Gardener Extensions Library ​

Project Gardener implements the automated management and operation of Kubernetes clusters as a service. Its main principle is to leverage Kubernetes concepts for all of its tasks.
Recently, most of the vendor specific logic has been developed in-tree. However, the project has grown to a size where it is very hard to extend, maintain, and test. With GEP-0001 we have proposed how the architecture can be changed in a way to support external controllers that contain their very own vendor specifics. This way, we can keep Gardener core clean and independent.
This directory contains utilities functions and common libraries meant to ease writing the actual extension controllers. Please consult https://github.com/gardener/gardener/tree/master/docs/extensions to get more information about the extension contracts.
Known Extension Implementations ​
Check out these repositories for implementations of the Gardener Extension contracts:
Infrastructure Provider ​
Primary DNS Provider ​
The primary DNS provider manages DNSRecord resources (mandatory for Gardener related DNS records)
Operating System ​
Container Runtime ​
Network Plugin ​
Generic Extensions ​
- Minimal Working Example
- ACL
- Image Rewriter
- Registry Cache
- Shoot Certificate Service
- Shoot DNS Service
- Shoot Falco Service
- Shoot Flux Service
- Shoot Lakom Service
- Shoot Networking Filter
- Shoot Networking Problem Detector
- Shoot OpenID Connect Service
- Shoot Rsyslog Relp
Others ​
If you implemented a new extension, please feel free to add it to this list!
Feedback and Support ​
Feedback and contributions are always welcome. Please report bugs or suggestions as GitHub issues or reach out on Slack (join the workspace here).
Learn more! ​
Please find further resources about out project here: