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coolvds.com › Blog › DevOps & Infrastructure

Orchestration Wars: Kubernetes vs. Swarm vs. Nomad in a Post-Schrems II World

· CoolVDS Team

It is late 2020. Kubernetes has won the marketing war, but does your architecture actually require that level of complexity? We analyze the trade-offs between K8s, Docker Swarm, and HashiCorp Nomad, focusing on overhead, persistence, and why running these on compliant Norwegian NVMe VPS is critical for GDPR.

coolvds.com › Blog › DevOps & Infrastructure

Microservices Patterns in 2020: Surviving Latency, Chaos, and Schrems II

· CoolVDS Team

Architecting microservices isn't just about splitting code; it's about managing failure and latency. We break down the Sidecar and Circuit Breaker patterns, discuss the post-Schrems II legal landscape for Norwegian devs, and explain why your choice of VPS virtualization defines your cluster's stability.

coolvds.com › Blog › DevOps & Infrastructure

Container Security in 2020: Surviving the Wild West of Microservices

· CoolVDS Team

Container isolation is a myth if you're running as root. In this deep dive, we dismantle common Docker security failures, analyze the impact of Schrems II on your hosting choices, and show you how to lock down your stack before it hits production.

coolvds.com › Blog › Database Management

Database Sharding Strategies: Breaking the Monolith Without Breaking Production

· CoolVDS Team

Vertical scaling has a ceiling. When your InnoDB buffer pool exceeds physical RAM and NVMe I/O waits spike, it is time to talk about sharding. We explore application-level versus middleware-based sharding strategies relevant for high-traffic European workloads in 2020.

coolvds.com › Blog › Security & Compliance

Building a Zero-Trust Bastion: Why the Perimeter is Dead (and How to Fix It)

· CoolVDS Team

The 'castle and moat' security model failed the moment your team went remote in 2020. Here is a battle-tested guide to implementing Zero-Trust architecture on Linux using WireGuard, Nginx mTLS, and rigorous kernel hardening, specifically tailored for Norwegian data sovereignty.