* Revert "make copies of RRs before returning them (#4409)"

This reverts commit 8b2ff6c3.

* Document copying responses

See #4409 and the comments. This documents that issue, but doesn't
change the in-tree plugins just yet.
Signed-off-by: Miek Gieben <miek@miek.nl>

* Update plugin.md
Co-authored-by: Chris O'Haver <cohaver@infoblox.com>
Co-authored-by: Chris O'Haver <cohaver@infoblox.com>

Traces are currently working properly with datadog with the exception of having the ability to facet the tags

![image](https://user-images.githubusercontent.com/5513509/105051238-dddbbd00-5a6e-11eb-8fb2-071b3b1fa8cc.png)

In order to get valuable graph in dashboard the tag on the metrics need to be faceted by datadog.
This PR update the tags with facetable path.
While keeping backward compatibility with existing path for zipkin.

Graph like:
![image](https://user-images.githubusercontent.com/5513509/93375960-339e1f80-f859-11ea-81f0-a1074c375630.png)
![image](https://user-images.githubusercontent.com/5513509/93375997-4153a500-f859-11ea-9f8d-63d45217c681.png)
![image](https://user-images.githubusercontent.com/5513509/93376064-5597a200-f859-11ea-823a-6768f59e3497.png)
![image](https://user-images.githubusercontent.com/5513509/93376405-d6ef3480-f859-11ea-8d6f-58dda247cc86.png)
![image](https://user-images.githubusercontent.com/5513509/93376518-069e3c80-f85a-11ea-9a7e-0426a3817439.png)
Signed-off-by: bob <bob.bouteillier@datadoghq.com>

* plugin/forward Add rcode and rtype to request_duration_seconds metric
Signed-off-by: Maxime Ginters <maxime.ginters@shopify.com>

* Control the cardinality of query type
Signed-off-by: Maxime Ginters <maxime.ginters@shopify.com>

Signed-off-by: timyinshi <shiguangyin@inspur.com>

Fixes #4428
Signed-off-by: Lars Ekman <lars.g.ekman@est.tech>

Automatically submitted.

Automatically submitted.

Signed-off-by: Frank Riley <fhriley@gmail.com>

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

* Remove draft draft from notes, and prepare to release
Signed-off-by: Miek Gieben <miek@miek.nl>

* fix time
Signed-off-by: Miek Gieben <miek@miek.nl>

* remove draft=true
Signed-off-by: Miek Gieben <miek@miek.nl>

* Remove manifest-tool installation

This doesn't install cleanly anymore. I've installed manifest-tool in
/usr/bin on the releaser machine; use that instead of building our own
each time.
Signed-off-by: Miek Gieben <miek@miek.nl>

* Check for manifest-tool to be available; otherwise we tag a release and then fail
Signed-off-by: Miek Gieben <miek@miek.nl>

* Remove draft draft from notes, and prepare to release
Signed-off-by: Miek Gieben <miek@miek.nl>

* fix time
Signed-off-by: Miek Gieben <miek@miek.nl>

* remove draft=true
Signed-off-by: Miek Gieben <miek@miek.nl>

Signed-off-by: zouyu <zouy.fnst@cn.fujitsu.com>

This PR update 1.8.1 release note, adding PR 4387 and 4380 notes,
and bumps the time.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

Bumps [k8s.io/client-go](https://github.com/kubernetes/client-go) from 0.20.1 to 0.20.2.
- [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/v0.20.1...v0.20.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.36.23 to 1.36.28.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.36.23...v1.36.28)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Automatically submitted.

Update the file, remove the duplicate line, add new authors
Signed-off-by: Miek Gieben <miek@miek.nl>

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

Automatically submitted.

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.36.19 to 1.36.23.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go/compare/v1.36.19...v1.36.23)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

PR #4161 is stalled. Tried to cherry pick the code from there, but that
led to conflicts, manually copying over while taking into account the
comments on that PR. Use that code and extend the error checking, don't
modify existing tests and make the badwriter test simpler.

Closes: #4161
Signed-off-by: Miek Gieben <miek@miek.nl>

add tests
Signed-off-by: Miek Gieben <miek@miek.nl>

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

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

* Update plugin/pkg/up/up.go

* fmt
Signed-off-by: Miek Gieben <miek@miek.nl>
Co-authored-by: Chris O'Haver <cohaver@infoblox.com>

* fix record missing for zone with many of records

* Update debug log

* Update debug mesg

* update test_clouddns

Automatically submitted.

Signed-off-by: gunadhya <6939749+gunadhya@users.noreply.github.com>

An apex only zone returns the wrong answer, document this by adding a
test.

Closes: #4374
Signed-off-by: Miek Gieben <miek@miek.nl>

Fix a typo and make clear that multiple addresses are allowed.
Signed-off-by: Miek Gieben <miek@miek.nl>