how to increase kube-prometheus-stack startupProbe?

Question

Hi I am looking in the values.yaml file of the helm chart kube-prometheus-stack and I am not able to find the key/value for the startupProbe. I've got an issue where loading of the prometheus pod takes more time than the default which is 15 min and I am trying to increase it, also trying to editing the statefulset would not work as they would be get overwritten by the prometheus itself. could anyone help me with this issue?
Thanks.

Answer 1

seems like here is what you need

edit Prometheus resource, e.g

$ k -n <ns> get prometheus <name> -o yaml

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
...
spec:
...
  containers:
  - name: prometheus
    startupProbe:
      failureThreshold: 300

and if need to change it in Helm values file

prometheus:
...
  prometheusSpec:
    containers: 
    - name: prometheus
      startupProbe:
        failureThreshold: 300

Answer 2

You can just override default startupProbe settings in Prometheuses custom resource as follows:

spec:
  containers:
    - name: prometheus
      startupProbe:
        failureThreshold: 120