Japan Community Day at KubeCon + CloudNativeCon Japan 2025

Name: Japan Community Day at KubeCon + CloudNativeCon Japan 2025
Start: 2025-06-15T11:00:00+09:00
End: 2025-06-15T21:00:00+09:00

Cloud Native Community Japan

Jun 15, 2:00 AM – 12:00 PM (UTC)

Hybrid event

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About this event

Event OverviewJapan Community Day is set to be a comprehensive and engaging gathering for professionals interested in cloud-native technologies. It will bring together attendees of KubeCon + CloudNativeCon Japan and members of various local meetup communities, Special Interest Groups (SIGs) and Subgroups within CNCJ to foster collaboration, learning, and contribution to the cloud-native ecosystem. The event is structured to offer multiple tracks with multiple themes, each targeting a different aspect of cloud-native development and community involvement.
Sessions on multiple themes are arranged by local communities and SIGs, some of which are accepting CFP submissions. For more details, please refer to the "Additional Information and Call or Speakers for Each Local Community".
The event will be held at the NTT DOCOMO Open Lab in Odaiba, located near the KubeCon+CloudNativeCon Japan venue. This event will take place on the day before the main KubeCon+CloudNativeCon conference.
Taking place on the pre-day of KubeCon+CloudNativeCon Japan, this event offers a unique chance to engage with the cloud-native community before the main conference begins. Participants will be able to network, learn, and collaborate in a vibrant setting, setting the stage for the larger event. The combination of specialized tracks, including talks, training, contributing, and maintainer sessions, along with lunch and networking, ensures that attendees get the most out of their time in Japan and make valuable connections ahead of KubeCon+CloudNativeCon.
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Japan Community Day は、KubeCon + CloudNativeCon Japan の全参加者・国内のさまざまなローカルコミュニティ・Cloud Native Community Japan 内の SIGs やサブグループのメンバーが一堂に会し、クラウドネイティブ・エコシステムの発展に向けた協力、学習、貢献を促進します。
イベントは、複数のトラックとテーマで構成され、それぞれクラウドネイティブ開発やコミュニティ参加の異なる側面に焦点を当てています。
各テーマのセッションはローカルコミュニティやSIGが企画し、一部のセッションでは CFP（Call for Proposal）を受け付けています。詳細については、「各ローカルコミュニティに関する追加情報と Call For Speakers」をご参照ください。
本イベントは、お台場にある docomo R&D OPEN LAB ODAIBA で開催されます。この会場は、KubeCon + CloudNativeCon Japan のメイン会場の近くに位置しており、カンファレンス本番の前日に実施されます。

🕐 TimetableSession Schedule is here.Event Schedule: June 15 (Sunday) - The day before KubeCon
Doors Open: 12:30 PM (Upstream Training starts at 10:30 AM)
Event Start: 1:00 PM (Upstream Training starts at 11:00 AM)
Evening Social Start: 7:00 PM
Event End: 9:00 PM
📝 Registration (Free)Login with your LF Account
Click "RSVP" on your participation type
General Attendees: Select this if you are a general participant / 一般参加者はこちらを選択
Upstream Training Attendees: Select this if you are attending the Upstream Training / Upstream Training に参加する方はこちらを選択
Doc Sprint Attendees: Select this if you are attending the Doc Sprint / Doc Sprint に参加する方はこちらを選択
SIG Sustainability Attendees: Select this if you are attending the SIG Sustainability Discussion / SIG Sustainability の議論に参加する方はこちらを選択
Virtual Attendees: online streaming attendees / オンライン配信視聴者はこちらを選択
Speakers / Organizers / Sponsor / Publishing Staff:  Please select only those who are specified / 指定された方のみ選択してください。
Submit your information for in-person registration.

