Move federation plugin to github.com/coredns/federation (#3139)

* Remove federation

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Rebuild and point to github.com/coredns/federation

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Export `localNodeName` => `LocalNodeName`, to be used by federation (until deprecation)

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Remove plugin/kubernetes/federation.go (=> kubernetes/federation repo)

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Update github.com/coredns/federation

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* sticker-ci fix

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

1 files changed, 0 insertions, 119 deletions

diff --git a/plugin/federation/federation_test.go b/plugin/federation/federation_test.go
deleted file mode 100644
index 64d6272b7..000000000
--- a/plugin/federation/federation_test.go
+++ /dev/null
@@ -1,119 +0,0 @@
-package federation
-
-import (
-	"context"
-	"testing"
-
-	"github.com/coredns/coredns/plugin/kubernetes"
-	"github.com/coredns/coredns/plugin/pkg/dnstest"
-	"github.com/coredns/coredns/plugin/test"
-
-	"github.com/miekg/dns"
-)
-
-func TestIsNameFederation(t *testing.T) {
-	tests := []struct {
-		fed          string
-		qname        string
-		expectedZone string
-	}{
-		{"prod", "nginx.mynamespace.prod.svc.example.com.", "nginx.mynamespace.svc.example.com."},
-		{"prod", "nginx.mynamespace.staging.svc.example.com.", ""},
-		{"prod", "nginx.mynamespace.example.com.", ""},
-		{"prod", "example.com.", ""},
-		{"prod", "com.", ""},
-	}
-
-	fed := New()
-	for i, tc := range tests {
-		fed.f[tc.fed] = "test-name"
-		if x, _ := fed.isNameFederation(tc.qname, "example.com."); x != tc.expectedZone {
-			t.Errorf("Test %d, failed to get zone, expected %s, got %s", i, tc.expectedZone, x)
-		}
-	}
-}
-
-func TestFederationKubernetes(t *testing.T) {
-	tests := []test.Case{
-		{
-			// service exists so we return the IP address associated with it.
-			Qname: "svc1.testns.prod.svc.cluster.local.", Qtype: dns.TypeA,
-			Rcode: dns.RcodeSuccess,
-			Answer: []dns.RR{
-				test.A("svc1.testns.prod.svc.cluster.local.      303       IN      A       10.0.0.1"),
-			},
-		},
-		{
-			// service does not exist, do the federation dance.
-			Qname: "svc0.testns.prod.svc.cluster.local.", Qtype: dns.TypeA,
-			Rcode: dns.RcodeSuccess,
-			Answer: []dns.RR{
-				test.CNAME("svc0.testns.prod.svc.cluster.local.  303       IN      CNAME   svc0.testns.prod.svc.fd-az.fd-r.federal.example."),
-			},
-		},
-	}
-
-	k := kubernetes.New([]string{"cluster.local."})
-	k.APIConn = &APIConnFederationTest{zone: "fd-az", region: "fd-r"}
-
-	fed := New()
-	fed.zones = []string{"cluster.local."}
-	fed.Federations = k.Federations
-	fed.Next = k
-	fed.f = map[string]string{
-		"prod": "federal.example.",
-	}
-
-	ctx := context.TODO()
-	for i, tc := range tests {
-		m := tc.Msg()
-
-		rec := dnstest.NewRecorder(&test.ResponseWriter{})
-		_, err := fed.ServeDNS(ctx, rec, m)
-		if err != nil {
-			t.Errorf("Test %d, expected no error, got %v", i, err)
-			return
-		}
-
-		resp := rec.Msg
-		if err := test.SortAndCheck(resp, tc); err != nil {
-			t.Error(err)
-		}
-	}
-}
-
-func TestFederationKubernetesMissingLabels(t *testing.T) {
-	tests := []test.Case{
-		{
-			// service does not exist, do the federation dance.
-			Qname: "svc0.testns.prod.svc.cluster.local.", Qtype: dns.TypeA,
-			Rcode: dns.RcodeSuccess,
-			Answer: []dns.RR{
-				test.CNAME("svc0.testns.prod.svc.cluster.local.  303       IN      CNAME   svc0.testns.prod.svc.fd-az.fd-r.federal.example."),
-			},
-		},
-	}
-
-	k := kubernetes.New([]string{"cluster.local."})
-	k.APIConn = &APIConnFederationTest{zone: "", region: ""}
-
-	fed := New()
-	fed.zones = []string{"cluster.local."}
-	fed.Federations = k.Federations
-	fed.Next = k
-	fed.f = map[string]string{
-		"prod": "federal.example.",
-	}
-
-	ctx := context.TODO()
-	for _, tc := range tests {
-		m := tc.Msg()
-
-		rec := dnstest.NewRecorder(&test.ResponseWriter{})
-		_, err := fed.ServeDNS(ctx, rec, m)
-		if err == nil {
-			t.Errorf("Expected an error")
-			return
-		}
-	}
-}