mirror of
https://github.com/coredns/coredns.git
synced 2025-11-04 03:03:14 -05:00
240 lines
7.4 KiB
Go
240 lines
7.4 KiB
Go
package external
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import (
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"context"
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"testing"
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"github.com/coredns/coredns/plugin/kubernetes"
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"github.com/coredns/coredns/plugin/kubernetes/object"
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"github.com/coredns/coredns/plugin/pkg/dnstest"
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"github.com/coredns/coredns/plugin/test"
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"github.com/coredns/coredns/request"
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"github.com/miekg/dns"
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api "k8s.io/api/core/v1"
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meta "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func TestExternal(t *testing.T) {
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k := kubernetes.New([]string{"cluster.local."})
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k.Namespaces = map[string]struct{}{"testns": {}}
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k.APIConn = &external{}
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e := New()
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e.Zones = []string{"example.com."}
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e.Next = test.NextHandler(dns.RcodeSuccess, nil)
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e.externalFunc = k.External
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e.externalAddrFunc = externalAddress // internal test function
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ctx := context.TODO()
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for i, tc := range tests {
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r := tc.Msg()
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w := dnstest.NewRecorder(&test.ResponseWriter{})
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_, err := e.ServeDNS(ctx, w, r)
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if err != tc.Error {
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t.Errorf("Test %d expected no error, got %v", i, err)
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return
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}
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if tc.Error != nil {
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continue
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}
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resp := w.Msg
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if resp == nil {
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t.Fatalf("Test %d, got nil message and no error for %q", i, r.Question[0].Name)
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}
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if err = test.SortAndCheck(resp, tc); err != nil {
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t.Error(err)
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}
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}
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}
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var tests = []test.Case{
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// A Service
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{
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Qname: "svc1.testns.example.com.", Qtype: dns.TypeA, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc1.testns.example.com. 5 IN A 1.2.3.4"),
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},
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},
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{
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Qname: "svc1.testns.example.com.", Qtype: dns.TypeSRV, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("svc1.testns.example.com. 5 IN SRV 0 100 80 svc1.testns.example.com.")},
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Extra: []dns.RR{test.A("svc1.testns.example.com. 5 IN A 1.2.3.4")},
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},
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// SRV Service Not udp/tcp
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{
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Qname: "*._not-udp-or-tcp.svc1.testns.example.com.", Qtype: dns.TypeSRV, Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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// SRV Service
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{
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Qname: "_http._tcp.svc1.testns.example.com.", Qtype: dns.TypeSRV, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.SRV("_http._tcp.svc1.testns.example.com. 5 IN SRV 0 100 80 svc1.testns.example.com."),
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},
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Extra: []dns.RR{
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test.A("svc1.testns.example.com. 5 IN A 1.2.3.4"),
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},
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},
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// AAAA Service (with an existing A record, but no AAAA record)
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{
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Qname: "svc1.testns.example.com.", Qtype: dns.TypeAAAA, Rcode: dns.RcodeSuccess,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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// AAAA Service (non-existing service)
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{
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Qname: "svc0.testns.example.com.", Qtype: dns.TypeAAAA, Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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// A Service (non-existing service)
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{
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Qname: "svc0.testns.example.com.", Qtype: dns.TypeA, Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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// A Service (non-existing namespace)
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{
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Qname: "svc0.svc-nons.example.com.", Qtype: dns.TypeA, Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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// AAAA Service
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{
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Qname: "svc6.testns.example.com.", Qtype: dns.TypeAAAA, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.AAAA("svc6.testns.example.com. 5 IN AAAA 1:2::5"),
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},
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},
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// SRV
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{
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Qname: "_http._tcp.svc6.testns.example.com.", Qtype: dns.TypeSRV, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.SRV("_http._tcp.svc6.testns.example.com. 5 IN SRV 0 100 80 svc6.testns.example.com."),
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},
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Extra: []dns.RR{
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test.AAAA("svc6.testns.example.com. 5 IN AAAA 1:2::5"),
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},
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},
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// SRV
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{