🏢⚠️ 入館に関する注意Reception for the event will begin at 12:30.
Only invited maintainers and Doc Sprint participants may enter starting from 10:30.
Please note that reception may be understaffed after 1:00 PM, so you may experience a short wait. We appreciate your understanding.
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イベントは12:30から受付を開始します。
事前に招待を受けたメンテナ及びDoc Sprint参加者のみ10:30から入場可能です。
13時以降は受付が手薄になるため、少々お待ちいただく可能性があります。ご了承ください。

🏢 How to Enter the Building / 入館方法1. Please proceed to the entrance gates on the 1st or 2nd floor. / 1階または2階の入館ゲートへお越しください。
Refer to the maps below for the location of each gate / 各ゲートの位置は以下の図をご参照ください:
1st Floor
2nd Floor

2. Please have the QR code that was sent to you via email ready. / 事前にメールで送付されたQRコードをご用意ください。
3. Scan your QR code using the QR code reader installed at the gate. / 入館ゲートに QRコードをかざしてください。
4. Once the gate opens, take the elevator to the 12th floor. / ゲートが開いたら、エレベーターで12階までお越しください。
5. After exiting the elevator on the 12th floor, follow the map below to reach your destination. / 12階でエレベーターを降りましたら、下記マップに沿ってお進みください。

🏢 How to Exit the Building / 退館方法* You may exit from either the 1st or 2nd floor gates. / 1階または2階のいずれのゲートからでも退館が可能です。
* Please scan the same QR code you used for entry at the QR code reader. / 入館時に使用したQRコードを再度ゲートのQRコードリーダーにかざしてください。
* Once the gate opens, proceed through to complete your exit. / ゲートが開いたら、そのまま通過してご退館ください。

📣 Additional Information and Call for Speakers of Each Local Community / 各ローカルコミュニティに関する追加情報と Call for Speakers🤝 Kubernetes Meetup TokyoThe sessions for the Kubernetes Meetup Tokyo are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.
🤝 Platform Engineering Meetup
The sessions for the Platform Engineering Meetup are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.
🤝 eBPF Japan Meetup
The sessions for the eBPF Japan Meetup are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.
🤝 Wasm Japan Meetup
The sessions for the Wasm Japan Meetup are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.
Wasm Japan Meetup のセッションは Organizer によって企画され CFP は実施されません。Organizer から連絡を受けた方は、Sessionize から講演内容を投稿してください。
🤝 OpenTelemetry MeetupThe sessions for the OpenTelemetry Meetup are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.
🤝 Container Runtime Meetup
The sessions for the Container Runtime Meetup are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.
🤝 Cloud Native Security Japan (CNCJ Security Subgroup)
Cloud Native Security Japan will conduct a Call for Papers (CFP). Please submit your proposal via Sessionize according to the guidelines below.
Cloud Native Security Japan のセッションは Call for Papers (CFP) を実施します。Sessionize から講演の提案をを投稿してください。
CFP Closes: Friday, April 25 at 11:59 PM Japan Standard Time (UTC+9)
CFP Notifications: Monday, May 12
Session Duration: 5-15 minutes
🤝 CNCJ SIG-SustainabilityJoin the CNCJ SIG Sustainability for a brainstorming session on cloud-native sustainability, with discussions on how you can contribute your skills to environmental sustainability within the cloud-native community. More details here.
The sessions for the CNCJ SIG-Sustainability are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via  Sessionize.
CNCJ SIG Sustainability に参加して、クラウドネイティブの持続可能性に関するブレインストーミングセッションに参加しませんか？ 環境の持続可能性に向けて、あなたのスキルをどのように活かせるかについて議論します。詳細はこちら。
CNCJ SIG-Sustainability のセッションは Organizer によって企画され CFP は実施されません。Organizer から連絡を受けた方は、Sessionize から講演内容を投稿してください。
🤝 FinOps Foundation Japan ChapterThe sessions for the FinOps Foundation Japan Chapter are planned by the organizers, and a CFP will not be conducted. If you are contacted by an organizer, please submit your session details via Sessionize.

