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* plugin/kubernetes: remove bunch a string ops
This removes a bunch of appends to where not needed, makes dnsutil.Join
take variadic args which removes the need to wrap in a new string slice.
Signed-off-by: Miek Gieben <miek@miek.nl>
* Fix calls to dnsutil.Join
Signed-off-by: Miek Gieben <miek@miek.nl>
* Revert these
Signed-off-by: Miek Gieben <miek@miek.nl>
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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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* Clean up tests logging
This cleans up the travis logs so you can see the failures better.
Older tests in tests/ would call log.SetOutput(ioutil.Discard) in
a haphazard way. This add log.Discard and put an `init` function in each
package's dir (no way to do this globally). The cleanup in tests/ is
clear.
All plugins also got this init function to have some uniformity and kill
any (future) logging there in the tests as well.
There is a one-off in pkg/healthcheck because that does log.
Signed-off-by: Miek Gieben <miek@miek.nl>
* bring back original log_test.go
Signed-off-by: Miek Gieben <miek@miek.nl>
* suppress logging here as well
Signed-off-by: Miek Gieben <miek@miek.nl>
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Fixes #1960
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Prevent future; "remove trailing whitespace" PR, but adding a simple
presubmit that checks for this.
This presubmit flagged quite some offenders, remove all trailing
whitespace from. Apart from that there aren't any other changes.
Signed-off-by: Miek Gieben <miek@miek.nl>
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Signed-off-by: Miek Gieben <miek@miek.nl>
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* Update dependencies and add etcdv3 client
* Update etcd plugin to support etcd v3 clients
Fixes #341
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add a test to see if we copy the rcode correctly. Some minor cleanup in
import ordering and renaming NewUpstream to New as we already are in the
upstream package.
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Remove the code and remove the call in etcd and kubernetes handlers.
This does mean we should not add dups in the first place, which means
adding maps in backend_lookup to prevent dups from begin added.
This should cut down on the allocations because dnsutil.Dedup is very
expensive by converting everything to strings, we avoid doing that now.
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Uppercase all these test errors as well. And extend the presubmit to
check for these in the future. Also do a slightly smarter grep to only
get t.<something>. as (because dump regexp) this also grep over non test
files.
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Another thing we can test automatically, we sorta settled on using an
uppercase letter in in t.Log and t.Fatal calls.
Let's just check for this.
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* Remove Compress by default
Set Compress = true in Scrub only when the message doesn not fit the
advertized buffer. Doing compression is expensive, so try to avoid it.
Master vs this branch
pkg: github.com/coredns/coredns/plugin/cache
BenchmarkCacheResponse-2 50000 24774 ns/op
pkg: github.com/coredns/coredns/plugin/cache
BenchmarkCacheResponse-2 100000 21960 ns/op
* and make it compile
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Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Create separate function for zone check
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Add tests for zone A records
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Remove pointer from checkZoneForRecord func signature, Add documentation
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Change apex to zone, Update readme information, Add additional tests
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Change zone to apex
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Change readme to reflect apex change
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Correct code comment
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
Correct string join for apex.dns
Signed-off-by: Mario Kleinsasser <mario.kleinsasser@gmail.com>
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* update docs
* plugins: use plugin specific logging
Hooking up pkg/log also changed NewWithPlugin to just take a string
instead of a plugin.Handler as that is more flexible and for instance
the Root "plugin" doesn't implement it fully.
Same logging from the reload plugin:
.:1043
2018/04/22 08:56:37 [INFO] CoreDNS-1.1.1
2018/04/22 08:56:37 [INFO] linux/amd64, go1.10.1,
CoreDNS-1.1.1
linux/amd64, go1.10.1,
2018/04/22 08:56:37 [INFO] plugin/reload: Running configuration MD5 = ec4c9c55cd19759ea1c46b8c45742b06
2018/04/22 08:56:54 [INFO] Reloading
2018/04/22 08:56:54 [INFO] plugin/reload: Running configuration MD5 = 9e2bfdd85bdc9cceb740ba9c80f34c1a
2018/04/22 08:56:54 [INFO] Reloading complete
* update docs
* better doc
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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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* Update all plugins to use plugin/pkg/log
I wish this could have been done with sed. Alas manually changed all
callers to use the new plugin/pkg/log package.
