Kintone Engineering Blog

Learn about Kintone's engineering efforts. Kintone is provided by Cybozu Inc., a Tokyo-based public company founded in 1997.

Announcing TopoLVM 0.3 & 0.4

By Banji Inoue (@binoue) We are happy to announce that TopoLVM 0.4.0 is released. TopoLVM is a storage plugin for Kubernetes using LVM. It features dynamic provisioning and capacity-aware scheduling among others. Here is news about the rec…

Production-grade delivery workflow using Argo CD

By Banji Inoue (@binoue), Akihiro Ikezoe(@zoetro) Nowadays, GitOps is widely considered the best methodology for continuous delivery. However, the right way of implementing GitOps for production environments is not widely understood. We br…

Automating Lifecycle Management of Kubernetes Clusters

By Hiroshi Muraoka (@tapih) This article introduces Cybozu Kubernetes Engine(CKE), a certificated Kubernetes Conformance Software by CNCF. CKE is designed to reduce the operations burden for large Kubernetes(k8s) clusters as little as poss…

Introducing a New Local Storage for Kubernetes: TopoLVM

By Kazuhito Matsuda (@kazmaz11) Local storage in Kubernetes means storage devices or filesystems available locally on each node server. This article briefly reviews existing local storage solutions in Kubernetes, then introduces a new stor…

Modular, Pure Layer 3 Network for Kubernetes: The Implementation

By Hirotaka Yamamoto (@ymmt2005) As part of Project Neco, we are building a highly scalable data center network for large Kubernetes clusters. In Modular, Pure Layer 3 Network for Kubernetes: The Design, we described the challenges of buil…

Getting Started with BIRD Routing Software

By Hirotaka Yamamoto (@ymmt2005) This is a supplementary material for Modular, Pure Layer 3 Network for Kubernetes: The Implementation to cover the basics of the BIRD Internet Routing Daemon. Although there is an official user's guide, thi…

A Brief Introduction to BGP for Software Engineers

By Hirotaka Yamamoto (@ymmt2005) This is a supplementary material for Modular, Pure Layer 3 Network for Kubernetes: The Implementation to cover the basics of Border Gateway Protocol (BGP) used inside data centers. The intended readers are …

Modular, Pure Layer 3 Network for Kubernetes: The Design

By Shin'ya Ueoka (@ueokande), Hirotaka Yamamoto (@ymmt2005) As part of Project Neco, we are building a highly scalable data center network for large Kubernetes clusters. This is the first of the series of articles to describe the network i…

Project Neco: Building Cloud Native On-Premise Data Centers

By Hirotaka Yamamoto (@ymmt2005) kintone.com, a low-code application platform service, is branded as cybozu.com in Japan. Today, cybozu.com is used by more than 30,000 customer companies. To provide a reliable and cost-effective service, w…