Now the output would be:
```
./coredns -version
CoreDNS-010
linux/amd64, go1.8, 241e3db
```
In case the local file has been modified, then the output would be (with --dirty):
```
./coredns -version
CoreDNS-010
linux/amd64, go1.8, 241e3db-dirty
```
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
The primary driver for autopath was kubernetes. It addresses a specific need in kubernetes, so it deserves a mention in the K8s README, with an example.
* 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
* 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
* 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>
* mw/k8s: remove dependence on global var
Remove the global coreDNSRecord that was used. Remove tests the
referenced that var. Cleanup the rest.
* Rename function as well
* fixes
* 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
* 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
Add some docs about normalize.Host and normalize.Name. They are used
correctly in the middleware even though they are somewhat confusing,
esp when you copy from ServerBlockKeys in your middleware.
* mw/kubernetes: fix parseTests
Make parse tests table driven to remove a duplicate code, i.e. most
of the contents of parse_test.go can be removed as well as the
expectString helper function.
* cleanup parse tests
* middleware/kubernetes: pull TXT out of parseRequest
Put the TXT handling one layer higher and remove it from parseRequest.
Also rename the podsvc field in there to podOrSvc. Now that it isn't
used anymore for TXT record (dns-version) that was put in there. We can
make this a boolean (in a future PR).
Make parseRequest get an optional Zone that is from state.Zone and use
that instead of its own code. Removed some tests and other smaller
cleanups.
Fixes#836
* add this reverse
* another check
* readd
* Rename to kPod and kService for some clarity
The current badge styles have 4 flat and 1 regular, which were
rather inconsistent. This fix changes to one style and matches
with Caddy.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Factor out as much of autopath into a subpackage as possible right now.
apw.Sent is not needed, we should see this from the rcode returned by
the middleware. See #852 on why this was needed.
Disable the tests for now as to not break the main build.
* Core: convert IP addresses to reverse zone
If we see IP/mask syntax and the mask mod 8 == 0 we assume a reverse
zone and convert to in-addr or .arpa.
* typos
* integration test
* Addr is not used
* core: clean up normalize
Create a SplitHostPort function that can be used both from normalize.go
and address.go. This removes some (not all!) duplication between the
both and makes it work with reverse address notations.
* More tests
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.
Add the DNS message response flags as {rflags} to the default logging
Also complete the replacer testing that is was commented out.
And (unrelated) Switch erratic and whoami to ease testing.
Note: {flags} could and should be added as well - but we can leave that
as a beginners bug.
Use the same OnStartup setup as in the file middleware. We need to copy
the variable from range, otherwise it gets overwriten in the next loop
because of the async goroutine call.
Hard to test, we have secondary_test.go which we could extend with
multiple zones for instance. For now this fix does not have an test case
with it...
Define two consts Pod and Svc, makes it stand out a little more
when used in switches in case.
We have opted for a new type, but then you need to convert them
all the time with string(Foo).
* Treat absence of port/service in SRV as wildcard
Normally, a SRV-request should have the form
_<service>._<port>.<name>.<zone>. The k8s peer-finder which is used for
bootstrapping by some applications will however query for SRV at
<name>.<zone>.
To compensate for this behaviour, treat the absence of _<service> and
_<port> as wildcards.
* Modified tests with new SRV behaviour
Added a testcase for a SRV request without port & service
Removed now valid query from invalidSRVQueries
* Forgot to run gofmt on test/kubernetes_test.go
