafka-cert-rotate.sh"Rolling Restart Script
#!/bin/bash
for broker in $KAFKA_BROKERS; do
systemctl restart kafka
wait_for_broker_ready $broker
doneMonitoring & Alerts
- Certificate expiration monitoring (30, 14, 7 days)
- Certificate chain validation alerts
- SSL handshake failure detection
- Rotation process failure notifications
- Post-rotation connectivity validation
Certificate Configuration Management
Manage different certificate types and configurations across Kafka ecosystem components.
Broker Certificates
Inter-broker communication and client-facing SSL certificates with proper SAN configuration.
Client Certificates
Producer and consumer client certificates for mutual TLS authentication.
Schema Registry SSL
Schema Registry and Connect cluster SSL certificate management and rotation.
SSL Certificate Health Dashboard
Real-time monitoring of certificate health, expiration dates, and rotation status.
Certificate Status
SSL Health Metrics
Automate SSL Certificate Management with KLogic
Implement automated SSL certificate rotation and monitoring for your Kafka clusters with zero downtime.