DevOps

Deutsche Version

🎁 Alle 4 kostenlosen DevOps-Lead-Magneten

🎁 Alle 4 kostenlosen DevOps-Lead-Magneten – Lade die komplette Sammlung herunter: Karriere-Roadmap, Linux-Cheat-Sheet, Infrastruktur-Checkliste und Zertifizierungs-Studienplan. Alle kostenlosen Ressourcen herunterladen →

🚀 Der komplette DevOps-Lernpfad

Beginnen Sie Ihre DevOps-Reise mit der 4-teiligen Serie, die Sie von Anfänger zu einem produktionsreifen Ingenieur führt – Karriereweg, Grundlagen, Produktionsinfrastruktur und Zertifizierungsstrategie. Jeder Artikel unten ist auch in den Themenclustern weiter unten aufgelistet, sodass die Cluster die kanonische Inhaltsliste darstellen.

🎯 Hier beginnen: Karriereweg

Ihr Weg von absoluten Anfänger zu einem produktionsreifen DevOps-Profi – 5 Phasen, Zertifizierungsmeilensteine und Empfehlungen für die Produktions-Stacks.

🔹 📥 Kostenloser Download: DevOps-Karriere-Roadmap PDF →

💡 Warum es wichtig ist: Grundlagen

KI generiert Code, aber Verstehen ist wichtiger. Linux-Grundlagen sind die Grundlage für jede moderne DevOps- und KI-Workload.

🔹 📥 Kostenloser Download: Linux-Befehls-Cheat-Sheet →

🏗️ Bereitstellen: Produktionsinfrastruktur

Erstellen Sie eine komplette Produktionsinfrastruktur mit Open-Source-Tools – alle Komponenten arbeiten in einer kohärenten Architektur zusammen, von PostgreSQL und Redis bis hin zu MinIO, n8n und Observability.

🔹 📥 Kostenloser Download: Infrastruktur-Bereitstellungs-Checkliste →

🔹 **💾 Speicher-Tiefe: Ceph-Tiefe: RADOS, BlueStore, CRUSH und der Betrieb eines souveränen Speicherclusters →](/articles/devops/ceph-deep-dive-rados-bluestore-crush) - Die verteilte Speicher-Infrastruktur hinter OpenStack und dem Sovereign Cloud Stack: Architektur, CRUSH-Platzierung, BlueStore-Internas, cephadm-Operationen, Squid 19.2 und Tentacle 20.2.

🔹 🆓 Alle kostenlos: Produktions-Stacks – SSL, Datenbank, MinIO, n8n, Observability →

🎓 Validieren: Zertifizierungen

Vergleichen Sie LPI DevOps Tools Engineer, CKAD, CKA, Terraform Associate und AWS DevOps Engineer, um den richtigen Zertifizierungsweg für Ihre Karriere zu finden.

🔹 📥 Kostenloser Download: DevOps-Zertifizierungs-Studienplan →

🔹

DevOps

Deutsche Version

Deutsche Version

🎁 Alle 4 kostenlosen DevOps-Lead-Magneten

🚀 Der komplette DevOps-Lernpfad

🎯 Hier beginnen: Karriereweg

💡 Warum es wichtig ist: Grundlagen

🏗️ Bereitstellen: Produktionsinfrastruktur

🎓 Validieren: Zertifizierungen

Kubernetes & Containers

Kubernetes v1.37 'Garhwal': stability, pod identity, and AI/ML scheduling

Docker Hub Under the Microscope: 90% of Top Images Have Critical Vulnerabilities – Here’s How to Fix It

The Nix Adoption Ladder: Six Levels of Reproducible Infrastructure

Nix: From Zero to Hero — A Hands-On Path to Reproducible Everything

VM/Container/Pod Resource Tuning: A Comprehensive Production Guide

Flux 2.8 and Helm v4: The GitOps Upgrade Guide

Security & Hardening

The EU Cyber Resilience Act (CRA): All You Need to Know in 2026

Stripe Testing Best Practices: From Test Cards to Production Confidence

AI-Assisted Vulnerability Research: When Offense Meets Automation

AI Model Supply Chain Security: The LiteLLM Incident and What It Reveals

Kubernetes Security Tooling: Data-Driven Guide to the Open-Source Ecosystem in 2026

