stuartleeks / virtual-kubelet-web-mock-python

Mock API for the Virtual Kubelet web provider written in Python

Virtual Kubelet Web Provider Python Mock Implementation

This project is a sample API implementation for the Virtual Kubelet web provider written in Python

This API simply stores the a list of the pods that it has been requested to create, marks them as started and serves up their status

+----------------+         +---------------------------+          +------------------------------+
|                |         |                           |   HTTP   |                              |
|   Kubernetes   | <-----> |   Virtual Kubelet: Web    | <------> |   This sample/mock API       |
|                |         |                           |          |                              |
+----------------+         +---------------------------+          +------------------------------+

Running locally for development

To run the API locally, run flask run --host 0.0.0.0 --port 3000

Connecting the API with Virtual Kubelet locally

To connect Virtual Kubelet to the API, set the WEB_ENDPOINT_URL environment variable to http://localhost:3000/ (or whatever you have exposed the API as)

export WEB_ENDPOINT_URL=http://localhost:3000/

Then run virtual-kubelet with the --provider web switch. This will run Virtual Kubelet on your local machine. It will connect to Kubernetes based on the kubectl config, and connect to the API defined in the WEB_ENDPOINT_URL environment variable

Visualising the API state

You can use kubectl commands to query running pods, but you can also run Virtual Kubelet Web UI to connect to the API directly and show details of the running pods and their status.