Name: ⚡ Lightning Talk: Solving Multi-Region K8s Challenges: Improving Pod Startup Time & Reducing NAT Costs With Zot - Tamil Vanan Karuppannan, Arcesium
Start: 2025-08-06T17:02:00+0530
End: 2025-08-06T17:07:00+0530

6-7 August
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Wednesday August 6, 2025 5:02pm - 5:07pm IST

Hall 3

Managing a multi-region Kubernetes deployment comes with significant challenges, especially around container image distribution. In our setup, we had a central container registry in a public cloud, but as the number of clusters grew across regions, our NAT transfer costs skyrocketed— a staggering 10x increase

A major contributor to this cost was cross-region image pulls, which also impacted pod startup times. We explored multiple solutions and found Zot (a CNCF sandbox project) to be an ideal fit due to its lightweight architecture and pull-through cache capabilities

By configuring Zot as a regional caching layer, we:

Reduced NAT data transfer costs significantly by keeping frequently pulled images closer to the clusters.
Improved pod startup times by eliminating long fetch delays from a central registry.
Simplified registry management without adding unnecessary complexity.

Speakers

tamilhce

Principal Engineer, Arcesium

Tamil vanan is a cloud native Tech lead at Arcesium and a former Kubernetes SME at VMware. He is passionate about finding solutions to problems in the cloud native environment. He works with cloud-native technologies like Kubernetes, multi-cloud and networking. He is a passionate... Read More →

Wednesday August 6, 2025 5:02pm - 5:07pm IST
Hall 3

⚡ Lightning Talks, Operations + Performance

Content Experience Level Intermediate

KubeCon + CloudNativeCon India 2025

tamilhce

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