Name: From Region To Multi-AZ: Building Resilient Cloud Infrastructure With OpenStack, Kubernetes, and OVN - 승진 한, kt cloud
Start: 2026-08-11T15:55:00+0900
End: 2026-08-11T16:25:00+0900

11-12, August 2026
Seoul, South Korea
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Note: The schedule is subject to change.

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From Region To Multi-AZ: Building Resilient Cloud Infrastructure With OpenStack, Kubernetes, and OVN - 승진 한, kt cloud

Tuesday August 11, 2026 15:55 - 16:25 KST

Orchid 2

As cloud service providers evolve their infrastructure, Multi-AZ architecture becomes essential for service continuity, failure isolation, and operational resilience. However, building a Multi-AZ cloud with open source technologies is not simply about spreading components across data centers. It requires design decisions across compute, networking, storage, observability, automation, and failure validation.

This session shares a CSP’s journey from a region-centric architecture toward a Multi-AZ cloud model using open source technologies such as OpenStack, Kubernetes, OVN, Kube-OVN, OpenStack-Helm, Cluster API, Ceph, and cloud native observability tools.

The talk will cover regional versus AZ-local service design, OpenStack control plane deployment on Kubernetes, zone-aware networking, storage replication, image availability, observability, and DR validation. It will also discuss trade-offs in traffic locality, failover behavior, data consistency, and complexity.

Rather than presenting a vendor-specific platform, this session focuses on reusable architecture patterns and lessons for cloud operators who want to build resilient open cloud infrastructure with open source software.

Speakers

John Haan

cloud engineer, kt cloud

John Haan is a cloud platform engineering leader at kt cloud, focusing on open source-based cloud infrastructure, OpenStack, Kubernetes, and cloud native operations. His work includes OpenStack-on-Kubernetes architecture, Multi-AZ cloud design, automation, observability, and resilient... Read More →

Tuesday August 11, 2026 15:55 - 16:25 KST
Orchid 2

Cloud + Orchestration

Open Source Summit Korea 2026

John Haan

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