1 files changed, 0 insertions, 81 deletions
diff --git a/plugin/etcd/stub.go b/plugin/etcd/stub.go
deleted file mode 100644
index 37e426ac4..000000000
--- a/plugin/etcd/stub.go
+++ /dev/null
@@ -1,81 +0,0 @@
-package etcd
-
-import (
-	"net"
-	"strconv"
-	"time"
-
-	"github.com/coredns/coredns/plugin/etcd/msg"
-	"github.com/coredns/coredns/plugin/pkg/dnsutil"
-	"github.com/coredns/coredns/plugin/proxy"
-	"github.com/coredns/coredns/request"
-
-	"github.com/miekg/dns"
-)
-
-// UpdateStubZones checks etcd for an update on the stubzones.
-func (e *Etcd) UpdateStubZones() {
-	go func() {
-		for {
-			e.updateStubZones()
-			time.Sleep(15 * time.Second)
-		}
-	}()
-}
-
-// Look in .../dns/stub/<zone>/xx for msg.Services. Loop through them
-// extract <zone> and add them as forwarders (ip:port-combos) for
-// the stub zones. Only numeric (i.e. IP address) hosts are used.
-// Only the first zone configured on e is used for the lookup.
-func (e *Etcd) updateStubZones() {
-	zone := e.Zones[0]
-
-	fakeState := request.Request{W: nil, Req: new(dns.Msg)}
-	fakeState.Req.SetQuestion(stubDomain+"."+zone, dns.TypeA)
-
-	services, err := e.Records(fakeState, false)
-	if err != nil {
-		return
-	}
-
-	stubmap := make(map[string]proxy.Proxy)
-	// track the nameservers on a per domain basis, but allow a list on the domain.
-	nameservers := map[string][]string{}
-
-Services:
-	for _, serv := range services {
-		if serv.Port == 0 {
-			serv.Port = 53
-		}
-		ip := net.ParseIP(serv.Host)
-		if ip == nil {
-			log.Warningf("Non IP address stub nameserver: %s", serv.Host)
-			continue
-		}
-
-		domain := msg.Domain(serv.Key)
-		labels := dns.SplitDomainName(domain)
-
-		// If the remaining name equals any of the zones we have, we ignore it.
-		for _, z := range e.Zones {
-			// Chop of left most label, because that is used as the nameserver place holder
-			// and drop the right most labels that belong to zone.
-			// We must *also* chop of dns.stub. which means cutting two more labels.
-			domain = dnsutil.Join(labels[1 : len(labels)-dns.CountLabel(z)-2]...)
-			if domain == z {
-				log.Warningf("Skipping nameserver for domain we are authoritative for: %s", domain)
-				continue Services
-			}
-		}
-		nameservers[domain] = append(nameservers[domain], net.JoinHostPort(serv.Host, strconv.Itoa(serv.Port)))
-	}
-
-	for domain, nss := range nameservers {
-		stubmap[domain] = proxy.NewLookup(nss)
-	}
-	// atomic swap (at least that's what we hope it is)
-	if len(stubmap) > 0 {
-		e.Stubmap = &stubmap
-	}
-	return
-}