This demo plugin showcases the implementation of source IP based service discovery. It is intended as a boilerplate code, so that anyone that is interested in coredns implementation could build their plugin on top of this demo plugin.
This demo plugin and its full code has been walked through in past KubeCon talks
Note: In order to add a new plugin, an additional step of
make gen is needed. Therefore,
to build the coredns with demo plugin the following should be used:
docker run -it --rm -v $PWD:/v -w /v golang:1.16 sh -c 'make gen && make'
See the manual.