CustomDNS should support other query types (CNAME, TXT, ...)

[0xERR0R]

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[SuperSandro2000]

I added cname support in #996

[BenMcH]

While the CNAME PR appears to be DOA, you can emulate CNAMEs for internal IPs using yaml anchor tags like this:

customDNS:
  customTTL: 1h
  mapping:
    home-server.lan: &server 192.168.0.1
    app-1.lan: *server
    app-2.lan: *server

This of course has its downsides and doesn't solve for external domain names, but for my use-cases this works well enough.

If I have time in the coming weeks/months, I may look at picking up where @SuperSandro2000 left off and add @0xERR0R's suggestion for psuedo-funcitons in the config file to see if we can get that merged. I know I'd prefer my apps to be CNAMEs even if this is technically functional.

[joryirving]

I saw that @BenMcH merged #1352 and I'm very thankful, but I wanted to know if there was a way to handle multiple zones in 0.24? I got one zone working wonderfully.

[kwitsch]

Shouldn't be a problem since according to RFC1035 the master file format supports it. The commonly used name 'zone file' is a bit misleading since it supports more than just one zone.

[kwitsch]

Implemented with #1352 and included in release v0.24.