👥 Event OrganizersMasaya Aoyama, Senior Software Engineer, CyberAgent, Inc. (CNCJ, Kubernetes Meetup Tokyo)
Hiroshi Hayakawa, Senior Platform Engineer, LY Corporation (CNCJ)
Kazuto Kusama, Product Evangelist, PagerDuty (Platform Engineering Meetup)
Kenta Tada, Project Manager, Toyota Motor Corporation. (CNCF End User Technical Advisory Board, CNCJ, eBPF Japan Meetup)
Takeru Hayasaka, Senior Software Engineer, BBSakura Networks, Inc. (eBPF Japan Meetup)
Sohei Iwahori, Senior Lead Engineer, GREE, Inc. (eBPF Japan Meetup)
Yoshi Yamaguchi, Senior Developer Advocate, AWS (OpenTelemetry Meetup)
Kazunori Otani, Senior Solutions Architect, Observability, Splunk (OpenTelemetry Meetup)
Yoshiyuki Tabata, Senior OSS Consultant, Hitachi, Ltd. (CNCJ, Cloud Native Security Japan)
Toru Komatsu, Engineer, Preferred Networks, Inc. (CNCJ, Cloud Native Security Japan)
Hiroyuki Wada, Chief Expert, Nomura Research Institute, Ltd. (Cloud Native Security Japan)
Yoshikazu Nojima, Senior Technical Support Engineer, Red Hat (Cloud Native Security Japan)
Hiroshi Aida, Group Manager, Nomura Research Institute, Ltd. (Cloud Native Security Japan)
Munehiro Ikeda, Lead Architect, Cybertrust Japan Co. Ltd. (Cloud Native Security Japan, OpenSSF Japan)
Shu Muto, Open Source Strategy Professional, NEC Solution Innovators, Ltd. (CNCJ, Kubernetes Upstream Training Japan)
Sunyanan Choochotkaew, Staff Research Scientist, IBM Research (CNCJ,  Cloud Native Sustainability Japan)
Nao Nishijima, Chief Researcher, Hitachi, Ltd. (CNCJ, Cloud Native Sustainability Japan)
Kenji Tagashira, Senior Manager, Fsas Technologies Inc. (CNCJ,  Cloud Native Sustainability Japan)
Scott Trent, Staff Research Scientist, IBM Research (Cloud Native Sustainability Japan)
Tatsuhiro Chiba, Senior Technical Staff Member, Manager, IBM Research (Cloud Native Sustainability Japan)
Yasumasa Suenaga, Technical Lead, NTT DATA (Cloud Native Sustainability Japan)
Takuya Iwatsuka, Senior Research Engineer, NTT Software Innovation Center (Cloud Native Sustainability Japan)
Damien Roux, Senior Specialist, NTT DATA (Cloud Native Sustainability Japan)
Bahung Nguyen, Researcher, Hitachi Ltd. (Cloud Native Sustainability Japan)
Makoto Kobara, Senior Solutions Architect, NetApp (FinOps Foundation Japan Chapter)
Kohei Ota, Senior Software Engineer, Apple (Container Runtime Meetup)
Kohei Tokunaga, Software Engineer, NTT (Container Runtime Meetup)
Akihiro Suda, Software Engineer, NTT (Container Runtime Meetup)

Contactcncj@googlegroups.com

When

Sunday, June 15, 2025
2:00 AM – 12:00 PM (UTC)

