Mirrors/coredns
1
0
Fork 0
mirror of https://github.com/coredns/coredns.git synced 2025-11-02 02:03:13 -05:00
Code Issues Packages Projects Releases Wiki Activity

Adding wildcard support (#190)

Browse Source 
* Commenting out unused functions. TODO: remove when it is not needed

* Update README with namespace and template example

* Adding note about changing the record name format via a template

* Adding test scripts to automate k8s startup

* Automating k8s namespace creation

* Adding automation to start 4 k8s services

* Updating documentation for k8s tests

* Avoid downloading kubectl if already exists

* Adding debug statement when namespace is not exposed.

* Adding basic kubernetes integration tests

* Makefile now contains a "testk8s" target. This target requires k8s to
  be running.
* Adding test/kubernetes_test.go file with a couple of basic A record
  tests.

* Updating k8s integration tests to only run k8s integration tests

* Adding support for namespace wildcards

* Refactoring to move filtering logic to kubernetes.go file

* go fmt fixes

* Adding wildcard support for namespaces and service names

* Kubernetes integration tests updated for A records.
* Expanded record name assembly for answer section not yet implemented.
* Refactoring to focus k8sclient code just on accessing k8s API.
 Filtering now handled in kubernetes.go

* Adding wildcard test cases

* Adding skydns startup script. (To allow side by side testing of wildcards.)
* Commenting out record name assmebly based on NameTemplate. Need to improve template before this makes sense.

* Adding basic SRV integration tests

* Need to add verification for additional answer section

* Fixing comments and formatting

* Moving wildcard constants to vars

* Travis test execution appears to be failing on access to these
 constants

* Fixing access to util package

* Trying to work around Travis test bug

* Reverting to access kubernetes/util as "util"

Travis breakage is due to "Infoblox-CTO" in src path
This commit is contained in:
Michael Richmond
2016-07-14 14:50:14 -07:00
committed by Miek Gieben
parent 319d30697a
commit 3f4ec783d2
17 changed files with 527 additions and 67 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
middleware/kubernetes/README.md
View File

@@ -7,6 +7,7 @@ are constructed as "myservice.mynamespace.coredns.local" where:
* "mynamespace" is the k8s namespace for the service, and
* "coredns.local" is the zone configured for `kubernetes`.
The record name format can be changed by specifying a name template in the Corefile.
## Syntax
@@ -36,6 +37,10 @@ This is the default kubernetes setup, with everything specified in full:
kubernetes coredns.local {
# Use url for k8s API endpoint
endpoint http://localhost:8080
# Assemble k8s record names with the template
template {service}.{namespace}.{zone}
# Only expose the k8s namespace "demo"
namespaces demo
}
# cache 160 coredns.local
}
@@ -247,7 +252,7 @@ return the IP addresses for all services with "nginx" in the service name.
TBD:
* How does this relate the the k8s load-balancer configuration?
* Do wildcards search across namespaces?
* Do wildcards search across namespaces? (Yes)
* Initial implementation assumes that a namespace maps to the first DNS label
below the zone managed by the kubernetes middleware. This assumption may
need to be revised.
@@ -344,4 +349,5 @@ TBD:
and A-record queries. Automate testing with cache in place.
* Automate CoreDNS performance tests. Initially for zone files, and for
pre-loaded k8s API cache.
* Automate integration testing with kubernetes.
* Automate integration testing with kubernetes. (k8s launch and service start-up
automation is in middleware/kubernetes/tests)