[Feature] OCI DNS integrate

[diegocanton]

Is your feature request related to a problem?
I would like to use the tool, but we maintain our DNS on Oracle Cloud Infrastructure (OCI). After installing the web application, it asked me to select a DNS service, but OCI is not in the list. Searching online, I saw that Certmate seems to use CERTBOT plugins. Further research revealed the existence of the plugin https://github.com/therealcmj/certbot-dns-oci. Integrating this option into Certmate would be interesting, since a plugin project already exists.

Integration of OCI DNS into the platform via a plugin available on GIT

[fabriziosalmi]

OCI DNS is now usable as of v2.12.1 through the new custom-script DNS provider (#286): point CertMate at your own auth/cleanup hook scripts and certbot drives them via its core manual mode, with no plugin installation. The DNS providers documentation includes a worked OCI CLI example, including the rrset merge needed for apex+wildcard certificates.

A native certbot-dns-oci integration remains an option for the certbot 5.x upgrade epic (#103), where the plugin set will be re-evaluated as a whole. If the custom-script path covers your use case, let us know here.