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4.1.2. Azure Kubernetes Service (AKS) Security
💡 First Principle: AKS security operates at multiple layers: cluster infrastructure, network, and workload. Each layer requires specific security configurations.
Scenario: You're deploying a production AKS cluster that needs network isolation, secure authentication, and proper image management.
AKS Security Layers
| Layer | Security Controls |
|---|---|
| Cluster Infrastructure | Private cluster, authorized IP ranges |
| Network | Network policies, Azure CNI, private endpoint |
| Authentication | Microsoft Entra integration, RBAC |
| Workload | Pod security, network policies |
| Images | ACR authentication, image scanning |
AKS Authentication Options
- Local accounts: Kubernetes-native (less secure)
- Microsoft Entra ID: Enterprise identity integration
- Managed Identity: For AKS to access Azure resources
⚠️ Exam Trap: Not disabling local accounts when using Microsoft Entra integration. Local accounts bypass Entra ID authentication—disable them for production clusters.
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Written byAlvin Varughese
Founder•18 professional certifications