Introduction Single Sign-On (SSO) has become essential for modern organizations managing multiple applications and services. Authentik is an open-source identity provider that offers comprehensive authentication and authorization capabilities, supporting both OIDC and SAML protocols. Unlike traditional authentication systems, Authentik provides…
Database disasters strike without warning. Whether it’s accidental data deletion, corruption, or system failures, having reliable point-in-time recovery capabilities can mean the difference between a minor inconvenience and a business-critical outage. In this comprehensive tutorial, we’ll walk you through setting…
Introduction Database high availability is crucial for modern applications, and MySQL 8.4 LTS provides robust solutions through InnoDB Cluster with Group Replication. This architecture ensures automatic failover, data consistency, and zero-downtime maintenance windows. In this comprehensive guide, we’ll deploy a…
GitOps has revolutionized how teams deploy and manage applications in Kubernetes environments, providing declarative configuration management with Git as the single source of truth. When combined with a lightweight k3s cluster, Flux v2, encrypted secrets management through SOPS/age, and modern…
Introduction Building a production-ready Retrieval-Augmented Generation (RAG) system requires careful orchestration of multiple components working seamlessly together. RAG combines the power of large language models with external knowledge bases to provide contextually accurate responses. This comprehensive tutorial will guide you…
Modern applications require comprehensive observability to maintain optimal performance and reliability. This tutorial demonstrates how to deploy a complete observability stack using OpenTelemetry Collector, Prometheus, Loki, Tempo, and Grafana on Ubuntu 24.04 LTS. You’ll learn to collect metrics, logs, and…
Introduction As privacy concerns continue to grow in the digital landscape, Encrypted Client Hello (ECH) emerges as a critical technology for protecting user privacy during TLS handshakes. ECH encrypts the Server Name Indication (SNI) field, preventing network observers from seeing…
Building a robust, highly available PostgreSQL cluster is crucial for production applications that demand zero downtime and data consistency. This comprehensive tutorial will guide you through deploying a three-node PostgreSQL 16 cluster using Patroni for automated failover, etcd for distributed…
Introduction Building a highly available object storage solution requires distributed storage that can survive node failures while maintaining data integrity. MinIO provides enterprise-grade object storage with S3 compatibility, making it an excellent self-hosted alternative to cloud storage services. In this…
Introduction The infrastructure-as-code landscape experienced a seismic shift in 2023 when HashiCorp changed Terraform’s licensing from Mozilla Public License 2.0 to Business Source License 1.1. This prompted the Linux Foundation to create OpenTofu, a truly open-source fork that maintains full…
