Secure Multi-Team Kubernetes Access with Tailscale

Introduction You are an administrator of a large Kubernetes cluster shared by many teams. You want to grant each team access only to the resources they are permitted to use. In this guide, I’ll show you how to configure permissions with Tailscale and secure your Kubernetes API so you can provide access without exposing your … Read more

Auditing a Real-World Cluster: Every Misconfiguration I Found in 1 Hour with Open Source Tools

I was given read access to a mid-sized production Kubernetes cluster — 3 namespaces, ~40 workloads, running on EKS. No insider knowledge. Just tools, curiosity, and 60 minutes. Here’s everything I found. The Setup The cluster belonged to a startup that had been running Kubernetes in production for about 18 months. They had a dedicated … Read more

Kubernetes RBAC: A Complete Guide With Concepts, YAML Examples, and Best Practices

Role‑Based Access Control (RBAC) is one of the most critical security layers in any Kubernetes cluster because it decides who can perform which actions on which resources. In many organizations, RBAC is the difference between “one compromised account destroys the cluster” and “blast radius is limited to a small, controlled scope.” This blog will take … Read more