TP-Link Kasa Lights Operator

I wanted to learn how to create my own Kubernetes operator using Python, so I wrote a simple example using KOPF. https://kopf.readthedocs.io/en/stable/

The controller uses the python-kasa python library to interact with TP-Link Kasa Plugs and Bulbs based on the desired state of the KasaLight custom resources. https://github.com/python-kasa/python-kasa

Installation

Install the Custom Resource Definition (CRD) with kubectl apply -f crd/crd.yml. This will configure the KasaLight object type in Kubernetes.

We then need to create the controller that will watch for updates to this object type as well as the RBAC objects to give the container permissions to watch for new objects and emit events. To do this, run kubectl apply -f deployment.yml

Usage

Once these are created and running, we can apply a KasaLight manifest with a desired IP, state (on/off), and type (plug/bulb). Once you have added the right values here, run kubectl apply -f example/example.yml and it should adjust the state of the light.

Note: The state value needs to be in quotes because YAML translates on/off to boolean.