fix make example, remove stray comments
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

The fix in 4b9bc138 breaks docker with

~~~
Step 2/9 : RUN sed -i.bak s@stable/update@stable-security/update@g /etc/apt/sources.list
 ---> Running in 29a0dbae5746
no status provided on response: unknown
~~~

So reverted here. This adds github workflows to test Makefile.docker
syntax as well. And small updates to the docker-coredns over in the
release repo.
Signed-off-by: Miek Gieben <miek@miek.nl>

Fixes #4845
Signed-off-by: Olivier Lemasle <o.lemasle@gmail.com>

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

This adds the (older) docker stuff back in a new Makefile.docker. Add
.dreck alias to be able to release the docker stuff via a github issue.

See #4858
Signed-off-by: Miek Gieben <miek@miek.nl>

* write cname answer to client even if target lookup is servfail
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* fix existing unit test expectations
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.40.37 to 1.40.41.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.40.37...v1.40.41)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
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Bumps [github.com/Azure/go-autorest/autorest](https://github.com/Azure/go-autorest) from 0.11.20 to 0.11.21.
- [Release notes](https://github.com/Azure/go-autorest/releases)
- [Changelog](https://github.com/Azure/go-autorest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Azure/go-autorest/compare/autorest/v0.11.20...autorest/v0.11.21)

---
updated-dependencies:
- dependency-name: github.com/Azure/go-autorest/autorest
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
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Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.0.3 to 2.1.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v2.0.3...v2.1.0)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
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* Spun out docker

Remove docker from Makefile.release so we can actually release.
Unify the mips stuff, now that docker is gone.
Update the docs to reflect this.

See #4858
Signed-off-by: Miek Gieben <miek@miek.nl>

* Update test as well
Signed-off-by: Miek Gieben <miek@miek.nl>

* Note cache miss metric deprecation

* Update notes/coredns-1.8.5.md
Co-authored-by: Miek Gieben <miek@miek.nl>
Co-authored-by: Miek Gieben <miek@miek.nl>

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Update golang version to 1.17

This PR updates golang version to 1.17 when applicable.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Remove `^` to avoid cache

This commit removes `^` to avoid cache in build system
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Change to 1.17.0
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* plugin/file: fix wildcard CNAME answer
Signed-off-by: Yoshida <ykhr53@yokohei.com>

* plugin/file: fix synthesized CNAME answer
Signed-off-by: Yoshida <ykhr53@yokohei.com>

Signed-off-by: James Rouzier <rouzier@gmail.com>

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

Bumps [github.com/Azure/go-autorest/autorest](https://github.com/Azure/go-autorest) from 0.11.19 to 0.11.20.
- [Release notes](https://github.com/Azure/go-autorest/releases)
- [Changelog](https://github.com/Azure/go-autorest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Azure/go-autorest/compare/autorest/v0.11.19...autorest/v0.11.20)

---
updated-dependencies:
- dependency-name: github.com/Azure/go-autorest/autorest
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.40.27 to 1.40.32.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.40.27...v1.40.32)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [gopkg.in/DataDog/dd-trace-go.v1](https://github.com/DataDog/dd-trace-go) from 1.32.0 to 1.33.0.
- [Release notes](https://github.com/DataDog/dd-trace-go/releases)
- [Commits](https://github.com/DataDog/dd-trace-go/compare/v1.32.0...v1.33.0)

---
updated-dependencies:
- dependency-name: gopkg.in/DataDog/dd-trace-go.v1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v2.0.2...v2.0.3)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Signed-off-by: Ondřej Benkovský <ondrej.benkovsky@jamf.com>

* upstream lookups are done with original EDNS options
Signed-off-by: Ondřej Benkovský <ondrej.benkovsky@jamf.com>

* fixup! upstream lookups are done with original EDNS options
Signed-off-by: Ondřej Benkovský <ondrej.benkovsky@jamf.com>

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.40.22 to 1.40.27.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.40.22...v1.40.27)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [k8s.io/client-go](https://github.com/kubernetes/client-go) from 0.22.0 to 0.22.1.
- [Release notes](https://github.com/kubernetes/client-go/releases)
- [Changelog](https://github.com/kubernetes/client-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kubernetes/client-go/compare/v0.22.0...v0.22.1)

---
updated-dependencies:
- dependency-name: k8s.io/client-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
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* rename files to better convey build inclusion reason
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

Bumps [google.golang.org/api](https://github.com/googleapis/google-api-go-client) from 0.52.0 to 0.54.0.
- [Release notes](https://github.com/googleapis/google-api-go-client/releases)
- [Changelog](https://github.com/googleapis/google-api-go-client/blob/master/CHANGES.md)
- [Commits](https://github.com/googleapis/google-api-go-client/compare/v0.52.0...v0.54.0)

---
updated-dependencies:
- dependency-name: google.golang.org/api
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [gopkg.in/DataDog/dd-trace-go.v1](https://github.com/DataDog/dd-trace-go) from 1.31.1 to 1.32.0.
- [Release notes](https://github.com/DataDog/dd-trace-go/releases)
- [Commits](https://github.com/DataDog/dd-trace-go/compare/v1.31.1...v1.32.0)

---
updated-dependencies:
- dependency-name: gopkg.in/DataDog/dd-trace-go.v1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
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Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.40.17 to 1.40.22.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.40.17...v1.40.22)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.39.1 to 1.40.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.39.1...v1.40.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
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This PR fixes docker build issue, as it looks like
debian changed `stable/update` to `stable-security/update`.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

This reverts commit 4a34e8b8.

Add a total cache request counter to follow Prometheus conventions[0].
Mark the existing cache miss metric as deprecated.

> Similarly, with hit or miss for caches, it’s better to have one
> metric for total and another for hits.

[0]: https://prometheus.io/docs/instrumenting/writing_exporters/#namingSigned-off-by: SuperQ <superq@gmail.com>

* check for zone match
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>