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

1 files changed, 0 insertions, 65 deletions

diff --git a/middleware/kubernetes/ns.go b/middleware/kubernetes/ns.go
deleted file mode 100644
index 4cacc382f..000000000
--- a/middleware/kubernetes/ns.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package kubernetes
-
-import (
-	"net"
-	"strings"
-
-	"github.com/miekg/dns"
-	"k8s.io/client-go/1.5/pkg/api"
-)
-
-func isDefaultNS(name, zone string) bool {
-	return strings.Index(name, defaultNSName) == 0 && strings.Index(name, zone) == len(defaultNSName)
-}
-
-func (k *Kubernetes) nsAddr() *dns.A {
-	var (
-		svcName      string
-		svcNamespace string
-	)
-
-	rr := new(dns.A)
-	localIP := k.interfaceAddrsFunc()
-	endpointsList := k.APIConn.EndpointsList()
-
-	rr.A = localIP
-
-FindEndpoint:
-	for _, ep := range endpointsList.Items {
-		for _, eps := range ep.Subsets {
-			for _, addr := range eps.Addresses {
-				if localIP.Equal(net.ParseIP(addr.IP)) {
-					svcNamespace = ep.ObjectMeta.Namespace
-					svcName = ep.ObjectMeta.Name
-					break FindEndpoint
-				}
-			}
-		}
-	}
-
-	if len(svcName) == 0 {
-		rr.Hdr.Name = defaultNSName
-		rr.A = localIP
-		return rr
-	}
-	// Find service to get ClusterIP
-	serviceList := k.APIConn.ServiceList()
-
-FindService:
-	for _, svc := range serviceList {
-		if svcName == svc.Name && svcNamespace == svc.Namespace {
-			if svc.Spec.ClusterIP == api.ClusterIPNone {
-				rr.A = localIP
-			} else {
-				rr.A = net.ParseIP(svc.Spec.ClusterIP)
-			}
-			break FindService
-		}
-	}
-
-	rr.Hdr.Name = strings.Join([]string{svcName, svcNamespace, "svc."}, ".")
-
-	return rr
-}
-
-const defaultNSName = "ns.dns."