Commit graph

33 commits

Author SHA1 Message Date
Miek Gieben
22c6e3e179
plugins: set upstream unconditionally (#2956)
`upstream` is not needed as a setting; just set if unconditionally and
remove all documentation and tests for it.

At some point we want remove the hanlding for `upstream` as well and
error out on seeing it.

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-07-02 16:23:47 +01:00
John Belamaric
2418a6b2d2
plugin/kubernetes: Disable resync by default (#2752)
* Disable resync by default

* Document default resync
2019-04-02 14:55:25 -07:00
John Belamaric
aea98acf2f
Bump the resync period to five hours (#2748) 2019-04-01 16:24:55 -07:00
Matt Greenfield
a3dd8cdf8d Add namespace_labels configuration for kubernetes plugin (#2707) 2019-03-22 14:32:40 +00:00
Yong Tang
162c3dd95d Remove proxy from kubernetes file (#2668)
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2019-03-11 19:47:29 +00:00
Guy Templeton
39cf482348 Set klog's logtostderr flag (#2529)
* Parse as well as  setlogtostderr flag

* Enforce setting of logtostderr for klog

* Clearup comment on klog
2019-02-07 07:33:30 +00:00
Yong Tang
7bd6855155
Deprecate multiple endpoints for out-of-cluster k8s api (#2454)
This fix deprecates endpoints for out-of-cluster k8s api,
The Corefile still takes multiple endpoints though only
the first one is used. A warning is shown if there are
multiple endpoints.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2019-01-13 10:09:51 -08:00
Miek Gieben
9c16ed1d14
Default to upstream to self (#2436)
* Default to upstream to self

This is a backwards incompatible change.

This is a massive (cleanup) PR where we default to resolving external
names by the coredns process itself, instead of directly forwarding them
to some upstream.

This ignores any arguments `upstream` may have had and makes it depend
on proxy/forward configuration in the Corefile. This allows resolved
upstream names to be cached and we have better healthchecking of the
upstreams. It also means there is only one way to resolve names, by
either using the proxy or forward plugin.

The proxy/forward lookup.go functions have been removed. This also
lessen the dependency on proxy, meaning deprecating proxy will become
easier. Some tests have been removed as well, or moved to the top-level
test directory as they now require a full coredns process instead of
just the plugin.

For the etcd plugin, the entire StubZone resolving is *dropped*! This
was a hacky (but working) solution to say the least. If someone cares
deeply it can be brought back (maybe)?

The pkg/upstream is now very small and almost does nothing. Also the
New() function was changed to return a pointer to upstream.Upstream. It
also returns only one parameter, so any stragglers using it will
encounter a compile error.

All documentation has been adapted. This affected the following plugins:
* etcd
* file
* auto
* secondary
* federation
* template
* route53

A followup PR will make any upstream directives with arguments an error,
right now they are ignored.

Signed-off-by: Miek Gieben <miek@miek.nl>

* Fix etcd build - probably still fails unit test

Signed-off-by: Miek Gieben <miek@miek.nl>

* Slightly smarter lookup check in upstream

Signed-off-by: Miek Gieben <miek@miek.nl>

* Compilez

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-01-13 16:54:49 +00:00
Yong Tang
53d1afbaf2
Error out when multiple https endpoints are specified. (#2438)
This fix will error out when multiple https endpoints are specified,
as additional work is needed to support beyond http.

This fix fixes 1464.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2019-01-07 09:28:03 -08:00
Miek Gieben
95546dfdfe plugin/kubernetes: smaller map (#2383)
* plugin/kubernetes: smaller map

to continue with a theme: the map[string]bool can be reduced
to map[string]struct{} to reduce a tiny amount of memory.

Signed-off-by: Miek Gieben <miek@miek.nl>

* fix tests

Signed-off-by: Miek Gieben <miek@miek.nl>
2018-12-08 15:40:07 -08:00
Chris O'Haver
41c5cf4424
allow ttl 0 (#2348) 2018-11-30 13:05:49 -05:00
Kevin Nisbet
6539a10a62 Unblock startup if kubernetes API is unavailable (#2126) 2018-10-22 09:30:08 -04:00
John Belamaric
1018a8267a Add Kubernetes auth providers (#2147)
* Import auth providers for K8s

* Vendor updates for K8s auth providers

* Remove Azure since it is not compiling

* Update vendor to remove Azure dependencies
2018-10-02 18:50:35 +01:00
Zach Eddy
fe5c731047 Support for kubeconfig files (#2053)
* Add support for authentication with kubeconfig files

