Security

Kubernetes RBAC: Who Can Do What, and Where?

Jun 3, 2025 · 4 min read · kubernetes learn security

Let’s be honest: giving everyone admin access to your cluster is fast… until it isn’t. Enter RBAC, short for Role-Based Access Control—Kubernetes’ way of saying “hold up, who let you in here?” RBAC defines who can perform what actions on which resources—like a VIP list for your Kubernetes API server. What Is RBAC? RBAC …

Kubernetes Network Policies: Your Cluster’s Traffic Bouncer

May 20, 2025 · 5 min read · kubernetes learn networking security

What Are Network Policies? In Kubernetes, a NetworkPolicy is like a bouncer for your pods. It checks who’s allowed to talk to whom and kicks out anything not on the guest list. By default, Kubernetes is a friendly party where everyone can chat with everyone else—great for sociability, terrible for security. Network …

How to seal and unseal secrets with Bitnami Sealed-Secrets

Mar 14, 2025 · 3 min read · bitnami sealed-secrets security

I decided to push my Kubernetes manifests to GitHub because running Git locally on the same k3s cluster as ArgoCD seemed like asking for trouble. I mean, what happens if something goes wrong? Suddenly, you’re locked out of your repository, and your applications just sit there looking sad, like ‘Hey, I need a home!’ …