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coolvds.com › Blog › DevOps & Infrastructure

Cloud Cost Optimization: Escaping the Hyperscaler Tax in 2023

· CoolVDS Team

With the USD/NOK exchange rate volatile and energy prices soaring, the 'pay-as-you-go' model is becoming a liability. Here is a pragmatic technical guide to cutting cloud overhead without sacrificing IOPS or compliance.

coolvds.com › Blog › DevOps & Infrastructure

Silence is Fatal: The Reality of Infrastructure Monitoring at Scale in 2022

· CoolVDS Team

Green dashboards don't mean happy users. We dissect the architecture of high-fidelity monitoring using Prometheus and Grafana, the pitfalls of standard cloud metrics, and why data sovereignty in Norway is more than just a legal checkbox.

coolvds.com › Blog › DevOps & Infrastructure

Microservices in Production: 4 Patterns to Avoid Distributed Monolithic Hell (2022 Edition)

· CoolVDS Team

Moving from monolith to microservices often results in a 'distributed monolith' that is harder to debug and slower to run. In this guide, we dissect the architectural patterns that actually work in 2022, focusing on API Gateways, resiliency, and the critical role of underlying infrastructure in the Norwegian market.

coolvds.com › Blog › Security & Compliance

Disaster Recovery for Norwegian VPS: Beyond the "3-2-1" Cliché

· CoolVDS Team

Relying on RAID is not a disaster recovery plan. In a post-Schrems II era, we explore how to architect immutable, encrypted backups for PostgreSQL on Norwegian infrastructure using BorgBackup and systemd, ensuring compliance with Datatilsynet while minimizing RTO.

coolvds.com › Blog › DevOps & Infrastructure

CI/CD Pipelines Are Dying on Cheap Disk I/O: A 2022 Survival Guide

· CoolVDS Team

Slow builds aren't just annoying; they bleed budget. Discover how to identify I/O bottlenecks, optimize Docker layer caching, and why NVMe storage is non-negotiable for serious DevOps in the Nordic market.

coolvds.com › Blog › DevOps & Infrastructure

Stop Guessing: A Battle-Hardened Guide to APM & Observability on Linux

· CoolVDS Team

Logs don't lie, but they are often silent about the root cause. Here is how to build a robust APM stack in 2022 using open-source tools, focusing on metrics, tracing, and the hardware reality beneath your virtualization.

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.