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coolvds.com › Blog › Database Management

Database Sharding Strategies: Scaling Beyond the Monolith in 2021

· CoolVDS Team

Hit the ceiling on your vertical scaling? We dive deep into practical sharding strategies, key-based vs. range-based architectures, and why local NVMe storage matters for Norwegian data residency.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: Surviving the Overlay Network Tax

· CoolVDS Team

Kubernetes networking is often treated as a black box until production latency spikes. We analyze CNI choices, IPVS vs iptables, and why underlying hardware stability is critical for overlay networks in the post-Schrems II era.

coolvds.com › Blog › DevOps & Infrastructure

Container Security in 2021: Locking Down Docker and Kubernetes Before Production

· CoolVDS Team

With the recent SolarWinds fallout and the deprecation of Docker shim in Kubernetes 1.20, security is the only metric that matters right now. Here is a battle-tested guide to hardening your container infrastructure in Norway, covering non-root users, capability dropping, and why hardware isolation still beats software namespaces.

coolvds.com › Blog › DevOps & Infrastructure

Microservices in Production: Architecture Patterns for Survival (2020 Edition)

· CoolVDS Team

Moving from monolith to microservices isn't just a code change; it's an operational paradigm shift. We dissect critical patterns, necessary infrastructure tuning, and why the Schrems II ruling makes your hosting location more important than ever.

coolvds.com › Blog › DevOps & Infrastructure

Microservices on Bare Metal: Surviving Latency and Schrems II in 2020

· CoolVDS Team

Microservices solve scaling issues but introduce network hell. In light of the recent Schrems II ruling, we analyze how to architect resilient systems on Norwegian infrastructure without relying on US public clouds.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: Surviving the Packet Storm in a Post-Schrems II World

· CoolVDS Team

Kubernetes networking is a notorious black box of latency and complexity. In light of the recent Schrems II ruling, hosting data in Norway is no longer optional—it's survival. This guide dissects CNI choices, kube-proxy modes, and why raw IOPS matters more than you think.

coolvds.com › Blog › DevOps & Infrastructure

Stop the Bleeding: A Pragmatic Guide to Cloud Cost Control in 2020

· CoolVDS Team

While the promise of 'pay-as-you-go' sounded perfect, the reality for many Norwegian CTOs is unpredictable billing and hidden egress fees. Here is how to audit your infrastructure, reclaim wasted resources, and why fixed-cost NVMe performance is the stabilizer your budget needs.