my database keeps getting deleted when i reinstall the postgresql helm chart

Question

every time when i want to reinstall my PostgreSQL chart on my Kubernetes cluster my database keeps getting deleted, i tried several different charts but the outcome is always the data keeps getting removed

i am using chart from various sources

these are the commands i execute

helm uninstall postgresql
kubectl delete pvc data-postgresql-0
helm install postgresql

Used host OS: Windows Used Kubernetes Version: 1.20 on Minikube Used Helm Version: 3

output of my helm list

postgresql      boterham    1               2021-08-11 06:26:26.585734591 +0000 UTC         deployed        postgresql-6.3.12       11.5.0 

also i am pretty sure that these commands are not meant to be used in a productive environment

Answer 1

The data is persistent in the PV (PersistentVolume), i.e the data is stored in in the PV. If you delete the PVC, you also delete the PV, where all the data is stored.