Suggestion: More configuration wait_for_txt

[Chippit]

As it currently stands, when using a DNS challenge, the role will use the wait_for_txt module with a 2 minute timeout.

In our environment where we have an internal caching DNS server (that also serves important intranet-only addresses that the rest of our playbooks need, on the same domain name), the propagation test generally tends to fail.

It would be convenient to add role variables to:

• Control the timeout
• Override the server used by the test, so we can change it to use an upstream server without changing the system DNS server of the ansible controller.
• Or optionally just disable it entirely.

[felixfontein]

Hmm, skipping that step in total is not a good idea, since the ACME server's validation will fail if the records haven't been set up yet.

Making the timeout configurable, and allow to configure the DNS servers used (https://docs.ansible.com/ansible/devel/collections/community/dns/wait_for_txt_module.html#parameter-server) definitely makes sense though.

[felixfontein]

I've implemented this in #80.

[Chippit]

Thanks so much for the quick fix! This will be very helpful for us.