Pinged me, still interested in helping out \o/

This fix add a test case for case insensitive/preserving with
whoami plugin.

This fix is part of the effort for 1403.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* plugin/kubernetes: axfr

Hook up dynamic SOA serial by setting ResourceEventHandlerFuncs in
dnsController.

Add prototype of returns msg.Services via the Transfer function. Leave
expanding this to RRs out of scope for a bit.

* plugin/kubernetes: axfr

Respond to AXFR queries

* Fixing race condition

* Fixing instantiation of dnstest writer

* Updates from review

Forward still wasn't right; run make -f Makefile.doc, as well for good
measure.

Retweak this a little to make it slightly easier to *not* forget this,
but it is hardly perfect. Should probably make it an interface a plugin
can implement and then unblock if we see that interface.

We have OWNERS file throughout the repo. The top level OWNERS file
replaces the MAINTAINERS file (sans email addresses that is).

This should have everyone, but the process was quite manual. The rename
from middleware -> plugin also meant I had to do some extra digging on
who actually submitted the PR. I also double checked the current list of
people with commit access.

Every plugin now has an OWNERS, except *reverse*. I'll file a bug for
that.

* remove setdo

* gofmt

* allow only one k8s section

* add test

* plugin/forward: add it

This moves coredns/forward into CoreDNS. Fixes as a few bugs, adds a
policy option and more tests to the plugin.

Update the documentation, test IPv6 address and add persistent tests.

* Always use random policy when spraying

* include scrub fix here as well

* use correct var name

* Code review

* go vet

* Move logging to metrcs

* Small readme updates

* Fix readme

This adds a generic way of start a check function to check a backend.
This package can be used to kick off healthchecks. The package makes
sure only 1 is run at any one time.

It should allow for:
See upstream error -> kick off healthcheck

and not to worry about overwhelming the upstream with a barrage of
queries.

Add man-pages for the new plugins.

* tune usage of var global, add limit to options

* update readme for minimal values

* useless change to quick-off codecov

* fix msgs for min values and tune the flag for end of reload usage, with a 'maybe' option

* adding UT for min values, adding MD5 of corefile on the log

* add new policy always_first to mimic windows dns resolvers
fill documentation, add UT and cleanup fmt

* change name of policy from always_first to first. Update docs

As plugin/proxy always returns compressed messages, it's important to
set this before calling Scrub(), as some messages will be unnecessarily
truncated otherwise.

HTTP healthchecking will be implicitely activated for proxy upstream
hosts, even if not configured. The README states that not using the
health_check directive will disable HTTP healthchecks though.

It seems to me that the availability of the HealthCheck.Path attribute
is used as indicator whether HTTP healthchecks should be used or not.
The normalizeCheckURL() function didn't check that attribute though,
always returning a CheckURL. This would increase the healthcheck failure
on every third failure in plugin/proxy, without any possibility for the
upstream host to be marked as healthy again. This would eventually
remove all upstream hosts from the serving pool.

This adds the inital top-level OWNERS file. Each plugin should also get
one, but that will be more work.

Ref: #1454

Golint fix to make goreportcard happy
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

This fix uses external context package for server-tls.go
This fix is a follow up to 1468.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

This was used for docker automation or someting?
I don't think there are uses for this, lets remove it.

With Go 1.9 you *can* include the std lib's context package and nothing
breaks. However we never officially made the move (and grpc also doesn't
ues the std lib's one).

Standardize all plugins on using the extern context package.

Fixes #1466

Let caddyfile parser give us the token, the comma sep thing also didn't
work.

Fixes #1446

* plugin.md updates

Talk about return code, logging and other bits.

Also checked the code for fmt.Printf logging, there is none.

Fixes #1449 #1450

* review

* more typos

* Add reload directive

* gofmt

* Fix default jitter and error message

* remove unneeded call to NextArg, add a couple negative setup tests

* Review feedback

* testpr3

* hack

* chop

* tolerate coredns/coredns get fail

* remove TEST from readme

Last release I forgot steps, put them in Makefile.release. Generating
the manual files will be skipped if 'ronn' can't be found.

* Enable forward

* Regen all docs

CoreVersion needs to be documented for golint, but we can't use too much
text because we grep this file for the coredns version.

* move flag blacklisting to main

Doing it in init() is the wrong place or something else changed. Doing
it in main() makes it easy to see *when* this happens.

* keep trapsignals

* plugin/forward: add out of tree forward plugin

This is a simpler proxy than *proxy*, include by default so it is easier
to switch (i.e. no recompile). It lacks features compared to proxy (did I
say it was simpler), but does cache udp and tcp connection, so it is
faster than proxy.

* Muck with the makefile

* Versioning forward now