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coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: Escaping the Overlay Tax

· CoolVDS Team

A battle-hardened look at K8s networking performance in 2019. We dissect CNI plugins, kernel tuning, and why the underlying hardware determines whether your cluster flies or crawls.

coolvds.com › Blog › DevOps & Infrastructure

GitOps is Non-Negotiable: Mastering ArgoCD v1.0 on Kubernetes

· CoolVDS Team

Stop manually applying manifests. We explore the newly released ArgoCD v1.0, the shift to declarative continuous delivery, and why high-performance NVMe infrastructure in Norway is critical for your reconciliation loops.

coolvds.com › Blog › Security & Compliance

Container Security in 2019: Hardening Docker and Kubernetes for Production

· CoolVDS Team

Containers aren't magic security boxes. From the recent runC vulnerability to kernel isolation, we break down how to secure your stack using 2019's best practices, leveraging strict KVM boundaries and immutable infrastructure principles.

coolvds.com › Blog › DevOps & Infrastructure

GitOps Architectures in 2019: Killing Manual Deployments on Kubernetes

· CoolVDS Team

Stop SSH-ing into your servers. In this deep dive, we explore why Pull-based GitOps workflows using Flux and Helm are the only scalable way to manage Kubernetes clusters in compliance-heavy Norwegian environments.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: Surviving the Packet Jungle in Production

· CoolVDS Team

Kubernetes networking is not magic—it's a complex layer of iptables, CNI plugins, and encapsulation. In this 2019 guide, we dissect the flow of a packet, debug CoreDNS latency, and explain why high-performance KVM instances are critical for network stability.

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

Kubernetes Networking Deep Dive: Moving Beyond iptables to IPVS in Production

· CoolVDS Team

Is your Kubernetes cluster choking under load? The culprit might be your networking stack. We dissect the shift from iptables to IPVS, evaluate CNI choices like Calico vs. Flannel, and explain why underlying infrastructure latency matters for Norwegian deployments.

coolvds.com › Blog › DevOps & Infrastructure

GitOps in Production: Stop SSH-ing Into Your Kubernetes Clusters

· CoolVDS Team

It is October 2018. If you are still manually editing config maps or running kubectl apply from your laptop, you are building a house of cards. Here is how to implement a robust GitOps workflow using GitLab CI and Kubernetes, ensuring compliance and stability in the Norwegian hosting market.

coolvds.com › Blog › DevOps & Infrastructure

GitOps Workflows for Kubernetes: Stop Manually Breaking Production

· CoolVDS Team

Manual `kubectl apply` is a disaster waiting to happen. Learn how to implement a rigid GitOps workflow using GitLab CI and Helm 2 on high-performance infrastructure, ensuring your Norwegian deployments are compliant, reproducible, and rollback-ready.

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