- I have dedicated V4 IP address assigned to my fly.io app
- DNS A record is pointed to its V4 IP address
- DNS AAAA record is pointed to its V6 IP address
- CNAME with _acme-challenge is configured as directed
I would expect when I visit any subdomain, fly.io would serve my app, but it doesnt work so until i manually add certificate for that subdomain.
c.example.com doesnt work - as it is not explicitly listed in certificates
What can I do to make this work?
It might’ve been a timing thing, because it looks like the certificates were issued. I found your app / certificate and confirmed that.
We got this error in the first few attempts from Let’s Encrypt:
Incorrect TXT record \"HYLEoBTiW5mIMHqjsFgGylclFfDeLU0-UTdqyNKPgzQ\" (and 1 more) found at _acme-challenge.<redacted>
(Don’t worry, that challenge is invalid and cannot be used again to provision a certificate, that’s why I didn’t bother redacting it)
We’re you switching from another provider? I wonder if Let’s Encrypt received multiple TXT responses.
Thanks, seems it is working now.
I was trying similar things with Vercel and Cloudflare.
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