Design a Kubernetes Security Posture Manager
Last updated: December 9, 2025
Quick Overview
Design a system that continuously monitors Kubernetes clusters for security misconfigurations, vulnerable workloads, and policy violations across managed and self-hosted clusters.
Wiz
December 9, 20259
3
4,488 solved
Design a system that continuously monitors Kubernetes clusters for security misconfigurations, vulnerable workloads, and policy violations across managed and self-hosted clusters.
Kubernetes introduces a complex layer of security challenges on top of cloud infrastructure. The system must understand Kubernetes-specific concepts (pods, services, RBAC, network policies, admission controllers) and assess their security posture. It should integrate with the broader cloud Security Graph to show how K8s risks connect to cloud-level risks.
What the Interviewer Expects
- Design an agentless approach to monitoring Kubernetes security
- Cover key K8s security domains: RBAC, network policies, pod security, image security
- Integrate K8s findings with the cloud Security Graph
- Handle managed (EKS, AKS, GKE) and self-hosted clusters
- Support continuous monitoring and point-in-time assessments
Key Topics to Cover
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
Possible Follow-up Questions
- How would you detect lateral movement risk within a Kubernetes cluster?
- How do you handle Kubernetes RBAC analysis at scale across hundreds of clusters?
- What is the tradeoff between agentless K8s monitoring and agent-based approaches?
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Practice System Design ProblemsSample Answer
Requirements
- Functional Requirements:
- Continuously monitor Kubernetes clusters for security misconfigurations.
- Identify vulnerable workloads and policy violations.
- Support both managed (EKS...
Capacity Estimation
Assuming Wiz manages security for 10,000 Kubernetes clusters, each cluster has an average of 50 nodes, and each node runs about 10 pods:
- Total Pods = 10,000 clusters * 50 nodes/cluster * 10 pods...
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