Where

docomo R＆D OPEN LAB ODAIBA
135-0091
港区, 135-0091

Agenda

Doors Open（開場）
4:00 AM	Opening - Welcome to Japan Community Day and Japan!	Masaya Aoyama Senior Software Engineer, CyberAgent
4:10 AM	[Keynote] Existential risks to Kubernetes	Kubernetes has been undeniably successful over the last 10 years. That said, the world is changing. The things that made us successful will not keep us successful. In this talk, I will look at a few of the things that I think could be existential risks to Kubernetes over the next couple of years. --- Tim Hockin Distinguished Engineer, Google Tim has spent most of his career at Google, where he works on Kubernetes and Google Kubernetes Engine (GKE). He is one of the technical leads of the Kubernetes project, and has been part of it since before it was publicly announced. He mostly pays attention to topics like APIs, networking, storage, nodes, multi-cluster, resource isolation, and cluster sharing.
4:25 AM	break（休憩）
4:30 AM	The Past, the Present, and the Future of Platform Engineering	Do you think platform engineering is too hard? Or is it just a buzzword? Is the CNCF landscape too tricky to visualize? If you’ve been in this industry long enough, you should know that platform engineering has been around for a long time. Most of us have been trying to build developer platforms for decades, and most of us have failed at that. That begs the questions: “What is different now?” “Why will this time be different?” and “Do we have a chance to succeed?” We’ll take a look at the past, the present, and the future of platform engineering. We’ll see what we were doing in the past, what we did wrong, and why we failed. Further on, we’ll see what we (the industry as a whole) are doing now and, more importantly, where we might go from here. Get ready for the hard truths and challenges you will face when trying to build a platform based on Kubernetes. Join us for a pain-infused journey filled with challenges teams will face when building platforms to enable other teams. --- Viktor Farcic Developer Advocate Viktor Farcic is a lead rapscallion at Upbound, a member of the CNCF Ambassadors, Google Developer Experts, CDF Ambassadors, and GitHub Stars groups, and a published author. He is a host of the YouTube channel DevOps Toolkit and a co-host of DevOps Paradox. --- Mauricio "Salaboy" Salatino OSS Software Engineer @Diagrid for the @Daprdev Project Mauricio works as an Open Source Software Engineer at @Diagrid, contributing to and driving initiatives for the Dapr OSS project. Mauricio also serves as a Steering Committee member for the Knative Project and Co-Leading the Knative Functions initiative. He published a book titled Platform Engineering on Kubernetes for Manning Publishing and previously worked at VMware and Red Hat, building tools to help developers be more productive.
5:00 AM	Break and book signing (Platform Engineering on Kubernetes)
5:15 AM	[Panel Discussion] From Vision to Reality: How Companies Are Using eBPF Today	TBA --- Kenta Tada Toyota Motor Corporation, Project Manager Shung-Hsi Yu Kernel Engineer at SUSE working on BPF Takeru Hayasaka BBSakura Networks.Inc, Senior Software Engineer
5:45 AM	Break and book signing (Platform Engineering on Kubernetes)
6:00 AM	Strengthening Kubernetes Security with Fine-grained SupplementalGroups Control	This session explores the security enhancement KEP-3619: "Fine-grained SupplementalGroups Control" graduated to beta in Kubernetes v1.33. This KEP addresses the previous mysterious behavior of managing supplementary groups, which could introduce security risks in accessing volumes. The feature enables more precise control over supplementary groups, strengthening the declarativeness of Pod configurations. Additionally, it enhances the transparency of UID/GID details through Pod manifests, offering improved oversight of security settings. Attendees will learn how these advancements can simplify and strengthen their security strategy regarding supplementary groups management. --- Shingo Omura Senior Software Engineer Shingo Omura is an AI/ML platforms engineer on large heterogeneous GPU Kubernetes clusters in LY Corporation. He has contributed to multiple SIGs, including sig-scheduling and sig-node. He has recently been involved in KEP-3619: "Fined-grained SupplementalGroups control" and KEP-5055: "DRA: device taints and tolerations." He also regularly contributes to the Kubernetes Japanese community, sharing technical information and insights.
6:30 AM	break（休憩）
6:35 AM	Thwart nation-state attacks and harden application runtimes with Tetragon	Concerned by the evolving threat landscape? Frustrated by the number of different tools required for runtime security? This session explores in detail how Tetragon, powered by eBPF, can observe and enforce network and application runtime behaviours. This allows Tetragon to observe and enforce application and runtime attack vectors. Learn how to build out an operating system hardening policy, observe and mitigate vulnerabilities discovered in running workloads with compensating controls and combine it all to protect workloads from nation-state threats such as BPFdoor or xz/liblzma. This practical, detailed, and extensive session will give you a strong head start in protecting your workloads from the core of your application runtimes wherever they may run thanks to the power of eBPF. --- Anthony Burke Field CTO Burkey has been involved in the open source community around infrastructure and networking for over 15 years. He currently serving as Field CTO - APJC at Isovalent helping customers adopt and solve with networking, security, and runtime challenges with Cilium and Tetragon. Having tenures previously at HashiCorp and VMware, Burkey has been exposed to the rise of software networking, the adoption of infrastructure as code, and now the reimagining of it all in the eBPF era powered by Isovalent.
7:05 AM	Break and book signing (Practical OpenTelemetry)
7:20 AM	Troubleshooting the OpenTelemetry Collector	In this session, you'll learn how to troubleshoot the OpenTelemetry Collector. From validating YAML configuration to enabling debug logging and visualizing your data pipelines, learn how to avoid common problems and how to get more data so you can deploy OpenTelemetry faster. You'll also see examples of zpages and OTelBin - two tools that can make Collector configuration and troubleshooting much easier. --- Greg Leffler Director, Developer Evangelism at Splunk Greg Leffler heads the Observability Developer Evangelism team at Splunk, a Cisco company, and is on a mission to spread the good word of Observability to the world. Greg's career has taken him from the NOC to SRE, from SRE to management, with side stops in security and editorial functions at companies including eBay and LinkedIn. In addition to Observability, Greg's professional interests include hiring, training, SRE culture and operating effective remote teams. Greg holds a Master's Degree in Industrial/Organizational Psychology from Old Dominion University
