01-minimal example does not work as expected.

[zakkg3]

Expected Behavior

As the https://github.com/zalando-incubator/kopf/blob/master/examples/01-minimal/README.md says:

kubectl get kopfexamples
NAME             DURATION   CHILDREN   MESSAGE
kopf-example-1   1m                    hello world

and

$ kubectl get KopfExample kopf-example-1 -o yaml
apiVersion: zalando.org/v1
kind: KopfExample
metadata:
  ...
spec:
  duration: 1m
  field: value
  items:
  - item1
  - item2
status:
  message: hello world

Actual Behavior

as documented : Whatever is returned from any handler, is stored in the object’s status under that handler id (which is the function name by default).
so I get:

#  kubectl get KopfExample kopf-example-1 -o yaml 
...
status:
  create_fn:
    message: hello world

and then the message is not picked up:

kubectl get kopfexamples
NAME             DURATION   CHILDREN   MESSAGE
kopf-example-1   1m

Steps to Reproduce the Problem

1. run the minimal example.

Specifications

• Platform: metal K8s
• Kubernetes version: (use kubectl version) 1.15.5
• Python version: (use python --version) 3.8
• Python packages installed: (use pip freeze --all) k8s and kopf

Am I doing something wrong? do I miss something?
thanks!

[nolar]

Thanks for reporting. Indeed, that is the definition of crd.yaml. It should be:

  additionalPrinterColumns:
    - name: Duration
      type: string
      priority: 0
      JSONPath: .spec.duration
      description: For how long the pod should sleep.
    - name: Children
      type: string
      priority: 0
      JSONPath: .status.create_fn.children
      description: The children pods created.
    - name: Message
      type: string
      priority: 0
      JSONPath: .status.create_fn.message
      description: As returned from the handler (sometimes).

(With .create_fn. in two fields).

[zakkg3]

Yes, that will fix all the examples :). Thanks for the super-fast answer. we are thinking about use this framework, and with this response, I think we will go this path. thanks!

[nolar]

Released as kopf==0.24.