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coolvds.com › Blog › DevOps & Infrastructure

Serverless on Metal: Implementing FaaS Patterns Without the Hyperscaler Tax

· CoolVDS Team

Dissecting serverless architecture patterns for Nordic enterprises. We move beyond the AWS Lambda hype to explore self-hosted FaaS on KVM, addressing GDPR compliance, latency in Norway, and the specific configurations required to make OpenFaaS sing on CoolVDS NVMe instances.

coolvds.com › Blog › DevOps & Infrastructure

Microservices Architecture Patterns: Building Resilient Systems in the Nordic Cloud

· CoolVDS Team

A battle-hardened guide to implementing the Circuit Breaker, Sidecar, and Saga patterns in 2023. Learn why network latency in Oslo matters, how to handle GDPR compliance with distributed databases, and why KVM-based NVMe infrastructure is non-negotiable for high-traffic clusters.

coolvds.com › Blog › DevOps & Infrastructure

Surviving the Microservices Hype: Patterns That Won't Wake You at 3 AM

· CoolVDS Team

Microservices solve scalability but introduce network chaos. Here are three battle-tested architecture patterns—Gateway Aggregation, Circuit Breaking, and Async Eventing—that prevent distributed monolith disasters. Written for the Norwegian DevOps engineer dealing with GDPR and latency constraints.

coolvds.com › Blog › DevOps & Infrastructure

Cloud Cost Optimization in 2023: Escaping the Hyperscaler Tax in Norway

· CoolVDS Team

Inflation is eating IT budgets. Learn pragmatic strategies to cut cloud costs by 40% using right-sizing, localizing data in Norway, and avoiding egress traps. Includes specific K8s configs and Linux monitoring tools.

coolvds.com › Blog › AI & Machine Learning

ChatGPT vs. GDPR: Architecting Compliant AI Middleware in Norway

· CoolVDS Team

It is January 2023, and conversational AI is booming. But sending Norwegian customer data to US APIs is a compliance minefield. Here is how to build a low-latency, privacy-preserving AI proxy layer.

coolvds.com › Blog › Security & Compliance

Container Breakouts Are Real: Locking Down Docker and Kubernetes in 2022

· CoolVDS Team

Default container configurations are a security liability. We explore rigorous hardening strategies—from dropping capabilities to enforcing read-only filesystems—and explain why the underlying virtualization layer matters for Norwegian compliance.

coolvds.com › Blog › Database Management

Database Sharding Strategies: The Nuclear Option for High-Scale Systems

· CoolVDS Team

Sharding is complex, risky, and expensive. This guide for senior engineers covers when to shard, how to implement hash vs. range strategies using MySQL 8.0, and why infrastructure latency in Norway is the silent killer of distributed databases.

coolvds.com › Blog › Security & Compliance

Zero-Trust Architecture on Linux: Beyond the VPN Perimeter (2022 Guide)

· CoolVDS Team

The traditional firewall perimeter is dead. Learn how to implement a rigorous Zero-Trust security model using WireGuard, SSH Certificates, and NFTables on Norwegian infrastructure to satisfy Datatilsynet and sleep better at night.

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.