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coolvds.com › Blog › DevOps & Infrastructure

Mastering GitOps Workflows: Moving Beyond "kubectl apply" in 2020

· CoolVDS Team

Stop managing production clusters manually. Learn how to implement a robust GitOps pipeline using ArgoCD, GitLab CI, and Terraform, specifically tailored for Norwegian compliance and high-performance KVM environments.

coolvds.com › Blog › DevOps & Infrastructure

Container Security in 2020: Stop Running as Root or Go Home

· CoolVDS Team

Containers provide isolation, not security. From dropping Linux capabilities to mitigating the 'runc' vulnerability, here is the battle-hardened guide to securing your Docker infrastructure in Norway.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs. Monitoring: Why Green Dashboards Are Lying to You

· CoolVDS Team

Monitoring tells you the server is up. Observability tells you why the checkout is failing for 1% of users in Oslo. We dissect the 'Three Pillars' stack (Prometheus, ELK, Jaeger) and why infrastructure ownership is the root of true visibility.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs Monitoring: Why Your Green Dashboards Are Lying to You

· CoolVDS Team

Monitoring tells you the server is up. Observability tells you why the API latency just spiked by 400ms. A 2020 guide for Nordic DevOps engineers on moving from "Green/Red" lights to deep system insights using Prometheus, ELK, and proper infrastructure.

coolvds.com › Blog › DevOps & Infrastructure

Escaping the Public Cloud Tax: High-Performance MinIO on Kubernetes

· CoolVDS Team

Stop bleeding money on egress fees. Learn how to deploy a production-ready, S3-compatible object storage layer using MinIO on Kubernetes, optimized for local NVMe performance and Norwegian data sovereignty.

coolvds.com › Blog › Security & Compliance

Kill the VPN: A Pragmatic Guide to Zero-Trust Networking on Linux

· CoolVDS Team

The 'castle-and-moat' security model is dead. Learn how to implement SSH Certificates, mTLS, and WireGuard to build a Zero-Trust architecture that keeps your Norwegian infrastructure compliant and secure.

coolvds.com › Blog › DevOps & Infrastructure

Edge Computing in Norway: Crushing Latency Below 10ms with Local Infrastructure

· CoolVDS Team

Physics doesn't negotiate. Stop routing critical traffic to Frankfurt. We explore real-world edge computing architectures for the Norwegian market in 2020, specifically focusing on IoT aggregation, localized caching, and the specific kernel tuning required to minimize jitter.

coolvds.com › Blog › Performance Optimization

Squeezing the Kernel: Advanced API Gateway Tuning for < 10ms Latency

· CoolVDS Team

Default configurations are killing your API performance. We dive deep into NGINX worker settings, Linux kernel TCP hardening, and why NVMe storage is non-negotiable for high-throughput gateways in 2020.

coolvds.com › Blog › DevOps & Infrastructure

Crushing API Latency: Gateway Tuning from the Oslo Trenches

· CoolVDS Team

Latency isn't just a metric; it's a business killer. Learn how to tune the Linux kernel and Nginx for high-throughput API gateways, and why hardware isolation is your only defense against jitter.

coolvds.com › Blog › DevOps & Infrastructure

Stop Guessing: The Art of Brutally Honest Application Performance Monitoring

· CoolVDS Team

CPU graphs lie. In 2020, 'it works on my machine' is a fireable offense. We dissect the Golden Signals of monitoring, configuring Prometheus on Ubuntu 18.04, and why placing your data in Norway is a latency imperative, not just a legal one.

coolvds.com › Blog › DevOps & Infrastructure

Monitoring at Scale: Why Your "Green" Dashboard is Lying to You

· CoolVDS Team

Standard uptime checks won't save you from the 3 AM PagerDuty call. We dive deep into Prometheus architecture, the RED method, and why NVMe storage is critical for time-series data integrity in 2020.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes vs. Docker Swarm in 2020: A Norwegian Sysadmin’s Reality Check

· CoolVDS Team

It’s 2020. Kubernetes won the war, but Docker Swarm is still fighting for the small battles. We analyze the orchestration landscape, the critical role of NVMe storage for etcd stability, and why data residency in Norway matters more than ever.

coolvds.com › Blog › DevOps & Infrastructure

Surviving the Split: Battle-Tested Microservices Patterns for 2020

· CoolVDS Team

Monoliths are safe, but microservices are inevitable at scale. Here is a no-nonsense guide to the architecture patterns that actually work in production, specifically tailored for the Norwegian infrastructure landscape of late 2019.

coolvds.com › Blog › DevOps & Infrastructure

Container Isolation is a Myth: Hardening Docker for Production in 2020

· CoolVDS Team

It is late 2019, and the runc vulnerability proved that containers aren't virtual machines. This guide covers specific kernel capabilities, read-only filesystems, and the infrastructure architecture required to secure Norwegian workloads.

coolvds.com › Blog › Technology Trends

Redis 6.0 RC1: Multi-Threading, ACLs, and the End of Stunnel

· CoolVDS Team

The first Release Candidate for Redis 6.0 dropped yesterday. We benchmark the new multi-threaded I/O, explore granular Access Control Lists (ACLs), and explain why your Nordic infrastructure needs to prepare for this shift in 2020.

coolvds.com › Blog › DevOps & Infrastructure

Service Mesh Implementation: Taming Microservices Chaos with Istio 1.4

· CoolVDS Team

Microservices solve scaling issues but introduce networking nightmares. Learn how to implement Istio 1.4 on Kubernetes to regain control, enforce mTLS, and why underlying infrastructure performance makes or breaks your mesh.