Use API with script instead of frontend

[JulianTS]

Hey,

The simulator already helped me a bunch to develop and test custom plugins!!

I discovered the address and port of the server in the documentation but wondered if I can control everything with an extern script via the API instead of the frontend?
Could not find the endpoints for scheduling/deleting pods and retrieving the scores yet which would be important.

Thanks in advance!!

Currently writing my BA about building and evaluating a custom plugin.
I planned to simulate cloud traces for the evaluation so that the measured impact of the plugin is more realistic, but I can't "run" them on a cluster afaik, so the simulator-server would be a great help!

Edit: doc answered a part of my question

[sanposhiho]

Hello.

The kube-apiserver inside of simulator can be accessed from outside of the simulator. That means you can use kubectl or client-go (or another k8s clients) to create/edit/delete any resource in simulator.

Could not find the endpoints for scheduling/deleting pods and retrieving the scores yet which would be important.

• To delete Pod, you can use any k8s client as described above.
• To schedule Pods, you only need to create Pods. (Scheduler automatically find the non-scheduled Pods and try to schedule them)
• To retrieve scheduling results, you can check the Pod annotation
  • Yes, we surely need to create the function for this. The issue is Implement functions to fetch results from pod annotations #109

[JulianTS]

Okay, I found #176 and kubectl worked with the server flag.

But is there a work around without a kubeconfig for client-node as well?
How does the kubeconfig have to look like or how do I configure it correctly so it has access to it on port 3131?

[sanposhiho]

Probably like this?

apiVersion: v1
kind: Config

clusters:
- cluster:
    server: http://localhost:3131
  name: simulator

contexts:
- context:
    cluster: simulator
  name: simulator

current-context: simulator

[sanposhiho]

Since not all users are familiar with kubeconfig format, it may be better to add this^ kubeconfig example in doc :)

[sanposhiho]

I update documents in #197.
If you have other questions or unclear points, please let me know. I'll add to the PR.

[JulianTS]

the simulation works great, except for some random UnhandledPromiseRejectionWarnings I have to fix now

thanks for your help!