* Error -> Info
* Add docs to debug plugin as well
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* add upstream @self and loop count
* 1st round of feedback
* allow argless upstream
* update test
* readmes
* feedback
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* 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
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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.
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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
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These test cases became invalid with the fix of message truncation and
don't validate anything.
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* Fix truncation of messages longer than permitted by the client
CoreDNS currently doesn't respect the maximum response size advertised
by the client and returns the full answer on a message with the TC bit
set. This breaks client implementations which rely on DNS servers
respecting the advertised size limit, for example the Ruby stdlib
client. It also has negative network performance implications, as large
messages will be split up into multiple UDP packets, even though the
client will discard the truncated response anyway.
While RFC 2181 permits the response of partial RRSets, finding the
correct number of records fitting into the advertised response size is
non-trivial. As clients should ignore truncated messages, this change
simply removes the full RRSet on truncated messages.
* Remove incorrect etcd test assertion
If a client requests a TXT record larger than its advertised buffer
size, a DNS server should _not_ respond with the answer, but truncate
the message and set the TC bit, so that the client can retry using TCP.
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* Constent atx headers
* Regen manual pages
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* Simplify plugin/pkg/fall
* Remove unused import
* Fix fall_test
* Get fall coverage to 100% just because
* gofmt. sigh.
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* Add pkg/fall for Fallthrough
Move this into it's own package to facilitate tests. Important bug
was fixed: make the names fully qualified.
Add fall package to hosts, reverse, etcd, and fix kubernetes and any
tests. The k8s tests are still as-is, might need a future cleanup.
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* Add manual pages
Generate manual pages from the README and extend README with Name and
Description sections.
The generation requires 'ronn' which may not be available. Just check in
all generated manual pages.
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(#1277)
This fix tries to address the issue raised in 1275 to clarify
the syntax for multiple endpoints specification.
This fix also adds additional test cases to demo the usage.
This fix fixes 1275.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
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Use caching, just ask etcd for every query. This also improves
throughput because the single lock in inflght is bypassed.
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Add a dynamic SOA record (at least the serial and minttl). This create
another interface that should be implemented by the backends.
For now default to returning epoch in as a uint32 (no change from
before).
Lower the minTTL returned to 30s (from 60s)
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* core: allow all CIDR ranges in zone specifications
Allow (e.g.) a v4 reverse on a /17. If a zone is specified in such a
way a FilterFunc is set in the config. This filter is checked against
incoming queries.
For all other queries this adds a 'x != nil' check which will not impact
performace too much. Benchmark function is added as well to check for
this as wel.
Add multiple tests in tests/server_reverse_test.go.
Benchmark shows in the non-reverse case this hardly impact the speed:
~~~
classless:
pkg: github.com/coredns/coredns/core/dnsserver
BenchmarkCoreServeDNS-4 1000000 1431 ns/op 16 B/op 1 allocs/op
pkg: github.com/coredns/coredns/core/dnsserver
BenchmarkCoreServeDNS-4 1000000 1429 ns/op 16 B/op 1 allocs/op
master:
pkg: github.com/coredns/coredns/core/dnsserver
BenchmarkCoreServeDNS-4 1000000 1412 ns/op 16 B/op 1 allocs/op
pkg: github.com/coredns/coredns/core/dnsserver
BenchmarkCoreServeDNS-4 1000000 1429 ns/op 16 B/op 1 allocs/op
~~~
* README.md updates
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* doc update
Go through all README and fix mistakes, extend example and let more
corefile snippets be test for validity.
* Cant use spefic addr in test
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Add a full test server impl in this new package + tests. Move
dnsrecorder into this package as well and finish up the commented out
tests that were left in the old dnsrecorder package.
Update all callers and tests.
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Forgot about these.
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* plugins: expand examples
Expand some examples and test them by annotating it with `corefile`
* Can't start kubernetes
* Can test pprof :(
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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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Miek Gieben
Karsten Weiss
Jiacheng Xu
Nitish Tiwari
Mario Kleinsasser
Chris O'Haver
Brad Beam
Harshavardhana
Tobias Schmidt
John Belamaric
Yong Tang
