CoreDNS-008 has been released!
CoreDNS is a DNS server that chains plugins, where each plugin implements a DNS feature.
Release v008 has a lot of content, with new plugin and major features added to existing plugin.
Please note there is an incompatible change to the log
directive - it now only logs to stdout
and so
only allows stdout
as the file name (which of course may be omitted).
Core
-log
flag was changed into a boolean as all logging will be written to standard output.
Plugins
New
- hosts allows CoreDNS to read a
/etc/hosts
styled file and generate responses from that. - debug can disable the
panic/recover
that is enabled by default. Mostly useful for testing/non-prod use cases to generate stack traces.
Updates
- chaos now returns the correct
version.bind
TXT
record. - kubernetes
- Now returns a proper NS record for the cluster domain
- Supports
ExternalName
services, which was an oversight in the 1.0.0 version of the Kubernetes dns spec - Now supports federation records
- Has had some other bug fixes.
- file
- Now supports DNAME RFC 6672
- Refuse to load a zone without a SOA record.
- file, auto don’t reload a zone when the SOA’s serial hasn’t changed.
- secondary now behaves properly if queried before the zone has been transferred
- log, errors output everything to stdout and let
journald
ordocker
(or whatever) that care of further handling. This is backwards incompatible change wrt to the Corefile:log query.log
will return an error. - cache got a new cache implementation to be more scalable and a new
prefetch
option for fetching records before the TTL expires. - proxy does not use
singleinflight
anymore, removing a potential bottleneck on the single mutex in that implementation; it now forwards all queries it get to the upstream nameserver.
Contributors
The following people helped with getting this release done:
Chris Aniszczyk, Chris O’Haver, cricketliu, Eric Yan, John Belamaric, Jonas Östanbäck, Manuel Alejandro de Brito Fontes, Miek Gieben, Pat Moroney, Yong Tang
If you want to help, please check out one of the issues and start coding!
For documentation and help, see our community page.