* Update k8s plugin documentation

* Fix whitespace in README and tests

* Use clientcmd package to load kubeconfig file
2018-09-28 12:18:55 -07:00
Miek Gieben
177e32b62e plugin/forward: add REFUSED test (#1878)
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.
2018-06-15 08:12:56 -07:00
darkweaver87
003e104fca ADD ignoreemptyservice option for kubernetes plugin (#1813)
* ADD: ignoreemptyservice option for kubernetes plugin

* Modify documentation and rename option to add space

* UPD: Add unit tests

* UPD: gofmt

* Add unit test for ignore emptyservice

* gofmt

* xfr tests failed

* Rename emptyservice to empty_service
2018-05-23 08:57:59 -04:00
Miek Gieben
12b2ff9740
Use logging (#1718)
* 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
2018-04-22 21:40:33 +01:00
Miek Gieben
95342dfaad
plugin/kubernetes: make glog log to standard output (#1598)
Jump through all the hoops to make this work.
2018-03-09 19:55:43 +00:00
Miek Gieben
f697b33283
return an error for multiple use of some plugins (#1559)
* plugins: Return error for multiple use of some

Return plugin.ErrOnce when a plugin that doesn't support it, is called
mutliple times.

This now adds it for: cache, dnssec, errors, forward, hosts, nsid.
And changes it slightly in kubernetes, pprof, reload, root.

* more tests
2018-02-28 18:16:05 -08:00
Miek Gieben
928de738dd
Rename reverse zone constants (#1568)
Rename the constants to IP4arpa and IP6arpa (shorter and exported) and
make IsReverse return the type of the reverse zone which could be handy
for some callers.

Also add tests for IsReverse()
2018-02-28 08:43:19 -08:00
Chris O'Haver
9719a47c1b plugin/kubernetes: Add noendpoints option (#1536)
* add noendpoints option

* go fmt
2018-02-16 11:05:52 -05:00
Chris O'Haver
71ee323651 plugin/kubernetes: Add upstream @self and loop count (#1484)
* add upstream @self and loop count

* 1st round of feedback

* allow argless upstream

* update test

* readmes

* feedback
2018-02-14 21:11:26 +01:00
Chris O'Haver
ca5097ca13 reqd changes (#1522) 2018-02-12 14:27:16 -05:00
Brad Beam
6fd954f19c support for zone transfer for kubernetes (#1259)
* 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
2018-02-08 16:11:04 +00:00
Chris O'Haver
82854bf098 plugin/kubernetes: Allow only one k8s section (#1497)
* allow only one k8s section

* add test
2018-02-07 16:31:08 +00:00
Miek Gieben
399073ec6b pl/kubernetes: drop the comma parsing (#1453)
Let caddyfile parser give us the token, the comma sep thing also didn't
work.

Fixes #1446
2018-01-28 08:40:10 -08:00
John Belamaric
c59f5f6e86
Simplify plugin/pkg/fall (#1358)
* Simplify plugin/pkg/fall

* Remove unused import

* Fix fall_test

* Get fall coverage to 100% just because

* gofmt. sigh.
2018-01-07 14:51:32 -05:00
Miek Gieben
c6febe6250
Add pkg/fall for Fallthrough (#1355)
* 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.
2018-01-07 16:32:59 +00:00
John Belamaric
84ebbbc722
kubernetes: Add zone filtering to fallthrough (#1353)
* Add zone filtering to fallthrough

* Doh. gofmt

* Update documentation
2018-01-06 14:52:09 -05:00
Brian Akins
3527be6c00 Add option to use pod name rather than IP address for Kubernetes (#1190)
Change to use a new 'endpoints' directive and use a constant

Add initial docs for 'endpoints' directive

Add tests to Kubernetes setup for endpoints

Changes based on PR feedback

endpoint_pod_names is a boolean config option. Chahanged docs to reflect this.

Add a test when endpoints_pod_names is not set

Update README.md

Remove endpointNameModeName as it is no longer used
2017-11-08 08:07:10 -05:00
Miek Gieben
d64b684831 plugin/kubernetes: implement HasSynced() (#1155)
* plugin/kubernetes: wait until api is ready

Wait for HasSynced before allowing startup to avoid startup race.

Also do a small refactor in findServices() to pull a check out of the
loop - only needs to be done once.

* sigh
2017-10-20 22:53:17 +01:00
Chris O'Haver
4b3a430ff2 plugin/kubernetes: Enable protobuf, Update client api package (#1114)
* vendor

* code
2017-09-29 15:58:50 -04:00
Miek Gieben
d8714e64e4 Remove the word middleware (#1067)
* 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
2017-09-14 09:36:06 +01:00
Renamed from middleware/kubernetes/setup.go (Browse further)