$ git clone github.com/coredns/coredns
$ cd coredns
# append "containerd:github.com/soylent-io/coredns-containerd/containerd" after kubernetes entry in plugin.cfg
$ make
Building docker image
In coredns/ directory with "coredns" built:
$ mkdir -p build/docker/amd64
$ cp -a coredns build/docker/amd64
$ make -f Makefile.docker DOCKER=soylentio LINUX_ARCH=amd64 VERSION=1.11.3-1 docker-build