Kubernetes
Kubernetes clusters don't fail loudly. Misconfigurations accumulate quietly, security gaps go unnoticed, and complexity compounds before anyone maps it. The k8s Beacon cuts through the noise.
What we cover
Every article on The k8s Beacon focuses on one thing: understanding and operating Kubernetes well.
RBAC, network policies, pod security standards, image scanning, runtime threat detection, and supply chain integrity.
1 articleKubernetes-wide guidance on configuration, architecture, operations, and the decisions that separate clusters that work from clusters that age well.
1 articleHow the control plane works, scheduler deep-dives, etcd, admission controllers, and the machinery most operators never see.
1 articleCNI plugins, service meshes, ingress controllers, DNS behaviour, and debugging connectivity when things go silent.
1 articleCrashLoopBackOff, OOMKilled, pending pods, evictions — systematic diagnosis for the failures every team eventually hits.
3 articlesLatest
When Kubernetes returns a Forbidden error, the message already contains the full diagnosis. This article shows how to read RBAC errors precisely, confirm the ServiceAccount responsible, and grant the minimum permission needed to fix it — without reaching for cluster-admin.
Read article →Kubernetes events are one of the most underused diagnostic tools. This article gives you a systematic method for reading and filtering events—not an answer to one specific problem, but a repeatable process you can apply to any incident.
Read article →When a pod is stuck in Pending, the cause is usually one of five things. This decision tree helps you diagnose the problem systematically, with kubectl commands at each step.
Read article →The scheduler is a two-phase machine: filter nodes that can't run the pod, score nodes that can, pick the highest scorer. Understanding this matters when pods end up in unexpected places.
Read article →PDBs protect your workloads during voluntary disruptions like node drains and cluster upgrades. Most teams discover them when a drain gets stuck—here's how to get them right before that happens.
Read article →RBAC sprawl accumulates invisibly. This one-hour audit methodology helps you find cluster-admin bindings, wildcards, and default service account permissions that shouldn't exist.
Read article →The Gateway API is the recommended way to route traffic into your cluster in 2026. This article explains what it is, why it is the evolution of Ingress, and how to think about migration — including the community Ingress-NGINX retirement that makes the decision urgent for some clusters.
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