Quote from moshe on 22/08/2022, 3:42 pm

Problem

User tries to install kube-promethues-stack by running helm install command

helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack

checking the pods status produce the following error

kube-prometheus-stack-grafana-***********            2/3     ImagePullBackOff   0          74s

check the pod describe for additional details. but usually it is because you forgot to run update command to the helm

helm repo update

Since images are changed from time to time on the deployment and you have older definitions