README.md

Calico Route Reflector Operator

This project is work in progress !!!

Use your own risk !!!

Proposal documentation found here: https://github.com/mhmxs/calico-route-reflector-operator-proposal. Please feel free to share your ideas!!!

This Kubernetes operator can monitor and scale Calico route refloctor pods based on cluster size. The operator has a few environment variable:

• ROUTE_REFLECTOR_MIN Minimum number of route reflector pods per zone, default 3
• ROUTE_REFLECTOR_MAX Maximum number of route reflector pods per zone, default 25
• ROUTE_REFLECTOR_RATIO Node / route reflector pod ratio, default 0.005 (1000 * 0.005 = 5)
• ROUTE_REFLECTOR_NODE_LABEL Node label of the route reflector nodes, default calico-route-reflector=
• ROUTE_REFLECTOR_ZONE_LABEL Node label of the zone, default ``

During the api/core/v1/Node reconcile phases it calculates the right number of route refloctor nodes per zone. It by multiply the number of nodes with the given ratio and updates the route reflector replicas to the expected number.

Usage

This is a standard Kubebuilder opertor so building and deploying process is similar as a (stock Kubebuilder project)[https://book.kubebuilder.io/cronjob-tutorial/running.html].

Use official image: make install deploy

Build your own image: IMG_REPO=[IMG_REPO] IMG_NAME=[IMG_NAME] IMG_VERSION=[IMG_VERSION] make test docker-push install deploy

Roadmap

• Use custom resource instead of environment variables
• Dedicated or preferred node label
• Disallow node label
• Handle taints and tolerations

Contributing

We appreciate your help!

To contribute, please read our contribution guidelines: CONTRIBUTION.md