KubeCon + CloudNativeCon Japan 2025: Full Schedule

16-17 June
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Please note: This schedule is automatically displayed in Japan Standard Time (UTC+9:00). To see the schedule in your preferred timezone, please select from the drop-down menu to the right, above "Filter by Date." The schedule is subject to change and session seating is available on a first-come, first-served basis.

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11:30 JST

Should Our Project Join the CNCF? - Lenka Bočincová, Red Hat

Tuesday June 17, 2025 11:30 - 12:00 JST

Level 1 | Pegasus B2-C

Got an open source project? Considering submitting it to the CNCF (or another foundation)? Whether and when to do this is one of the biggest decisions you'll make in the life of your project. Joining a foundation changes things fundamentally, and whether or not this is a good decision is going to depend on where you are in your project's development and what your goals for the project currently are.

As a community architect in the Red Hat Open Source Program Office, I help projects with this decision. During this talk, I will share common things that projects need to consider before they make this important decision. I will also talk about common benefits and challenges that projects usually experience. After this talk you should have a better understanding of whether you should contribute the project to CNCF or not.

Speakers

Lenka Bocincova

Community architect, OSPO, Red Hat

I am a community architect at Red Hat, Open Source Program Office, where I work with open source projects related to Red Hat cloud native technologies and help them grow their communities. I enjoy a good cup of coffee and exploring cities on a bicycle :)

Tuesday June 17, 2025 11:30 - 12:00 JST
Level 1 | Pegasus B2-C

Cloud Native Experience

Content Experience Level Beginner
Presentation Language English

14:10 JST

Full Lifecycle API Management in Kubernetes With Envoy and WebAssembly - Brandon Kang, Akamai Technologies & Mostafa Radwan, Datadog

Tuesday June 17, 2025 14:10 - 14:40 JST

Level 1 | Pegasus B2-C

As cloud-native applications accelerate in complexity, managing APIs end to end is a top priority. This session introduces a next-generation, Kubernetes-native approach using Envoy Proxy and WebAssembly (Wasm) for dynamic, high-performance traffic control.

We’ll show how Wasm powers real-time policy enforcement, AI-assisted traffic analysis, and advanced rate limiting—without rebuilding Envoy. Attendees will learn how to implement Zero Trust principles, secure multi-tenant API gateways, and deliver external routes with minimal overhead.

Observability enhancements using eBPF and OpenTelemetry will demonstrate how to align trace data with runtime metrics for deeper insights. Finally, we’ll discuss developer onboarding, version governance, and lifecycle management to ensure long-term API success.

A live demo will illustrate ephemeral testing environments, rapid iteration, and how to achieve a future-proof, high-throughput API management layer in Kubernetes.

Speakers

Mostafa Radwan

Senior Solutions Engineer, Datadog

Mostafa is a technologist and consultant specializing in cloud native computing. He started his career as a software engineer before getting into the trenches of application and production support. He enjoys helping enterprise companies successfully adopt DevOps and cloud-native technologies... Read More →

Brandon Kang

Principal Technical Solutions Architect, Akamai Technologies

Brandon Kang is a Principal Technical Solutions Architect at Akamai Technologies, specializing in cloud-native projects across Asia as a compute specialist.Before joining Akamai, he served as a Lead Software Engineer at Samsung, a Senior Program Manager at Microsoft, and a Service... Read More →

Tuesday June 17, 2025 14:10 - 14:40 JST
Level 1 | Pegasus B2-C

Application Development

Content Experience Level Beginner
Presentation Language English

14:50 JST

Debugging OpenTelemetry: Ensuring Your Observability Signals Are Spot On - Kasper Borg Nissen, Dash0

Tuesday June 17, 2025 14:50 - 15:20 JST

Level 1 | Orion

OpenTelemetry has become the go-to framework for unifying observability signals across metrics, logs, and traces. However, implementing OpenTelemetry often comes with its own set of challenges: broken instrumentation, missing signals, and misaligned semantic conventions that undermine its effectiveness. Debugging these issues can be daunting, leaving teams stuck with incomplete or unreliable observability data.

In this session, Kasper will demystify the debugging process for OpenTelemetry. Attendees will learn how to identify and troubleshoot common issues, ensure signals are transferred correctly, and align instrumentation with semantic conventions for consistent insights. Through live demos, Kasper will showcase techniques for validating resource configurations, debugging signal pipelines, and building confidence in your observability setup. This session is designed for anyone looking to unlock the full potential of OpenTelemetry and create robust observability practices.

Speakers

Kasper Borg Nissen

Developer Relations, Dash0

Kasper is a Co-Chair for KubeCon+CloudNativeCon EU/NA, Kubestronaut, CNCF Ambassador, and co-founder of the Nordic meetup alliances, Cloud Native Nordics, where he also serves as Community Lead. He works in Developer Relations at Dash0, previously Lunar where he and his team built... Read More →

Tuesday June 17, 2025 14:50 - 15:20 JST
Level 1 | Orion

Observability

Content Experience Level Beginner
Presentation Language English

15:50 JST

The Future of Prometheus Exposition Format - Arthur Sens, Grafana Labs

Tuesday June 17, 2025 15:50 - 16:20 JST

Level 1 | Pegasus A-B1

OpenMetrics (OM) had a wild journey: it started as a project to standardize the Prometheus exposition format, and it became an entirely separate CNCF Incubating project. Even though the project had high maturity, it struggled for years to find tools to comply with the first version of the spec. Finally, in 2025, it was incorporated back into the Prometheus Github organization so Prometheus developers could lead the efforts for OM 2.0.

In this talk, Arthur, a Prometheus maintainer and OpenMetrics contributor, will walk you through the main challenges that tools like Prometheus and OpenTelemetry face when trying to comply with OpenMetrics 1.0 and how the community plans to address these challenges in OM 2.0.

The audience will also learn how changing an exposition format can make Prometheus and OpenTelemetry-Collector more memory-efficient while making their specifications easier to translate into each other!

Speakers

Arthur Silva Sens

Senior Software Engineer, Grafana Labs

Arthur Sens is a Software Engineer at Grafana, focusing on Prometheus and OpenTelemetry interoperability. He is also an active member and maintainer for both communities. The only things that can take Arthur away from the computer are his passion for lifting unnecessarily heavy... Read More →

Tuesday June 17, 2025 15:50 - 16:20 JST
Level 1 | Pegasus A-B1

Observability

Content Experience Level Beginner
Presentation Language English