Installing Zitadel on Kubernetes with Helm

Overview

This comprehensive hands-on tutorial demonstrates how to deploy Zitadel, the modern identity and access management platform, to a Kubernetes cluster using the official Helm charts. Starting with essential prerequisites including a running Kubernetes cluster (kind, minikube, or cloud-based) and the ability to execute kubectl and Helm commands, you’ll learn the complete deployment process from start to finish.

What You’ll Learn

Prerequisites and Setup

• Setting up a Kubernetes cluster (kind, minikube, or cloud-based)
• Installing and configuring kubectl and Helm
• Exploring the official zitadel/zitadel-charts repository
• Understanding deployment examples and configuration options

Database Configuration

• PostgreSQL Best Practices: Learn why providing your own PostgreSQL instance is recommended over Helm dependencies
• CloudNativePG Setup: Practical demonstration of setting up a simple but effective PostgreSQL cluster
• Database Credentials: Configuring admin and user database credentials securely
• Secret Management: Using environment variables for sensitive configuration data

Core Installation Process

• Adding the Zitadel Helm repository
• Configuring the deployment values file
• Setting up critical security configurations including master key management
• Executing the Helm installation with real terminal commands
• Troubleshooting common deployment issues

Accessing and Validating the Deployment

• Configuring external domain settings for local development
• Setting up port forwarding to access the Zitadel console
• Initial admin login and password configuration
• Validating the deployment with kubectl commands

Advanced Production Configurations

Security and Secrets Management

• Referenced Secrets: Enhanced security through Kubernetes secret integration
• Master Key Configuration: Secure generation and storage of encryption keys
• Non-root Execution: Security contexts for safer container operations

High Availability and Scaling

• Multi-replica Setup: Configuring high availability with multiple Zitadel instances
• Pod Disruption Budgets: Ensuring zero-downtime during updates and maintenance
• Resource Management: CPU, memory, and storage configuration for production workloads

Production Infrastructure

• Ingress Configuration: Setting up external access through ingress controllers
• TLS and DNS: Proper domain and certificate management
• Monitoring Integration: Metrics collection for Prometheus and service monitors
• Additional Manifests: Deploying complementary services like secrets, service mesh config, or OpenTelemetry collectors

Day-Two Operations

• Monitoring and observability setup
• Update and upgrade strategies
• Backup and disaster recovery considerations
• Performance tuning and optimization

Outcome

By the end of this tutorial, you’ll have a fully functional, production-ready Zitadel deployment running securely on Kubernetes, complete with:

• ✅ Secure PostgreSQL integration
• ✅ Proper secret management
• ✅ High availability configuration
• ✅ Monitoring and metrics collection
• ✅ Production-grade security settings
• ✅ External access configuration

This foundation prepares you for the next phase: setting up your first Zitadel project and configuring authentication flows.