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coolvds.com › Blog › DevOps & Infrastructure

GitOps on Kubernetes: Bulletproof Workflows for Nordic DevOps

· CoolVDS Team

Stop SSH-ing into production. Learn how to architect a resilient GitOps workflow using ArgoCD and K3s, ensuring GDPR compliance and sub-millisecond latency for Norwegian infrastructure.

coolvds.com › Blog › Security & Compliance

Zero-Trust Architecture on Linux: Surviving the Post-Perimeter Era

· CoolVDS Team

The 'castle-and-moat' security model is dead. Learn how to implement a true Zero-Trust architecture using SSH CAs, WireGuard, and nftables on Ubuntu 22.04, ensuring compliance with Norwegian data laws.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: From CNI Wars to IPVS Optimization

· CoolVDS Team

Stop debugging random DNS timeouts and start architecting for throughput. We explore Calico vs. Cilium, the limitations of iptables, and why underlying hardware is the ultimate bottleneck for K8s networking in 2022.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs Monitoring: Why Your Green Dashboard is Lying to You

· CoolVDS Team

Monitoring tells you the server is up. Observability tells you why the checkout failed. We break down the technical differences, the stack (Prometheus, Loki, OpenTelemetry), and why hosting your observability stack in Norway matters for GDPR in 2022.

coolvds.com › Blog › Database Management

Database Sharding Strategies: Escaping the Single-Master Bottleneck

· CoolVDS Team

A battle-hardened guide to horizontal scaling in 2022. We analyze when to shard, how to implement geo-partitioning for GDPR compliance in Norway, and why underlying hardware latency dictates distributed database success.

coolvds.com › Blog › DevOps & Infrastructure

Stop Waiting for Builds: Optimizing CI/CD Pipelines on Norwegian Soil

· CoolVDS Team

Your 20-minute build time is a symptom of poor I/O, not code complexity. Here is how we cut pipeline latency by 60% using Docker BuildKit, proper caching strategies, and NVMe-backed infrastructure in Oslo.

coolvds.com › Blog › DevOps & Infrastructure

GitOps Architecture: Stop Using 'kubectl apply' in Production

· CoolVDS Team

Manual deployments are a ticking time bomb. This guide details a battle-tested GitOps workflow using ArgoCD and K8s, specifically designed for high-compliance environments in Norway.