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* mw/kubernetes: rewrite parseRequest
Stop looking at the qtype in parseRequest and make k.Namespace a map.
Fallout from this is that pkg/strings as it is not used anymore. Also
add a few helper functions to make unexposed namespaces easier to see in
the code.
Add wildcard tests to the middleware tests.
* Fix tests
Add a whole bunch of comments to document what we are trying to do.
* This is now answered
* up coverage
* duh
* Update testcase
* Make it nodata
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* core: hide registerHandler
Remove RegisterHandler and just make it implicit when we look at the
handler compilation step.
* Rename GetHandler to just Handler
Update callers and make auto check Hander in OnStartup.
* Up test coverage in erratic
* up test coverage
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* mw/federaration
This PR add the federation back as a middleware to keep it more
contained from the main kubernetes code.
It also makes parseRequest less import and pushes this functionlity down
in the k.Entries. This minimizes (or tries to) the importance for the
qtype in the query. In the end the qtype checking should only happen
in ServeDNS - but for k8s this might proof difficult.
Numerous other cleanup in code and kubernetes tests.
* up test coverage
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* mw/kubernetes: reverse zone in ZONE stanza not parsed
Properly parse the reverse zone syntax in the ZONES stanza as promised
in the README.
As short test case to test.
* add test
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* mw/kubernetes: remove federation and cidr
Remove both as we have a corefile syntax change that handles cidr and
remove federation because that is going to be its own middleware.
* backwards incompat changes
This PR:
* removes cidr from kubernetes (core Corefile feature now)
* removes federation from kubernets (comes back as new middleware)
* [remove autopath - which was already gone, so that already was
backwards incompat]
* adds `fallthrough` to the *etcd* middleware and makes you enable it.
* Fail on unknown properties
* documentation
* Disable TestHealthCheck as it uses realtime and fails
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* mw/k8s: cleanups
Remove some constants that aren't used any more. Make PrimaryZone
private because it doesn't need to be exported. Remove test that
did not cover corner case as expressed in setup.go
* cleanup this as well
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* mw/k8s: Test Federation parsing
The test case was there, but there was nothing testing it?!?!?!
Add it and split it out of the main setup test which is too long
already.
Also allow kubernetes a not have a ZONE, just default to the serverblock
in that case. Remove test that was blocking that.
Cleanup up the readme more.
* rewrite README
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servers (#820)
* Support multiple k8s api servers specification and load balance among api servers
This fix adds supports for multiple k8s api servers specification,
load balance among api servers.
When two or more api servers are specified in kubernetes block (endpoint ...),
a proxy is created locally (with randomly generately port). The coredns
will points to the generated proxy so that load balancing could be achieved.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* Setup initial healthcheck at the beginning
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* Update README.md for kubernetes middleware and remove whitespaces.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
* Use middleware/pkg/healthcheck in middleware/kubernetes
for api proxy
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
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* core: replace GetMiddleware
See the discussion in #881. GetMiddleware would add a `nil` middleware
to the callstack thereby breaking functionality.
This PR drops it in favor of RegisterHandler which is a completely
standalone registry for middleware that want to let it self know to
other middleware.
Currenly *autopath* uses this to call *kubernetes*'s AutoPath method
for dynamic autopathing.
* Drop GetMiddleware
* Register metrics
* drop the panic
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Only use was in k8s middleware; no tests other than subzone_test.go
existed; not exercised: remove.
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* middleware/authpath: Fix return from k8s mw
Return the correct search path from the kubernetes' AutoPath function.
Based on preliminary discussion in #870
* PodWithIP can be private
Fix and add docs to functions.
* CR: remove the error from AutoPathFunc
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Call out to kubernetes to get the search path - this still needs
to return something sensible, but all infrastructure has landed
to make it work.
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autopath as middleware
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Add log statement pointing to replacement.
remove cidr from README and use replacement syntax.
Fixes #851
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Put the autopath stuff in a separate sub package. Tests are still
included in the main kubernetes directory.
Next steps (after this is merged), is pulling the autopath handling
into the subpackage and fixing the tests.
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* kubernetes/reverse: remove deadcode
* deadcode in errors and kubernetes removed
* unnecessary conversion
* constants
* proxy: time.Since()
* simplications
* static check
* Disable test/external_test
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Drop the interfaceAddr interfaces and just use a function. Cleanup
all fallout from that. Remove the use of global variables and cleanup
the tests a bit.
