I’m currently running a v2 rack, and I’m migrating to a v3 rack. I think I’ve almost got everything working and ready to migrate, but the last issue is regarding SSL certificates for my domains. I would like to make sure that my new v3 rack is all set up and ready to serve SSL requests on the original domain before I change the DNS records.
What is the LetsEncrypt workflow for issuing SSL certificates? What challenges does
cert-manager support (HTTP-01, or DNS-01)?
I will need to use the DNS-01 challenge, because I want to set up an SSL certificate before I change the DNS records. Is there a way to do this, so that it prints the required DNS records in the logs?
It looks like Convox is using cert-manager, and they have a section in the docs about DNS validation: DNS Validation | cert-manager