Using Vault and k8s on a VM but cant link the both to have the Vaults secrets in Secret manager of k8s

Vault
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Hi everyone !

i hava in my basement a VM under Debian11, I installed Vault locally and I add minikube after so that I can have the k8s cluster on the same machine
Now I followed this tutorial : Integrate a Kubernetes cluster with an external Vault | Vault | HashiCorp Developer
but I still cant manage to retrieve Vaults secrets under my cluster

Here is the error I have when I try the following command :
kubectl exec devwebapp – curl -s localhost:8080 ; echo
<h1.>Server Internal Error</h1.>

My installation looks good (I had to use getent and not dig to retrieve the external vault address but this shouldnt be the issue)

Help please !