DaleMiller: If the IP is fairly stable, that’s a reasonable thing to try. Just keep in mind that the Let’s Encrypt rate limit won’t be fixed by the IP being stable — it’s about the hostname/certificate identifiers, so you’ll need to wait until the indicated retry time before issuance can succeed again for that name. Yes, this is the key part: don’t let the container “forget” its ACME state between restarts.