The part of the admin documentation that talked about self signed TLS certificates has been completely removed from the documentation but now there are a couple of useful guides that do not exist on CRW documentation anymore:

• Admin scenario: use some specific certificates for CRW routes, signed by an external CA, instead of using the default OpenShift ones
• User scenario: locally import the CA certificate in case the CRW routes certificates are signed by a CA that's not trusted by the local machine/browser

In general I think that we should refactor the untrusted certificates documenation putting all the admin guides about using untrusted certificates together (for git, proxys, generic external service as keycloak, registries etc...) and rename self-signed with untrusted that is the wording used in OpenShift documenation.