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coolvds.com › Blog › DevOps & Infrastructure

GitOps Workflows: Stop Using 'kubectl' in Production (2018 Edition)

· CoolVDS Team

Manual deployments are a liability. Learn how to implement a GitOps workflow using Kubernetes, GitLab CI, and Weave Flux to secure your CI/CD pipeline, satisfy GDPR audit requirements, and why high-performance NVMe VPS is the bedrock of reliable container orchestration.

coolvds.com › Blog › Security & Compliance

Disaster Recovery in a Post-GDPR World: A Norwegian CTO’s Playbook

· CoolVDS Team

It is December 2018. GDPR is enforced. Is your infrastructure resilient enough to handle a total site failure without violating Datatilsynet regulations? We break down the RTO/RPO math, MySQL replication strategies, and why sovereignty matters.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking on Bare Metal: Escaping Iptables Hell in 2018

· CoolVDS Team

A deep dive into K8s networking primitives for ops engineers. We benchmark Flannel vs. Calico, analyze IPVS performance gains, and explain why underlying network latency matters more than your CNI plugin.

coolvds.com › Blog › DevOps & Infrastructure

When RAID Fails: A Battle-Hardened Guide to Disaster Recovery in 2018

· CoolVDS Team

Disaster recovery isn't just about backups; it's about survival. Learn how to architect a failover strategy that keeps the Datatilsynet happy and your uptime intact using KVM, rsync, and Norwegian infrastructure.

coolvds.com › Blog › Database Management

Zero-Downtime Database Migration: The Battle-Tested Strategy for Norwegian Ops

· CoolVDS Team

Stop relying on 'maintenance windows' and hope. This guide details a master-slave replication strategy using Percona XtraBackup on NVMe infrastructure to achieve near-zero downtime migrations, strictly adhering to GDPR and Norwegian data sovereignty standards.

coolvds.com › Blog › DevOps & Infrastructure

Surviving the Microservices Hype: Architecture Patterns for 2018

· CoolVDS Team

Moving from monolith to microservices introduces complexity. We explore battle-tested patterns like API Gateways, Circuit Breakers, and Service Discovery using NGINX and Consul, specifically tailored for the Norwegian hosting landscape.

coolvds.com › Blog › DevOps & Infrastructure

Stop `kubectl apply`-ing Production: Implementing GitOps Workflows in 2018

· CoolVDS Team

Manual deployments are creating snowflake servers. Learn how to implement a rigid GitOps workflow using GitLab CI, Kubernetes, and Terraform to ensure your infrastructure matches your code—compliant with the new GDPR rules.

coolvds.com › Blog › DevOps & Infrastructure

API Gateway Tuning: Squeezing Milliseconds on Linux (2018 Edition)

· CoolVDS Team

Is your API gateway choking on 10k concurrent connections? Stop blaming the code. In this guide, we dissect Linux kernel tuning, NGINX worker optimization, and why NVMe storage is non-negotiable for low-latency Norwegian architecture.