* Stop vendoring go dns and x/net/context

* dep ensure run

* Fix Makefile

* Fix typo

* Delete context vendor dir

Lower-case dnstap in the readme and update Makefile.release to point to
the new website.

Don't hold on to the *first* wildcard you'll find, but keep searching,
there may be one even deeper in the tree.
Also add multi level wildcard test

Fixes #776

middleware/dnstap add

* mw/file: wildcard at apex fix

This adds a test case (that does passes!)

* completer test

* hosts middleware should return NoError if other records exist in the zone

* return RcodeSuccess for hosts queries for non A,AAAA records if the zone exists

* return NXDOMAIN instead of REFUSED when zone is not found

* fix aaaa response

* unit tests

* Add unit tests & cnames

* more progress

* fix

* next mw dependent unit tests

* add tests for OnNXDOMAIN

* Add AAAA and ndots unit tests; fix request.NewWithQuestion

* Correct default value in README

* add CNAMEs to readme

* review

* fix autopath examples

* fix and test CNAME response order

* add wildcard parameter to allow resolving multiple name to the same IP

* first test for the reverse wildcard middleware

* update wildcard keyword test to pass code coverage

* rewrite readme

* remove breaks

* missed a break

* nits

* show options as optional
* add note to pods insecure
* add minimal configuration example.
* add a note about replacing kube-dns in the summary
* move deployment section into summary.

* Update README.md

* replace options sections with bullets

and indent all sub sections to match bullet indentation.
not sure if this will render in github properly - it doesn't in the in-line editor preview.

* fix indentation

Contrary to various on-line guides and editors, github now requires 2 spaces to indent paragraphs with bulleted sections above (not just 1).

* Update README.md

* Update README.md

* Update README.md

* fix label syntax

It's just a single EXPRESSION.  The EXPRESSION itself has its own kubernetes label expression format.

* Update README.md

* Update README.md

* Switches out Unhealthy bool for OkUntil timestamp

* Make sure servers are healthy forever if there are no health checks

* Moves health check off into a go routine to avoid blocking conditions

* Improved logging info

* Fixes initial date

* Fixes health checking; alters tests to adapt to async health checking

* Moves future variable into static upstream and populates it in more places

* Restores silencing of stdout during testing

* Restores silencing of stdout during testing

* keeps check url string once built

* Removes debug message

* uses zero value to signal no checking; reduces in-mutex code to a fetch

* initial commit

* add config options

* add readme

* rewording

* revert unlreated change

* normalize host domain path

* add ndots opt, allow > 1 host domains, pull host domains from resolv.conf

* implementing review feedback

* update readme

* use dns lib, config format, defaults

* Correct autopath example.

This fix disables codecov/patch and codecov/changes status
report as the project has already been well covered by
codecov/project status. The codecov/patch and codecov/changes status
are misleading.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

While adding a parallel performance benchmark I stumbled on a race
condition (another reason to add performance benchmarks!), so this
PR makes sure the msg is created in a race free manor and adds the
parallel benchmark.

* change IPv4 separator from - to .

* fix reverse middleware tests and README to adapt with . instead of -

This fix adjusted codecov config (codecov.yml) so that
commit status is success as long as coverage > 40%.

This fix fixes #752.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

Fix transferring the zone from a master and the matching of notifies
to source and dst IP addresses.

Add `upstream` keyword as well, because it is needed for the same
reasons as in the *file* middlware.
Add some dire warning about upstream in the readme of both middlewares.

Out of band testing, hidden by net build tag was added. Integration
testing still needs to be setup.

We would silently ignore anything that we couldn't parse on the command
line, this change make this an error.

Fixes #743

Cant' transfer zone from masters without populating `f`.
This error prevents secondary zones recognized as "true" secondary, so secondary setting never worked.

In grafana we miss the context of where this is called, make the name
more descriptive.

Also test the GH webhook.

* update dockerfile to allow use of https_google

to use TLS in a docker container (based on Alpine linux) you need to also include the CA certificate files

* cleaned up version of Dockerfile that supports https_google

* cleanup: go vet and golint run

Various cleanups trickered by go vet and golint.

* Fix tests and lowercase all errors

Lowercase all errors, some tests in kubernetes use errors from
kubernetes which do start with a capital letter.

* federation initial commit

* UTs/bugfixes

* federation bits

* polish, cover UT gaps

* add TODO

* go fmt & todo note

* remove unrelated change

* pr changes

* start node watcher

* get real node name

* remove unused case

* middleware/debug: add

Add a debug "middleware" that disables the recover() and just lets
CoreDNS crash; very useful for testing.

Fixes ##563

* fix test

* Feedback: check the value of Debug