7:50 AM	Break and book signing (Practical OpenTelemetry)
8:05 AM	Trusted Sidecars (or Digital Twins) by Caleb McGary of Woven by Toyota	In the vehicle world we have a variety of secrets that exist on disk that often need to be managed carefully. This problem is not unique to vehicles, many client devices such as phones, gaming consoles, and other types of small devices often need to maintain a secret sync between the cloud and the device. This talk will cover strategies for having an effective sidecar in the cloud, how to maintain synchronization with the client devices, and usefulness of said sidecars. (Some) Technical Details: First, an explanation of sidecars will be given. This will include a look at embedded capabilities such as attestation that is available from some trusted execution environment operating systems such as OpTEE and QTEE. This embedded capability enables secure communication with the cloud and a trusted sidecar via the use of key wrapping technologies. Next the talk will examine a few different options for security sidecars or digital twins in the cloud • Kubernetes pods • AWS Nitro • Azure Confidential Compute These options will be explained in detail, some advantages and disadvantages of each one and how they would integrate in with a proper side car solution. Further exploration into the IOT defensive strategies of the major cloud vendors will also be briefly touched on (such as AWS IOT Device Defender). An end to end scenario of why a sidecar should be used and how when implemented properly will be shown from an embedded device. Potential threats, weaknesses and challenges will be shared. --- Ryu Ishimoto Director of Ecosystem Development at Midokura, Japan A former software developer of Software Defined Networking(SDN) for open source projects such as OpenStack, Ryu Ishimoto is currently the Director of Ecosystem Development of Midokura Japan, a subsidiary of Sony Semiconductor Solutions. He is responsible for building an ecosystem around the core technologies of AITRIOS, a cutting-edge platform enabling easy building of sensing solutions spanning edge and cloud. Before this role, he was the manager of the R&D team that was developing Midonet, an overlay-based virtual networking solution for IaaS. Prior to Midokura, he worked for several tech start-up companies as well as big financial companies in both the US and Japan, developing a wide range of software products, including trading systems, e-commerce services and an ad server platform. He has a Master of Science degree in Computer Science from University of California, Los Angeles.
8:35 AM	Break and book signing (認証と認可 Keycloak入門)
8:50 AM	AILERON Gateway in 5 Minutes : Lightweight AuthN/Z Reverse Proxy for Cloud-Native & On-Premise [arranged by "Cloud Native Security Japan"]	We have developed AILERON Gateway, a small-footprint, open-source reverse proxy designed to expand OAuth2 and OIDC client options in both Kubernetes clusters and traditional on-premises environments. A single binary and one YAML file provide: • AuthN & AuthZ client features (OIDC/OAuth2 and FAPI) • Authorization hooks for Casbin and OPA • Basic web security—CORS, CSRF • Traffic controls—rate limiting and round-robin load balancing https://github.com/aileron-gateway/aileron-gateway https://aileron-gateway.github.io/docs/concepts/ In this five-minute session we’ll cover: • Why we built it—gaps we hit with existing AuthN/AuthZ clients such as mod_auth_oidc and OAuth2-Proxy • What it means for you—sample use cases and configuration snippets • What’s next—the project roadmap --- Wataru Okuura Nomura Research Institute, Ltd. For the past several years, I have been building and deploying authentication, authorization, and identity-management solutions. Recently, I have been giving back to the community by co-authoring a book on Keycloak and maintaining open-source projects for authentication and authorization.
8:55 AM	ELI5: Describe the graduated CNCF security projects [arranged by "Cloud Native Security Japan"]	This session will use simple and understandable analogies to explain the basic goals and properties of the graduated CNCF security projects: TUF, in-toto, SPIFFE, Cert-manager, OPA, and Falco. The goal will be to build a basic understanding of each project so attendees can understand if they want to dig further. For example, in-toto is like an inspector that takes pictures (in-toto attestations) of what is happening as software is made. You can also tell it what the pictures (via an in-toto policy) should look like so that if something went wrong, bad software isn't produced. This makes it so the factory makes the software we expect even if there are bad guys trying to mess it up. I plan to have this be a very visual talk and say the simple descriptions in both English and Japanese as a way to test whether I really can use simple enough phrases and words. --- Justin Cappos NYU, TAG Security Tech Lead, TUF / in-toto maintainer I am a professor at NYU who has been working on software supply chain security for more than 20 years. I am a maintainer / creator of the TUF, Uptane, SBOMit, gittuf, and in-toto projects, which are all under the LF.
9:20 AM	Break and book signing (認証と認可 Keycloak入門)
9:25 AM	Overview of containerd	containerd is a CNCF-graduated container runtime project. In this session, Kohei, a reviewer of containerd, will provide an overview of the project, including how it's used by tools like Docker, Kubernetes and other tools through its API. He'll also cover its extensibility via the plugin system, such as the faster pulling of images by "lazy pulling" with Stargz Snapshotter plugin. --- Kohei Tokunaga Software Engineer at NTT Kohei Tokunaga is a software engineer at NTT Corporation, a Japan-based telecommunication company. He is a reviewer of CNCF containerd and a maintainer of BuildKit. He has talked about topics around container runtimes and builders at Open Source Summit, FOSDEM and KubeCon+CloudNativeCon as well as has organized container-runtime-focused meetup Container Runtime Meetup in Tokyo.
9:55 AM	break（休憩）
10:00 AM	Evening Reception Sponsored by AP Communications and Nutanix
12:00 PM	Closing

