It should come out of beta soon, most likely next week barring reports of issues.
I’m a bit disappointed it still got stuck. From my understanding of the forward plugin in coredns I don’t see how that could happen. Only your DNS servers are listed there now, cloudflare should only be tried if those fail. Was there anything in the log for the DNS plugin of note? You can get to that from here for reference. You can also turn on debug logging for supervisor by doing ha supervisor options --logging debug. That will turn on debug logging for the plugins as well which might give more insight.
One possibility I would like to check if you don’t mind (should be quick). Most of the containers used in a typical home assistant deployment are alpine based which means they use musl rather then glibc. This has an interesting consequence when it comes to DNS because of this commit. According to the DNS spec if a host exists a DNS server should always return NOERROR, even if they have no answers for the particular type of query (like if a host has only an ipv4 address but not an ipv6 one). musl enforces this, glibc does not. Because musl and alpine is newer not all DNS servers respect this rule and as a result unexpected NXDOMAINS can be encountered on alpine based systems.
We set up a simple test to check for this and are going to start testing DNS servers for this so we can let users know if their DNS server has an issue once this PR is merged. In the meantime you can test this manually by using the test domain we set up that only resolves for A type queries by doing this:
dig _checkdns.home-assistant.io A +noall +comments
dig _checkdns.home-assistant.io AAAA +noall +comments
Your response should have status: NOERROR for both of those, like this:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6899
If not then that may be the issue. Since a query issued for a type not supported by one of your local domains could be getting back an NXDOMAIN and causing the DNS plugin (which is alpine based) to think the entire domain doesn’t exist. Home Assistant too since it is also alpine based.