Exposure of SAN fields

[csyyy106]

v2.14.0 only exposes the cn field, is there any way to expose the SAN field because my SAN contains other domain names，
The ai tells me: By default, the indicator for cert-exporter may only contain the cn field

[csyyy106]

Can it be configured like this

[csyyy106]

Or how to display all of my domain names in the exposed prometheus pointer, which now shows only parts, such as cn="*.example.com"

[joe-elliott]

I'm fine with adding support for exposing the SAN field as well. Unsure if doing this by default makes sense or not. It feels like there would be no cardinality increase.

[csyyy106]

I have got the Certificate indicators of cert-manager by deploying cert-manager exporter, but I manage more than two certificate domain names, dnsNames, through the cert-Manager certificate resource. But only two are shown in the cert-exporter indicator