CONTACT US

Japan Community Day at KubeCon + CloudNativeCon Japan 2025

Cloud Native Community Japan

About this event

Event Overview

🕐 Timetable

Session Schedule is here.

📝 Registration (Free)

🏢⚠️ 入館に関する注意

🏢 How to Enter the Building / 入館方法

🏢 How to Exit the Building / 退館方法

📣 Additional Information and Call for Speakers of Each Local Community / 各ローカルコミュニティに関する追加情報と Call for Speakers

🤝 Kubernetes Meetup Tokyo

🤝 OpenTelemetry Meetup

🤝 CNCJ SIG-Sustainability

🤝 FinOps Foundation Japan Chapter

👥 Event Organizers

Contact

When

Where

Agenda

株式会社NTTドコモ

ニュータニックス・ジャパン合同会社

株式会社エーピーコミュニケーションズ

Japan Community Day at KubeCon + CloudNativeCon Japan 2025

Cloud Native Community Japan

About this event

Event Overview

🕐 Timetable

Session Schedule is here.

📝 Registration (Free)

🏢⚠️ 入館に関する注意

🏢 How to Enter the Building / 入館方法

🏢 How to Exit the Building / 退館方法

📣 Additional Information and Call for Speakers of Each Local Community / 各ローカルコミュニティに関する追加情報と Call for Speakers

🤝 Kubernetes Meetup Tokyo

🤝 OpenTelemetry Meetup

🤝 CNCJ SIG-Sustainability

🤝 FinOps Foundation Japan Chapter

👥 Event Organizers

Contact

When

Where

Agenda

Venue

株式会社NTTドコモ

Platinum

ニュータニックス・ジャパン合同会社

株式会社 エーピーコミュニケーションズ

株式会社エーピーコミュニケーションズ