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Qname: "svc6.testns.example.com.", Qtype: dns.TypeSRV, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.SRV("svc6.testns.example.com. 5 IN SRV 0 100 80 svc6.testns.example.com."),
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},
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Extra: []dns.RR{
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test.AAAA("svc6.testns.example.com. 5 IN AAAA 1:2::5"),
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},
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},
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{
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Qname: "testns.example.com.", Qtype: dns.TypeA, Rcode: dns.RcodeSuccess,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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{
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Qname: "testns.example.com.", Qtype: dns.TypeSOA, Rcode: dns.RcodeSuccess,
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Ns: []dns.RR{
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test.SOA("example.com. 5 IN SOA ns1.dns.example.com. hostmaster.example.com. 1499347823 7200 1800 86400 5"),
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},
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},
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{
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Qname: "svc11.testns.example.com.", Qtype: dns.TypeA, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc11.testns.example.com. 5 IN A 1.2.3.4"),
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},
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},
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{
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Qname: "svc12.testns.example.com.", Qtype: dns.TypeA, Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.CNAME("svc12.testns.example.com. 5 IN CNAME dummy.hostname"),
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},
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},
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}
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type external struct{}
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func (external) HasSynced() bool { return true }
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func (external) Run() {}
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func (external) Stop() error { return nil }
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func (external) EpIndexReverse(string) []*object.Endpoints { return nil }
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func (external) SvcIndexReverse(string) []*object.Service { return nil }
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func (external) Modified() int64 { return 0 }
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func (external) EpIndex(s string) []*object.Endpoints { return nil }
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func (external) EndpointsList() []*object.Endpoints { return nil }
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func (external) GetNodeByName(ctx context.Context, name string) (*api.Node, error) { return nil, nil }
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func (external) SvcIndex(s string) []*object.Service { return svcIndexExternal[s] }
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func (external) PodIndex(string) []*object.Pod { return nil }
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func (external) GetNamespaceByName(name string) (*api.Namespace, error) {
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return &api.Namespace{
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ObjectMeta: meta.ObjectMeta{
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Name: name,
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},
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}, nil
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}
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var svcIndexExternal = map[string][]*object.Service{
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"svc1.testns": {
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{
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Name: "svc1",
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Namespace: "testns",
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Type: api.ServiceTypeClusterIP,
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ClusterIP: "10.0.0.1",
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ExternalIPs: []string{"1.2.3.4"},
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Ports: []api.ServicePort{{Name: "http", Protocol: "tcp", Port: 80}},
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},
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},
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"svc6.testns": {
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{
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Name: "svc6",
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Namespace: "testns",
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Type: api.ServiceTypeClusterIP,
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ClusterIP: "10.0.0.3",
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ExternalIPs: []string{"1:2::5"},
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Ports: []api.ServicePort{{Name: "http", Protocol: "tcp", Port: 80}},
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},
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},
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"svc11.testns": {
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{
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Name: "svc11",
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Namespace: "testns",
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Type: api.ServiceTypeLoadBalancer,
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ExternalIPs: []string{"1.2.3.4"},
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Ports: []api.ServicePort{{Name: "http", Protocol: "tcp", Port: 80}},
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},
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},
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"svc12.testns": {
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{
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Name: "svc12",
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Namespace: "testns",
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Type: api.ServiceTypeLoadBalancer,
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ExternalIPs: []string{"dummy.hostname"},
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Ports: []api.ServicePort{{Name: "http", Protocol: "tcp", Port: 80}},
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},
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},
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}
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func (external) ServiceList() []*object.Service {
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var svcs []*object.Service
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for _, svc := range svcIndexExternal {
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svcs = append(svcs, svc...)
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}
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return svcs
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}
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func externalAddress(state request.Request) []dns.RR {
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a := test.A("example.org. IN A 127.0.0.1")
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return []dns.RR{a}
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}
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