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Insights, tutorials, and updates from the CoolVDS team

Building a CI/CD Pipeline on CoolVDS

Step-by-step guide to setting up a modern CI/CD pipeline using Firecracker MicroVMs.

5 Ways to Optimize Your Cloud Costs

Practical tips to reduce your cloud infrastructure costs without sacrificing performance.

Firecracker MicroVMs: The Future of Serverless

Discover why Firecracker MicroVMs are changing the serverless landscape with sub-second boot times.

Getting Started with GPU Slicing for AI Workloads

Learn how to maximize your AI inference performance with GPU slicing technology on CoolVDS.

Multi-Cloud is a Trap (Unless You Do It Right): A 2023 Blueprint for Norwegian Infrastructure

Stop bleeding budget on hyperscaler egress fees. Discover how to architect a compliant, high-performance hybrid setup using CoolVDS as your secure Nordic core and public clouds for specific workloads.

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

Monitoring tells you the server is up. Observability tells you why the checkout is slow. We break down the technical differences, the resource costs of tracing, and why infrastructure isolation is critical for accurate data.

Optimizing Kubernetes for AI/ML: Beating I/O Bottlenecks and GDPR Nightmares in Norway

Running AI workloads on generic cloud infrastructure is a recipe for latency and compliance failures. We dissect the specific Kubernetes configurations, NVMe requirements, and sovereignty strategies needed for high-performance ML in 2023.

Database Sharding Strategies: Surviving Scale When Vertical Upgrades Fail

Stop throwing RAM at your database bottlenecks. A battle-hardened guide to implementing horizontal sharding strategies for high-traffic applications in the Nordic region, focusing on MySQL architectures and NVMe performance.

CI/CD Pipeline Optimization: Killing the I/O Bottleneck in High-Velocity DevOps

Your build times aren't slow because of your code; they're slow because of your runner's disk I/O. We analyze the impact of NVMe storage, aggressive caching strategies, and geographic latency on CI pipelines.

Automating Compliance: How to Survive Datatilsynet Audits with Ansible & OpenSCAP in 2023

Manual server hardening is a liability. Learn how to automate CIS benchmarks, enforce GDPR-compliant data residency in Norway, and implement continuous security monitoring using Ansible and OpenSCAP.

Serverless Without the Vendor Lock-in: Building High-Performance Event Architectures in Norway

Stop paying the 'hyperscaler tax' and suffering cold starts. Learn how to deploy a robust, self-hosted serverless architecture using K3s and OpenFaaS on NVMe VPS instances for uncompromised control and latency.

Edge Computing in the Nordics: Why "Region: Oslo" is Your Only Viable Strategy

Physics is stubborn. For Nordic users, serving from Frankfurt isn't edge—it's legacy. We break down a K3s-based edge deployment architecture using local Norwegian infrastructure to slash latency and satisfy Datatilsynet.

Kubernetes vs. Docker Swarm vs. Nomad: The 2023 Orchestration Battleground for Norwegian DevOps

We strip away the hype to compare the top container orchestrators of 2023. Learn why disk I/O latency is the silent killer of Kubernetes clusters and how local Norwegian infrastructure solves the Schrems II compliance nightmare.

Zero-Trust Architecture in 2023: Killing the VPN and Hardening Linux Infrastructure

The 'castle-and-moat' security model is dead. Learn how to implement true Zero-Trust on Linux using SSH certificates, WireGuard, and mTLS, specifically tailored for Norwegian compliance standards.

Microservices in Production: 3 Architecture Patterns That Won't Fail at Scale (Dec 2023 Edition)

A battle-hardened guide to implementing microservices without destroying system reliability. We cover the Strangler Fig, Circuit Breakers, and Sagas, specifically tailored for the Nordic infrastructure landscape.

Surviving Distributed Hell: Battle-Tested Microservices Patterns for Nordic Ops

Monoliths are safe; microservices are a minefield. We break down the architecture patterns that actually survive production in 2023, focusing on latency reduction via NIX, GDPR compliance, and why raw KVM often beats managed Kubernetes.

