CoreDNS - v1.9.1

This is a release with security and bug fixes and some new features added. 1.9.1 is also built
with golang 1.17.8 that addressed several golang 1.17.6 vulnerabilities (CVE-2022-23772,
CVE-2022-23773, CVE-2022-23806).
Note golang 1.17.6 was used to built coredns 1.9.0.

Brought to You By

Chris O'Haver,
Elijah Andrews,
Rudolf Schönecker,
Yong Tang,
nathannaveen,
xuweiwei

Noteworthy Changes

• plugin/autopath: Don't panic on empty token (https://github.com/coredns/coredns/pull/5169)
• plugin/cache: Add zones label to cache metrics (https://github.com/coredns/coredns/pull/5124)
• plugin/file: Add TXT test case (https://github.com/coredns/coredns/pull/5079)
• plugin/forward: Don't panic when from-zone cannot be normalized (https://github.com/coredns/coredns/pull/5170)
• plugin/grpc: Fix healthy proxy error case (https://github.com/coredns/coredns/pull/5168)
• plugin/grpc: Don't panic when from-zone cannot be normalized (https://github.com/coredns/coredns/pull/5171)
• plugin/k8s_external: Implement zone transfers (https://github.com/coredns/coredns/pull/4977)
• plugin/k8s_external: Fix external nsAddrs when CoreDNS Service has no External IPs (https://github.com/coredns/coredns/pull/4891)
• plugin/kubernetes: Log api connection failures and server start delay (https://github.com/coredns/coredns/pull/5044)
• plugin/log: Expand {combined} and {common} in log format (https://github.com/coredns/coredns/pull/5230)
• plugin/metrics: Add metric counting DNS-over-HTTPS responses (https://github.com/coredns/coredns/pull/5130)
• plugin/reload: Change hash from md5 to sha512 (https://github.com/coredns/coredns/pull/5226)
• plugin/secondary: Fix startup transfer failure wrong zone logged (https://github.com/coredns/coredns/pull/5085)

Full Changelog: https://github.com/coredns/coredns/compare/v1.9.0...v1.9.1