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coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking in 2021: Surviving the Packet Jungle and Schrems II

· CoolVDS Team

A battle-hardened guide to navigating CNI choices, debugging DNS latency, and ensuring GDPR compliance post-Schrems II. We dissect Calico vs. Cilium, optimize NGINX Ingress, and explain why your underlying infrastructure dictates network performance.

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

Kubernetes vs. Docker Swarm: The 2021 Infrastructure Reality Check

· CoolVDS Team

With Kubernetes 1.20 deprecating Docker support, the orchestration wars are heating up again. We dissect the trade-offs between K8s complexity and Swarm simplicity, while proving why underlying NVMe storage is the only metric that truly matters for cluster stability.

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

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

Kubernetes Networking Deep Dive: CNI, IPVS, and Why Latency Kills Clusters

· CoolVDS Team

A battle-hardened guide to optimizing Kubernetes networking in 2020. We strip away the hype to focus on CNI selection, IPVS vs. iptables, and why the Schrems II ruling makes Norwegian infrastructure the only safe bet for your data.

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.

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