os-ddclient does not include cloudns and also doesn't support update URLs

[kr-nn]

Important notices Before you add a new report, we ask you kindly to acknowledge the following:

• [x] I have read the contributing guide lines at https://github.com/opnsense/plugins/blob/master/CONTRIBUTING.md
• [x] I have searched the existing issues, open and closed, and I'm convinced that mine is new.
• [x] When the request is meant for an existing plugin, I've added its name to the title.

Is your feature request related to a problem? Please describe. As the title suggests Cloudns' Dynamic DNS is not supported in the latest versions of os-ddclient. As well the feature cloudns uses is a simple http request that the current version also doesn't support

Describe the solution you'd like After creating an account there should be under the cloudns option or custom options to include the URL or the API key. Once that has been configured the Dynamic DNS should update occasionally

Describe alternatives you've considered For now only the legacy version works. but once that's been taken out of support it will stop.

*Additional context I am aware of the other issue opened here: https://github.com/opnsense/plugins/issues/2880 It was ignored and was automatically closed by bot. I am reopening this to bring attention to it.

[webermax]

Fix this simple one, please!

[AdSchellevis]

@webermax we do accept PR's, feel free to open one.

[webermax]

I'd love to, but couldn't find a suitable starting point

• couldn't even find out where the corresponding error message orginates ("please specify a valid address (IPv4/IPv6) or hostname") which does not seem to appear in the plugin repo at all?

[AdSchellevis]

well, there's enough left to read then :

• https://docs.opnsense.org/develop.html
• https://github.com/opnsense/plugins

A well formed ticket explaining what doesn't work and how you validated the input does work without the gui usually helps people a lot when actually trying to work on issues.