Bearer Token Auth for subset of applications on K8s

[D L]

Premise: We are on k8s and the prometheus helm chart is working fine out of the box. However, there are certain apps on our cluster that requires bearer tokens, and for that subset of apps we are unable to scrape. 

What's worst is that these bearer tokens expire and need to be queried for every week. 

We tried a custom solution through pushgateway and that didn't turn out well because of the overwhelming amount of metrics. 

I'm guessing a custom solution will be inevitable here. Any ideas from the bright people of this group?