Gefyra is an open-source tool for local application development with Kubernetes, developed by Blueshoe GmbH. It builds a network bridge between a developer's local machine and a Kubernetes cluster. Containers run locally while using the cluster's resources, and traffic to selected services can be redirected to the local environment. This removes the build-and-push cycle for every change. According to the vendor, Gefyra works with any Kubernetes cluster, supports debugging from the IDE and needs no changes to existing manifests. It is also available as a Docker Desktop extension, and Blueshoe offers enterprise support.
Blueshoe GmbH is based in Gräfelfing, Germany, and no foreign parent company is named. The source code is in the project's public repository under the Apache 2.0 licence. Gefyra is a tool you install and use with your own clusters; no separate cloud service from the vendor is described. Which data ends up where therefore depends on the cluster and infrastructure you choose yourself, which makes a European set-up straightforward to achieve.