ThreeShake Sponsors CloudNative Days Conference, CFP Accepted, Two Engineers to Speak
ThreeShake Inc. announced its sponsorship as a booth exhibitor and the participation of two of its engineers as speakers at the 'CloudNative Days' conference, held in Nagoya, Aichi Prefecture, on May 14th (Thursday) and 15th (Friday), 2026. The company will showcase services such as SRE/DevOps internalization support and present sessions on container security and Terraform module challenges.
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ThreeShake Inc. (Headquarters: Chuo-ku, Tokyo; President: Takuma Yoshida; hereinafter 'ThreeShake') announced that it will sponsor 'CloudNative Days', a conference to be held in Nagoya, Aichi Prefecture on May 14 (Thursday) and 15 (Friday), 2026, as a booth sponsor, and two of its engineers will also be speaking.
CloudNative Days Official Website: https://kaigi.cloudnativedays.jp/
■ About CloudNative Days
CloudNative, Platform Engineering, SRE──
A place where three technologies intersect, connecting all learning and challenges in a 'line', from young professionals to veterans, and from manufacturing to IT companies.
Overcoming barriers between fields and positions, 'living knowledge' overlaps like three colors, and a new landscape of technology emerges in Nagoya.
Two days where 1000 people gather and envision the future.
(Quote) CloudNative Days Official Website: https://kaigi.cloudnativedays.jp/
■ CloudNative Days Event Overview
・Date and Time: May 14 (Thursday) and May 15 (Friday), 2026, 10:00 - 18:30 each day
・Format: Hybrid event
・Venue: Chunichi Hall & Conference (Chunichi Building 6F, 4-1-1 Sakae, Naka-ku, Nagoya, Aichi 460-0008)
・Admission: Free (pre-registration required)
■ Booth Overview
At the exhibition booth, we will introduce services provided by Sreake, such as 'SRE/DevOps Internalization Support', 'Application Modernization Support', 'AI Utilization Support', and 'Data Modernization Support', with specific examples.
A lottery with novelty prizes will also be held, so please feel free to stop by.
■ Speaker Information
Daiki Hayakawa, Software Engineer, Sreake Division, ThreeShake Inc.
CNCF Ambassador. Joined ThreeShake after experiencing backend development, SRE, and managed Kubernetes service development.
Responsible for Platform Engineering/SRE support for various clients, from startups to large enterprises. Particularly focuses on platform construction and implementation support utilizing Kubernetes, containers, and cloud-native technologies.
Co-author of 'Kubernetes Practical Guide', 'Understanding Kubernetes Container Management from Kubelet', and 'Kube API Server ~ Let's look at the internal implementation of Kubernetes API Server ~'
May 14 (Thursday) 14:30 - 15:00
Peeking Inside Container Images — Mechanisms and Utilization of Provenance, Signatures, and SBOM
https://kaigi.cloudnativedays.jp/sessions/3000/
<Speaker Comment>
I will be presenting under the title 'Peeking Inside Container Images — Mechanisms and Utilization of Provenance, Signatures, and SBOM'.
In this session, I will explain the mechanisms of metadata such as Provenance, Signatures, and SBOM included in container images, and how to use them for secure image operations.
I will demonstrate how to read the internal structure of images, procedures for introducing signatures into CI, and methods for verifying metadata in registries. Please come and watch if you are interested in container security.
Kohei Hayama, SRE, Sreake Division, ThreeShake Inc.
Experienced AWS/GCP Organization management and SRE as a CCoE for advertising and search systems cloud, joined ThreeShake Inc. in December 2025. Provides technical support as an SRE focused on cloud and containers.
His hobby is community activities, participating as an executive committee member since CNDT2023 and volunteering at KubeCon JP, OSSJ, etc.
<Presentation Date and Time>
May 15 (Friday) 16:10 - 16:40
<Title>
Why Terraform Modules Become a 'Labyrinth'
https://kaigi.cloudnativedays.jp/sessions/3003/
<Speaker Comment>
I will be presenting under the title 'Why Terraform Modules Become a 'Labyrinth''.
I will explain the phenomenon where well-intentioned Terraform modules, with numerous variables, complex counts, and intertwined dynamics, turn into an 'unmanageable labyrinth' that no one wants to touch after a few months.
Furthermore, the 3 key factors of becoming a labyrinth.</div>
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