AdvancedTechnical
5 min
Designing a Multi-Cluster Kubernetes Strategy
KubernetesCloud ArchitectureScalability
Advertisement
Interview Question
Describe how you would design a Kubernetes architecture for multi-region high availability and low latency.
Key Points to Cover
- Differentiate between active-active vs active-passive cluster strategies
- Use global load balancing with failover routing policies
- Leverage multi-cluster ingress controllers for routing
- Synchronize secrets and configs securely across clusters
- Implement cross-cluster service discovery and monitoring
Evaluation Rubric
Ensures regional high availability30% weight
Minimizes latency with optimal routing30% weight
Handles cross-cluster configs/secrets safely20% weight
Implements global observability20% weight
Hints
- 💡Think DNS failover, cluster federation, and external-dns.
Common Pitfalls to Avoid
- ⚠️Underestimating the complexity of stateful data synchronization across regions.
- ⚠️Insufficiently granular health checks leading to incorrect failover decisions.
- ⚠️Poorly configured global load balancing that doesn't account for regional network conditions.
- ⚠️Neglecting network latency implications for inter-service communication across regions.
- ⚠️Over-reliance on a single region for critical control plane components, negating multi-region benefits.
Potential Follow-up Questions
- ❓How do you handle regional failovers?
- ❓Which monitoring stack would you choose?
Advertisement