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package kubernetes
import (
"testing"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
"golang.org/x/net/context"
meta "k8s.io/apimachinery/pkg/apis/meta/v1"
api "k8s.io/client-go/pkg/api/v1"
)
type APIConnReverseTest struct{}
func (APIConnReverseTest) HasSynced() bool { return true }
func (APIConnReverseTest) Run() { return }
func (APIConnReverseTest) Stop() error { return nil }
func (APIConnReverseTest) PodIndex(string) []*api.Pod { return nil }
func (APIConnReverseTest) SvcIndex(string) []*api.Service { return nil }
func (APIConnReverseTest) EpIndex(string) []*api.Endpoints { return nil }
func (APIConnReverseTest) EndpointsList() []*api.Endpoints { return nil }
func (APIConnReverseTest) ServiceList() []*api.Service { return nil }
func (APIConnReverseTest) SvcIndexReverse(ip string) []*api.Service {
if ip != "192.168.1.100" {
return nil
}
svcs := []*api.Service{
{
ObjectMeta: meta.ObjectMeta{
Name: "svc1",
Namespace: "testns",
},
Spec: api.ServiceSpec{
ClusterIP: "192.168.1.100",
Ports: []api.ServicePort{{
Name: "http",
Protocol: "tcp",
Port: 80,
}},
},
},
}
return svcs
}
func (APIConnReverseTest) EpIndexReverse(ip string) []*api.Endpoints {
if ip != "10.0.0.100" {
return nil
}
eps := []*api.Endpoints{
{
Subsets: []api.EndpointSubset{
{
Addresses: []api.EndpointAddress{
{
IP: "10.0.0.100",
Hostname: "ep1a",
},
},
Ports: []api.EndpointPort{
{
Port: 80,
Protocol: "tcp",
Name: "http",
},
},
},
},
ObjectMeta: meta.ObjectMeta{
Name: "svc1",
Namespace: "testns",
},
},
}
return eps
}
func (APIConnReverseTest) GetNodeByName(name string) (*api.Node, error) {
return &api.Node{
ObjectMeta: meta.ObjectMeta{
Name: "test.node.foo.bar",
},
}, nil
}
func (APIConnReverseTest) GetNamespaceByName(name string) (*api.Namespace, error) {
return &api.Namespace{
ObjectMeta: meta.ObjectMeta{
Name: name,
},
}, nil
}
func TestReverse(t *testing.T) {
k := New([]string{"cluster.local.", "0.10.in-addr.arpa.", "168.192.in-addr.arpa."})
k.APIConn = &APIConnReverseTest{}
tests := []test.Case{
{
Qname: "100.0.0.10.in-addr.arpa.", Qtype: dns.TypePTR,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.PTR("100.0.0.10.in-addr.arpa. 303 IN PTR ep1a.svc1.testns.svc.cluster.local."),
},
},
{
Qname: "100.1.168.192.in-addr.arpa.", Qtype: dns.TypePTR,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.PTR("100.1.168.192.in-addr.arpa. 303 IN PTR svc1.testns.svc.cluster.local."),
},
},
{
Qname: "101.0.0.10.in-addr.arpa.", Qtype: dns.TypePTR,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("0.10.in-addr.arpa. 300 IN SOA ns.dns.0.10.in-addr.arpa. hostmaster.0.10.in-addr.arpa. 1502782828 7200 1800 86400 60"),
},
},
{
Qname: "example.org.cluster.local.", Qtype: dns.TypePTR,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502989566 7200 1800 86400 60"),
},
},
}
ctx := context.TODO()
for i, tc := range tests {
r := tc.Msg()
w := dnstest.NewRecorder(&test.ResponseWriter{})
_, err := k.ServeDNS(ctx, w, r)
if err != tc.Error {
t.Errorf("Test %d: expected no error, got %v", i, err)
return
}
resp := w.Msg
if resp == nil {
t.Fatalf("Test %d: got nil message and no error for: %s %d", i, r.Question[0].Name, r.Question[0].Qtype)
}
test.SortAndCheck(t, resp, tc)
}
}
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