Discussion: do we want to keep net-certmanager or can we integrate in Serving about serving

[skonto]

I would add:

• net-certmanager does not do much, basically it translates Knative certificates to cert-manager certificates. Given that Eventing integrates with cert-manager directly, I think that the right abstraction to integrate is that of a configmap/secret. Most projects out there do the latter. Not sure why Serving needs to do more as long as steps are documented we should be fine.
• Serving already has several deployments and we should consider simplifying the deployment model.

[dprotaso]

I think integrating makes sense - let's formalize a plan - cause we'll need a migration path for existing users

[dprotaso]

Given a migration we might want consider re-working some things - eg. knative-extensions/net-certmanager#353

[dprotaso]

also related: knative/operator#1621 (comment)