We are using certbot 1.11.on Nginx 1.19.5. The installation is uses a SNAP file. Everything works fine.
We want to change to use dns-01 challenge and I have read the documentation at https://certbot-dns-dnsmadeeasy.readthedocs.io
The documentation provides for:
This is clear.
My question relates to automatic renewals. If I have run the above script, will the automatic renewal process see I have the two host records and automatically attempt to update them, or do I need to make changes at other places for the update to occur? Certbot tells me that the timer to renew is handled by systemctl snap.certbot.renew.timer.
Where is the script that snap.certbot.renew.timer runs, and what changes are needed to be made to this?