Azure Kubernetes Application Network, Part 2: Zero-Trust and Multi-Cluster Patterns

In Part 1, we discussed the AppNet architecture, setup process, and waypoint model. This second part shifts focus from mechanics to platform patterns: it covers enforcing service-to-service authorization for a payments platform, and then using AppNet across AKS clusters for active-active regional architectures. Series navigation Part 1: What AppNet is and how to get started Part 2: Zero-trust and multi-cluster patterns Part 3: AI gateway, observability and production fit Example one: Zero-trust authorization for a payments platform Zero-Trust Authorization — Payments Namespace ...

June 7, 2026 · 8 min · 1564 words · Jurgen Allewijn

Azure Kubernetes Chronicles 12: The Future of Multi-Cluster

Fleet, Arc, sovereign clouds, and the edge-first world of 2030 This article is the last part of the Azure Kubernetes Chronicles: Multi-Cluster Edition. Read the series introduction here. Examining today’s multi-cluster landscape, it is tempting to focus solely on the pain points: identity fragmentation, policy drift, networking complexity, and monitoring silos. But the story does not end there. Kubernetes itself has evolved from a single-cluster dream to a multi-cluster necessity, and the governance ecosystem around it is growing just as quickly. To understand where things are headed, we have to look beyond today’s tools and into the future that is already taking shape. ...

October 28, 2025 · 5 min · 857 words · Jurgen Allewijn

Azure Kubernetes Chronicles 8: Fleet in Focus

Azure Kubernetes Chronicles 8: Fleet in Focus Azure’s multi-cluster powerhouse — and where it falls short This article is part of the Azure Kubernetes Chronicles: Multi-Cluster Edition. Read the series introduction here. When Microsoft introduced Azure Kubernetes Fleet Manager, it was met with both excitement and curiosity. For years, platform teams running multiple AKS clusters had been piecing together governance with scripts, policies, and half-baked federation approaches. Fleet arrived with the promise of simplification: a central way to govern clusters, propagate policies, and even distribute workloads across Azure regions. ...

September 24, 2025 · 4 min · 793 words · Jurgen Allewijn

Azure Kubernetes Chronicles 7: The Multi-Cluster Reality

From the dream of one perfect cluster to the messy truth of enterprise sprawl This episode is part of the Azure Kubernetes Chronicles: Multi-Cluster Edition. Read the series introduction here. When Kubernetes first entered the enterprise, many platform teams envisioned a single, perfect cluster; a hub where all workloads could reside, scale smoothly, and be governed consistently. The reality turned out very different. Today, almost no enterprise runs just one cluster. Instead, organizations find themselves managing multiple clusters scattered across regions, cloud providers, and even edge sites. This isn’t random chaos; it’s the result of regulatory demands, business continuity strategies, performance requirements, and the rise of edge computing. ...

September 18, 2025 · 5 min · 956 words · Jurgen Allewijn

Azure Kubernetes Chronicles: Multi-Cluster Edition

From Fleet to Edge — navigating Kubernetes across clouds and continents When Kubernetes first entered the enterprise, many architects imagined a single, perfect cluster: one hub for all workloads, scalable, resilient, and secure. Reality had other plans. Enterprises today run multiple clusters across regions, providers, and even at the edge: • AKS in Azure for mainline production. • EKS in AWS to meet regulatory or resilience mandates. • k3s clusters on Raspberry Pi or NUCs powering retail stores, factories, and hospitals. ...

September 12, 2025 · 3 min · 487 words · Jurgen Allewijn

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