* add proxy tcp
* add truncated for tcp to udp response
* move truncation to scrubbing
* add test that executes upstream over tcp
* middleware/proxy: some tweaks
rename force-tcp to force_tcp to be inline with the rest and use
a dnsOptions struct to put the options in to allow it to be extended.
Add some parse tests as well.
* Fix test and rename dnsOptions Options
According to the code, the default health check interval is 30 seconds,
not 10 as stated in the documentation. (The alternative would be to
adjust the interval in the code.)
* core: add listening for other protocols
Allow CoreDNS to listen for TLS request coming over port 853. This can
be enabled with `tls://` in the config file.
Implement listening for grps:// as well.
a Corefile like:
~~~
. tls://.:1853 {
whoami
tls
}
~~~
Means we listen on 1853 for tls requests, the `tls` config item allows
configuration for TLS parameters. We *might* be tempted to use Caddy's
Let's Encrypt implementation here.
* Refactor coredns/grpc into CoreDNS
This makes gRPC a first class citizen in CoreDNS. Add defines as being
just another server.
* some cleanups
* unexport the servers
* Move protobuf dir
* Hook up TLS properly
* Fix test
* listen for TLS as well. README updates
* disable test, fix package
* fix test
* Fix tests
* Fix remaining test
* Some tests
* Make the test work
* Add grpc test from #580
* fix crash
* Fix tests
* Close conn
* README cleanups
* README
* link RFC
* Add edns0 code rewrite
* check arg count
* change `new`; set EDNS0 if request doesn't have it set
* change set to replace_or_append
* change to append_or_replace
* return error in new
* update documents
* fixt UT
* return error
* go fmt
* Rework for more general EDNS0 use
Also changed how rules are created and validated. Implements
EDNS0 NSID in addition to local.
* go fmt
* README updates, NSID tests and fixes
* gofmt -s -w
* Fix tests for rewrite syntax change
* Add tests, fix error message
* Review nits
* Missed on nit
* More tests, integration test, fix edns0 parse issue
* Fix README, use RewriteIgnored
* go fmt
In both etcd and k8s don't error log NXDOMAIN as this log spams the logs
for no good reason.
Fixes#568
Better long term solution is log rate limiting for both *log* and
*error*.
This fix updates the Makefile to add the `go lint` check
for the build. This fix also fixes several go lint issues.
NOTE: This fix does not enforce `go lint` (suggestion only).
This fix also ignores the `go lint` error:
```
middleware/middleware.go:72:1: context.Context should be the first parameter of a function
```
as it requires too many changes in API.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* checkpoint
* Pass context through ServeDNS, enable gRPC tracing
* Fix types and make tracer available to proxy. go fmt
* Fix imports
* Use the DoNotStartTrace option
* Change to SpanFilter from DoNotStartTrace
* Use new name (IncludeSpan)
* Final names
* Add tests; fix possible client/conn leaks in grpc
* go fmt
* middleware/metrics: survive restart
Keep the handler running during restart. Stopping and starting the
handler results in "address in use" - sometimes, meaning the reload
will be flaky. In turn this behavior means any changes to the monitor
stanza are not picked up.
* remove resync
* Document fallthrough and fix *reverse*
While documenting the fallthrough behavior and testing it I noticed
the did not properly work. This PR does a tiny bit too much as it
- Documents fallthrough
- Fixes fallthrough in reverse
- Makes directives_generate complain on duplicate priorities
- Moved reverse *before* file in middleware.cfg
- Add a test that tests the reverse fallthrough behavior with a file
backend
Fixes#515
* ....and fix the tests
* WIP: Client-side of gRPC proxy
* Add tests
* gofmt
* Implement OnShutdown; add a little logging
* Update for context in Exchange change
* go fmt
* Update README
* Review comments
* Compiling is good
* More README improvements
* middleware/proxy: give Exchange a context
Make context.Context the first paramater in the Exchange method.
This is inline with all other query functions.
* up the version
* middleware/reverse: random updates
Make the documentation somewhat shorter (and hopefully clearer in the
process). Also to be on-par with the *auto* middleware, start counting
the referenced zones from 1 (instead of 0).
Some variable cleanups and use the NextOrFailure in the ServeDNS
function.
* More TODOs
Fix the except keyword usage - the config would allow it, but it was
not enforced in the code.
Turns out that **FROM** was also not enforced, fix both, by (basically)
copying the code from Caddy.
Update the README and tests.
Locally test as well, shows that this works:
~~~
.:1053 {
proxy miek.nl 8.8.8.8:53 {
except a.miek.nl
}
proxy a.miek.nl 8.8.4.4:53
errors stdout
log stdout
}
~~~
And gives the desired results, not having a proxy line for `a.miek.nl`
results in a SERVFAIL (as expected).
Fixes#502
* middleware/proxy: absorb httpproxy
Move the httproxy into proxy. This adds and Exchanger interface which
is used to exchange the messages with the upstream.
The https_google upstream will re-resolve itself and update the upstream
hosts used every 300s.
* Remove and add TODO
* add cidrs opt
* remove state data from middleware object
* update k8s docs
* Add integration tests
* add unit tests for cidr and pods config
* more README fixes, separate dev notes
* adjust section headers
* fix typo
Adds a middleware to enable tracing with OpenTracing/OpenZipkin.
Enabling tracing will have a large impact on performance so it is
not advisable in production.
By defining and using an proxy.Exchanger interface we make the proxy
more generic and we can then fold back httproxy into proxy.
This overrides #463 and #473 and should make futures extensions rather
trivial
* Add docs that talk about `protocol` and how to set it.
* middleware/proxy: rename New to NewLookup
It's used as a Lookup mechanism not as a completely new proxy,
reflect that in the name.
* Set maxfails to 3 by default when looking up names.
Most of the changes have been copied
from https://github.com/johnbelamaric/coredns/pull/1/files
* dont require/allow "_" prefix for srv wildcard fields
* streamline parse/validation of req name
* removing nametemplate
* error when zone not found, loopify unit tests
