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* introduce metric naming test
Signed-off-by: zounengren <zounengren@cmss.chinamobile.com>
* Update metrics.go
Signed-off-by: zounengren <zounengren@cmss.chinamobile.com>
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Signed-off-by: hwdef <hwdef97@gmail.com>
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* Fix EDNS0 compliance
Do SizeAndDo in the server (ScrubWriter) and remove all uses of this
from the plugins. Also *always* do it. This is to get into compliance
for https://dnsflagday.net/.
The pkg/edns0 now exports the EDNS0 options we understand; this is
exported to allow plugins add things there. The *rewrite* plugin used
this to add custom EDNS0 option codes that the server needs to
understand.
This also needs a new release of miekg/dns because it triggered a
race-condition that was basicly there forever.
See:
* https://github.com/miekg/dns/issues/857
* https://github.com/miekg/dns/pull/859
Running a test instance and pointing the https://ednscomp.isc.org/ednscomp
to it shows the tests are now fixed:
~~~
EDNS Compliance Tester
Checking: 'miek.nl' as at 2018-12-01T17:53:15Z
miek.nl. @147.75.204.203 (drone.coredns.io.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok docookie=ok edns512tcp=ok optlist=ok
miek.nl. @2604:1380:2002:a000::1 (drone.coredns.io.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok docookie=ok edns512tcp=ok optlist=ok
All Ok
Codes
ok - test passed.
~~~
Signed-off-by: Miek Gieben <miek@miek.nl>
Signed-off-by: Miek Gieben <miek@miek.nl>
* typos in comments
Signed-off-by: Miek Gieben <miek@miek.nl>
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* - ensure plugins that use prometheus.MustRegister, re-register after reload
- removing once.Do on the startup function was simplest way to do it.
* - fix underscored names (advice of bot)
* - tune existing UT for reload, and add a test verifying failing reload does not prevent correct registering for metrics
* - ensure different ports for tests that can run in same time ..
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Every plugin needs to deal with EDNS0 and should call Scrub to make a
message fit the client's buffer. Move this functionality into the server
and wrapping the ResponseWriter into a ScrubWriter that handles these
bits for us. Result:
Less code and faster, because multiple chained plugins could all be
calling scrub and SizeAndDo - now there is just one place.
Most tests in file/* and dnssec/* needed adjusting because in those unit
tests you don't see OPT RRs anymore. The DNSSEC signer was also looking
at the returned OPT RR to see if it needed to sign - as those are now
added by the server (and thus later), this needed to change slightly.
Scrub itself still exist (for backward compat reasons), but has been
made a noop. Scrub has been renamed to scrub as it should not be used by
external plugins.
Fixes: #2010
Signed-off-by: Miek Gieben <miek@miek.nl>
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* plugin/dnssec: add per server metrics
final plugin.
Fixes #1696 #1492 #1189
* Move cache cap into handler so we can access the server label
* Remove cache-capacity from it entirely
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Got a bit messed up with stb lib "context" usage.
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* global: move to context
Move from golang.org/x/net/context to std lib's context.
Change done with:
for i in $(grep -l '/context' **/*.go); do sed -e 's|golang.org/x/net/context|context|' -i $i; echo $i; done
for i in **/*.go; do goimports -w $i; done
* drop from dns.pb.go as well
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* plugin/dnssec: implement shotgun from CloudFlare
Put a whole bunch of types in the NSEC bitmap and remove the one that's
being asked for.
Add more records for queries to the apex, SOA, DNSKEY, MX.
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After initial startup, see if prometheus is loaded and if so, register
our metrics with it.
Stop doing the init() func and just use the sync.Once so we don't double
registrer our metrics.
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* Rename middleware to plugin
first pass; mostly used 'sed', few spots where I manually changed
text.
This still builds a coredns binary.
* fmt error
* Rename AddMiddleware to AddPlugin
* Readd AddMiddleware to remain backwards compat
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Zou Nengren
li mengyang
Miek Gieben
Francois Tur
