Existing Secret for Basic Auth

[fritzduchardt]

Feature Request

I would like to provide my basic auth credentials via an external secret. Currently, I am forced to commit them to Git.

To do so I would need something along the lines of:

webConfiguration:
  existingSecret: true
  existingSecretName: mySecret

[beorn7]

Pushgateway uses https://github.com/prometheus/exporter-toolkit . I believe a feature like that needs to be implemented over there.