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* 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
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* 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.
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* 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.
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* 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
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* Add external service cnames
* remove cruft
* update CI k8s version
* change CI k8s version
* min k8s ver for ext services
* trying k8s 1.5
* k8s 1.5 requires ports spec
* remove kruft
* update dns schema version
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* commit for testing in cluster
* commit for testing in cluster
* refactor and add ns.dns record
* Release 007
* reduce heap allocations
* gofmt
* revert accidental Makefile commits
* restore prior rcode for disabled pod mode
* revert Makefile deltas
* add unit tests
* more unit tests
* make isRequestInReverseRange easier to test
* more unit tests
* addressing review feedback
* commit setup.go
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* Add fallthrough support for Kubernetes
This enables registering other services in the same zone as
Kubernetes services. This also re-orders the middleware chain
so that Kubernetes comes before other types, in order to make
this work out-of-the-box.
* Remove extra line
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* linter fixes
* Golint and format code
* fmt
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(#547)
This fix fixes import path from
`github.com/miekg/coredns`
->
`github.com/coredns/coredns`
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* 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
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* add cidrs opt
* remove state data from middleware object
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* Add pod cache and verified pod responses
* add ip indexing for pod cache
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* dont require/allow "_" prefix for srv wildcard fields
* streamline parse/validation of req name
* removing nametemplate
* error when zone not found, loopify unit tests
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Change the CI setup for K8s to be simpler. Now it just creates a
set of objects via a yaml file, making it very easy to modify
the tests.
Implement PTR for services.
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* Fix k8s client to use client-go
* Fix Kubernetes Build Issue
The client-go code requires you to vendor. I have done a hack here
in the Makefile to vendor it to version 1.5. But looks like we
will need to do this the 'right' way soon.
* Convert v1 to api Objects in List Functions
Also removed the endpoint controller which was not used for anything.
The Watch functions may still need the same treatment.
* Vendor client-go release-1.5
* Fix basic SRV feature
This is actually not serving SRV records correctly, but this should
get it to work as it did prior to the k8s client changes. Another
fix will be needed to serve SRV records as defined in the spec.
* Add additional output in test result
Add the response to the test output.
* Fix erroneous test data
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Go vet and golint the new code once again.
Drop Name from NameTemplate - it's cleaner: nametemplate.Template.
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* Added TLS to k8s client
Added options for TLS kubernetes client connection.
* Fix k8s TLS config option parsing
Brings config option parsing for kubernetes TLS in line with recent changes.
* Put TLS config on one line
Put kubernetes tls config on one line to match style established in etcd tls config.
* Add tls option to README
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Cleanup the errors and removed deadcode along the way. The leaves
some error laying around, mostly about commenting exported identifier.
We should look hard if those really are needed.
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For some reasons there was a dnsserver/middleware.go that defined
the middleware handlers. This code was a repeat from
middleware/middleware.go. Removed dnsserver/middleware.go and replaced
all uses of dnsserver.Middleware with middleware.Middleware.
Added dnsserver/address_test.go to test the zone normalization (and to
improve the test coverage). The deleted file will also improve the test
coverage :)
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Stop the caddy message and start our own init notifications.
Log the version of CoreDNS when starting up.
Fix all middleware's setup functions so that return the error prefixed
with *which* middleware was failing; leads to better debuggable errors
when starting up.
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Move all (almost all) Go files in middleware into their
own packages. This makes for better naming and discoverability.
Lot of changes elsewhere to make this change.
The middleware.State was renamed to request.Request which is better,
but still does not cover all use-cases. It was also moved out middleware
because it is used by `dnsserver` as well.
A pkg/dnsutil packages was added for shared, handy, dns util functions.
All normalize functions are now put in normalize.go
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* Make CoreDNS a server type plugin for Caddy
Remove code we don't need and port all middleware over. Fix all tests
and rework the documentation.
Also make `go generate` build a caddy binary which we then copy into
our directory. This means `go build`-builds remain working as-is.
And new etc instances in each etcd test for better isolation.
Fix more tests and rework test.Server with the newer support Caddy offers.
Fix Makefile to support new mode of operation.
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Miek Gieben
Yong Tang
Chris O'Haver
John Belamaric
Yong Tang
Chris O'Haver
Manuel de Brito Fontes