Graph-Powered OSINT: From Data to Investigation with Agentic AI

Monitoring & Observability

Own Your Telemetry: A Self-Hosted Observability Stack for Digital Sovereignty

The Stoic Unix Philosophy: Calm Tools for an Uncontrollable World

The Open-Source Infrastructure Stack: Production-Grade PostgreSQL, Redis, MinIO, n8n, and Observability

Incident Response and SRE Practices for Production Systems

DevOps in the Age of AI

Grafana for Infrastructure Observability: Dashboards, Alerting and Data Sources

Storage & Databases

k3s Disaster Recovery Testing and Edge Patterns

CephFS: From Zero to Hero — The Distributed Filesystem, End to End

SeaweedFS: Deep Dive!

Ceph Deep Dive: RADOS, BlueStore, CRUSH, and Running a Sovereign Storage Cluster

Disaster Recovery for Self-Hosted Infrastructure

k3s in Production: Upgrades, Backup, Disaster Recovery, and Known Issues

Networking

eBPF vs. Service Mesh: Why Kubernetes Access Control Needs Rethinking

NetworkPolicy Enforcement Deep Dive: eBPF (Cilium) vs iptables (Calico)

K3s Distributions Compared: Flannel, Calico, Cilium — CNI Performance and NetworkPolicy Reality

SCS OSISM Deployment Networking: VIPs, Network Separation, and Multi-Node Architecture

IPv6 Crosses 50%: The 28-Year Milestone

Kubernetes 1.36: Ingress-NGINX Is Dead, Migrate to Gateway API

Cloud, Edge & Digital Sovereignty

AI-Generated Infrastructure: Why Your Terraform Code Is a Security Risk (And How to Fix It)

OSISM: The Open Source Infrastructure Manager for Sovereign Clouds

npm v12 Breaking Changes: What Every JavaScript Developer Needs to Know

Sovereign Cloud Stack (SCS): Cloud in a Box Installation and Deployment Guide

MS365 Exit Strategies: Why Digital Sovereignty Starts with Implementation

Codeberg and Forgejo Actions: A Complete Guide for Self-Hosted CI/CD

CI/CD & Automation

Software Testing That Earns Its Keep: A Field Report from Three Codebases

FinOps in the CI: Cost Guardrails at Provisioning Time

Platform Engineering with Backstage: Building Internal Developer Portals

opencode-ansible: Agent-Native Infrastructure as Code with OpenCode

Running n8n in Production: Docker Compose, Queue Mode, and Postgres Backend

Kubernetes GitOps with ArgoCD: A Practical Guide

AI Operations

Testing in the Age of AI

The Literature Agreed: How 4,392 Research Papers Validated the Stoic Unix Philosophy

Running a 27B Hybrid SSM Model with 128k Context on a 12 GB Laptop GPU

Agent Observability with OpenTelemetry: Tracing LLM Calls and Agent Loops in Production

Loop Engineering: From Prompts to Durable Agent Loops

Setting Up OpenSpec with OpenCode: A Practical Guide

Email & Collaboration

SOGo 6 Dockerized: CI Fully Green + Open Call for Testers & Contributors

SOGo 6 Evaluation: A Technical Deep Dive

Building a Self-Hosted Groupware Stack: SOGo 6, Stalwart, and OpenLDAP in Docker

Stalwart vs Dovecot 2.4 CE: A Head-to-Head Mail Server Evaluation on Kubernetes

Career & Certification

DevOps Certifications in 2026: Which Ones Actually Matter for Your Career?

Linux, DevOps, and AI: Why Fundamentals Matter More Than Ever in 2026

Zero to DevOps in 2026: The Complete Career Path from Linux to AI Infrastructure

Agile, Wu Wei, and the Art of Effortless DevOps

More DevOps

HTTP QUERY Is Here: What RFC 10008 Means for API Design

Vision Pro CloudXR: Hybrid Rendering Arrives for Spatial Computing

🆓 Kostenlose Ressourcen

🎓 LPI-Zertifizierungs-Praxis