K8s vs. Swarm vs. Nomad: Choosing Your Orchestrator Without Blowing Up Production (2023 Edition)

A battle-hardened comparison of container orchestration tools for Nordic DevOps teams. We analyze overhead, complexity, and latency requirements strictly for late 2023 infrastructure.

Container Breakouts Are Real: Hardening Docker & Kubernetes on Norwegian Infrastructure

Container isolation is a myth without proper configuration. We explore kernel-level hardening, immutable infrastructure, and why true KVM virtualization is non-negotiable for compliance in 2023.

Microservices Architecture Patterns: Implementing Resilience on Bare-Metal Performance (2023 Edition)

Stop building distributed monoliths. A battle-hardened look at implementing the API Gateway, Circuit Breaker, and Database-per-Service patterns on high-performance infrastructure, tailored for the Norwegian market.

Kubernetes vs. Swarm vs. Nomad: A Pragmatic Orchestration Guide for 2024

Stop over-engineering your infrastructure. We benchmark Kubernetes, Docker Swarm, and Nomad on Nordic bare-metal performance, analyzing overhead, latency, and compliance for Norwegian dev teams.

Stop Watching Paint Dry: Optimizing CI/CD Pipelines on Norwegian Infrastructure

Slow build times are killing your team's velocity. We dissect the root causes of pipeline latency—from I/O bottlenecks to network hops—and show you how to cut deployment times by 60% using optimized KVM runners.

CI/CD Bottlenecks: Optimizing Build Pipelines on Norwegian Infrastructure

Stop blaming your code for slow builds. We dissect how I/O wait and CPU steal time on cheap VPS providers strangle your DevOps agility, and how to fix it with proper KVM isolation and NVMe storage in the Norwegian market.

Automating GDPR Compliance: From 'Schrems II' Panic to CI/CD Certainty

Manual security audits are a liability. Learn how to automate server hardening on Norwegian infrastructure using Ansible and OpenSCAP to satisfy Datatilsynet without slowing down deployment.

Surviving the Blackout: A Pragmatic Disaster Recovery Guide for Norwegian Systems

Hope is not a strategy. From immutable backups to cross-region replication, we detail the exact technical architecture needed to survive ransomware and outages in 2023 without violating GDPR.

The Autopsy of a Crash: Building a Self-Hosted, GDPR-Safe APM Stack in 2023

Stop relying on expensive US-based SaaS for observability. Learn how to deploy a high-performance, self-hosted OpenTelemetry stack on NVMe storage to keep your metrics granular and your data inside Norway.

Database Sharding Strategies: Surviving Scale Without Melting Your Architecture

A battle-hardened guide to horizontal scaling for high-traffic Norwegian applications. We cover sharding strategies, MySQL/PostgreSQL implementations, and why network latency in Oslo matters more than you think.

Service Mesh Survival Guide: Implementing Istio and Linkerd in High-Latency Environments

Microservices solve organizational scaling but introduce operational chaos. This guide cuts through the hype to implement a stable Service Mesh (Istio/Linkerd) on Kubernetes 1.28+, focusing on mTLS, traffic splitting, and handling the resource tax on Norwegian infrastructure.

Stop the Bleed: A Brutally Honest Guide to Cloud Cost Optimization in 2023

Cloud bills are silently killing European startups. From battling AWS egress fees to leveraging Norwegian NVMe infrastructure, here is the battle-tested roadmap to cutting infrastructure costs by 40% without sacrificing performance.

Disaster Recovery in 2023: Why Your 'Backups' Will Fail When You Need Them Most

Hope is not a strategy. A battle-hardened guide to designing disaster recovery plans that actually work, focusing on immutable backups, Norwegian data sovereignty, and minimizing RTO with NVMe infrastructure.

GitOps in Production: Building Bulletproof CI/CD Pipelines on Norwegian Infrastructure

Manual deployments are a liability. Learn how to implement a rigorous GitOps workflow using ArgoCD and Kubernetes on high-performance KVM instances, ensuring GDPR compliance and zero-downtime rollbacks.