Run Prefect Server & Worker in a K8s Cluster

[benben2602]

Hello, I'm trying to run a prefect server and a worker in a local kind-k8s cluster by using the helm charts.

• First I successfully deployed the prefect-server by using:
  helm install prefect-server prefect/prefect-server --namespace=prefect

• Next I've added a kubernetes WorkerPool named "k8s-test" at the prefect-dashboard.

• Finally I installed the worker with helm:
  helm install prefect-worker prefect/prefect-worker --namespace=prefect -f values.yaml

My values.yaml contains this:

fullnameOverride: prefect-worker
worker:
  apiConfig: server
  config:
    type: "kubernetes"
    workPool: "k8s-test"
  serverApiConfig:
    apiUrl: "http://prefect-server.prefect.svc.cluster.local"

When I check the pods with kubectl everything is running and look okay. But at the prefect-dashboard the worker-pool doesn't appear and the status is 'Not Ready'. There is no log message at the worker pod. It's just running.

Do you have an idea what's wrong with this simple example?

[schwannden]

what do you mean by: the worker-pool doesn't appear and the status is 'Not Ready'? Did you manually create worker pool of kind kubernetes via server dashboard?

[benben2602]

Hi, yes I did.
I found the problem, it was the apiUrl. The correct is: "http://prefect-server:4200/api"
Unfortunately the worker doesn't show any log message if you enter a none existing url...