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coolvds.com › Blog › DevOps & Infrastructure

Cloud Repatriation & Cost Surgery: Reducing Hosting Bills by 60% in 2025

· CoolVDS Team

Hyperscaler bills are bleeding your budget dry. Learn actionable techniques—from identifying zombie resources to implementing aggressive Nginx caching—to reclaim control. We explore why moving workloads back to high-performance VPS in Norway is the ultimate cost optimization strategy.

coolvds.com › Blog › Database Management

Zero-Downtime Database Migrations: A Survival Guide for Norwegian DevOps

· CoolVDS Team

Migrating a production database without losing data or sleep requires military-grade precision. We break down the replication-based strategy for PostgreSQL and MySQL, focusing on low-latency execution within the Nordic infrastructure.

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 is failing. We dissect the technical differences, implementation strategies using OpenTelemetry, and why data sovereignty in Norway matters for your logs.

coolvds.com › Blog › DevOps & Infrastructure

CI/CD Pipeline Optimization in 2025: From 20-Minute Builds to 45 Seconds

· CoolVDS Team

Slow pipelines are the silent killer of engineering velocity. Learn how to optimize CI/CD I/O bottlenecks, configure self-hosted runners on NVMe infrastructure, and leverage local Oslo peering for instant registry pulls.

coolvds.com › Blog › DevOps & Infrastructure

Silence is Loud: Why Your 'Green' Dashboard is Lying About Downtime

· CoolVDS Team

Standard CPU graphs won't save you at 3 AM. A battle-hardened guide to implementing full-stack observability on Norwegian infrastructure, dealing with NVMe bottlenecks, and keeping Datatilsynet happy.