CrashBackOff in Knative Controller Pod After Deploying with Official YAML Script about serving

[helloxjade]

The error above occurred because I manually added an environment variable in the controller's deployment configuration:

name: WEBHOOK_NAME
value: webhook

but if I don't add it, a different error occurs

kubectl logs controller-8d57675b8-9c4wb -n knative-serving 
panic: The environment variable "WEBHOOK_NAME" is not set.
This should be unique for the webhooks in a namespace
If this is a process running on Kubernetes, then initialize this variable via:
  env:
  - name: WEBHOOK_NAME
    value: webhook


goroutine 1 [running]:
knative.dev/pkg/webhook.NameFromEnv()
	knative.dev/[email protected]/webhook/env.go:56 +0x7b
main.main()
	knative.dev/serving/cmd/webhook/main.go:166 +0x6f
```
`

[ReToCode]

There is definitely something off with either your setup or your YAML. Our resources contain that env variable: https://github.com/knative/serving/blob/main/config/core/deployments/webhook.yaml#L77.

Please check if your yaml is correct, like get it from

https://knative.dev/docs/install/yaml-install/serving/install-serving-with-yaml/#install-the-knative-serving-component

[helloxjade]

There is definitely something off with either your setup or your YAML. Our resources contain that env variable: https://github.com/knative/serving/blob/main/config/core/deployments/webhook.yaml#L77.

Please check if your yaml is correct, like get it from

https://knative.dev/docs/install/yaml-install/serving/install-serving-with-yaml/#install-the-knative-serving-component

yeah I use Knative Version: 1.11.6 yaml , it dosen‘t have env:

• name: WEBHOOK_NAME
  value: webhook

[dprotaso]

In 1.11.6 release yaml we have

- name: WEBHOOK_PORT
  value: "8443"

yours is indicating "tcp://10.96.3.39:9090" - which looks like a custom modification you made yourself.

[dprotaso]

I just tested this patch release on kind and the webhooks installed correctly.