Kubernetes Security with Kyverno | Enforce Policies on Minikube (Hands‑On DevSecOps Lab)
In this hands-on DevOps lab, we implement Kyverno — a Kubernetes-native policy engine — on a local Minikube cluster for the resume-matcher-devops project. This walkthrough demonstrates how Kyverno enforces security, governance, and compliance policies directly at the Kubernetes API server level.
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🔑 What You’ll Learn
✅ Setting up Minikube on Windows 11 Pro with Docker driver
✅ Installing Kyverno via Helm (v1.18.1)
✅ Running baseline pods before policies (privileged containers allowed)
✅ Deploying three critical ClusterPolicies:
1. Restrict Image Registries
2. Disallow Privileged Containers
3. Require Resource Requests & Limits
✅ Testing enforcement with blocked pods and denied admissions
✅ Configuring private GHCR registry with Kubernetes pull secrets
✅ Deploying the resume-matcher app with initContainers and secure image pulls
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🛡️ Key Takeaways
Kyverno integrates as an admission webhook, intercepting pod creation requests.
ClusterPolicies apply across all namespaces for defense-in-depth.
Multiple policies can trigger simultaneously, ensuring strict compliance.
Demonstrates real-world DevSecOps practices: registry control, privilege restriction, and resource governance.
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📂 Project Highlights
Minikube v1.38.1, Kubernetes v1.35.1, Docker v29.2.1
Helm chart v3.8.1 for Kyverno installation
Policies tested against privileged pods, untrusted registries, and missing resource limits
Application image pushed to Docker Hub and GitHub Container Registry (GHCR) with private access
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🖥️ Architecture Flow
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kubectl apply → API Server → Kyverno Admission Webhook
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Evaluate ClusterPolicies
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Allow ✅ or Deny ❌ with reason
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👉 If you’re building a DevSecOps portfolio project, this video is a complete demonstration of Kubernetes security enforcement with Kyverno. Perfect for engineers, students, and professionals exploring policy-driven governance in cloud-native environments.
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