Unable to attach custom root cert to json_exporter image

[OlegSavchuk]

I'm using https://quay.io/repository/prometheuscommunity/json-exporter

Couple of my instances that I want to monitor are under local domain and I want to attach root certificate to json_exporter container.

Please, advice how is it possible to do? Because I'm trying to reference this article, but on image that json_exporter using there is no package manager at all

https://paraspatidar.medium.com/add-self-signed-or-ca-root-certificate-in-kubernetes-pod-ca-root-certificate-store-cb7863cb3f87