mirror of
https://github.com/coredns/coredns.git
synced 2025-11-04 03:03:14 -05:00
7263808fe1
Implement transfer for k8s_external. Notifies not supported. Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
367 lines
10 KiB
Go
367 lines
10 KiB
Go
package kubernetes
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
"testing"
|
|
|
|
"github.com/coredns/coredns/plugin"
|
|
"github.com/coredns/coredns/plugin/kubernetes/object"
|
|
"github.com/coredns/coredns/request"
|
|
|
|
"github.com/miekg/dns"
|
|
api "k8s.io/api/core/v1"
|
|
meta "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
)
|
|
|
|
func TestEndpointHostname(t *testing.T) {
|
|
var tests = []struct {
|
|
ip string
|
|
hostname string
|
|
expected string
|
|
podName string
|
|
endpointNameMode bool
|
|
}{
|
|
{"10.11.12.13", "", "10-11-12-13", "", false},
|
|
{"10.11.12.13", "epname", "epname", "", false},
|
|
{"10.11.12.13", "", "10-11-12-13", "hello-abcde", false},
|
|
{"10.11.12.13", "epname", "epname", "hello-abcde", false},
|
|
{"10.11.12.13", "epname", "epname", "hello-abcde", true},
|
|
{"10.11.12.13", "", "hello-abcde", "hello-abcde", true},
|
|
}
|
|
for _, test := range tests {
|
|
result := endpointHostname(object.EndpointAddress{IP: test.ip, Hostname: test.hostname, TargetRefName: test.podName}, test.endpointNameMode)
|
|
if result != test.expected {
|
|
t.Errorf("Expected endpoint name for (ip:%v hostname:%v) to be '%v', but got '%v'", test.ip, test.hostname, test.expected, result)
|
|
}
|
|
}
|
|
}
|
|
|
|
type APIConnServiceTest struct{}
|
|
|
|
func (APIConnServiceTest) HasSynced() bool { return true }
|
|
func (APIConnServiceTest) Run() {}
|
|
func (APIConnServiceTest) Stop() error { return nil }
|
|
func (APIConnServiceTest) PodIndex(string) []*object.Pod { return nil }
|
|
func (APIConnServiceTest) SvcIndexReverse(string) []*object.Service { return nil }
|
|
func (APIConnServiceTest) EpIndexReverse(string) []*object.Endpoints { return nil }
|
|
func (APIConnServiceTest) Modified(bool) int64 { return 0 }
|
|
|
|
func (APIConnServiceTest) SvcIndex(string) []*object.Service {
|
|
svcs := []*object.Service{
|
|
{
|
|
Name: "svc1",
|
|
Namespace: "testns",
|
|
ClusterIPs: []string{"10.0.0.1"},
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
{
|
|
Name: "svc-dual-stack",
|
|
Namespace: "testns",
|
|
ClusterIPs: []string{"10.0.0.2", "10::2"},
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
{
|
|
Name: "hdls1",
|
|
Namespace: "testns",
|
|
ClusterIPs: []string{api.ClusterIPNone},
|
|
},
|
|
{
|
|
Name: "external",
|
|
Namespace: "testns",
|
|
ExternalName: "coredns.io",
|
|
Type: api.ServiceTypeExternalName,
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
}
|
|
return svcs
|
|
}
|
|
|
|
func (APIConnServiceTest) ServiceList() []*object.Service {
|
|
svcs := []*object.Service{
|
|
{
|
|
Name: "svc1",
|
|
Namespace: "testns",
|
|
ClusterIPs: []string{"10.0.0.1"},
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
{
|
|
Name: "svc-dual-stack",
|
|
Namespace: "testns",
|
|
ClusterIPs: []string{"10.0.0.2", "10::2"},
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
{
|
|
Name: "hdls1",
|
|
Namespace: "testns",
|
|
ClusterIPs: []string{api.ClusterIPNone},
|
|
},
|
|
{
|
|
Name: "external",
|
|
Namespace: "testns",
|
|
ExternalName: "coredns.io",
|
|
Type: api.ServiceTypeExternalName,
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
}
|
|
return svcs
|
|
}
|
|
|
|
func (APIConnServiceTest) EpIndex(string) []*object.Endpoints {
|
|
eps := []*object.Endpoints{
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.1", Hostname: "ep1a"},
|
|
},
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "svc1-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("svc1", "testns"),
|
|
},
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.2"},
|
|
},
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "hdls1-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("hdls1", "testns"),
|
|
},
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "10.9.8.7", NodeName: "test.node.foo.bar"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
return eps
|
|
}
|
|
|
|
func (APIConnServiceTest) EndpointsList() []*object.Endpoints {
|
|
eps := []*object.Endpoints{
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.1", Hostname: "ep1a"},
|
|
},
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "svc1-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("svc1", "testns"),
|
|
},
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.2"},
|
|
},
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "hdls1-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("hdls1", "testns"),
|
|
},
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.2"},
|
|
},
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "hdls1-slice2",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("hdls1", "testns"),
|
|
},
|
|
{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "10.9.8.7", NodeName: "test.node.foo.bar"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
return eps
|
|
}
|
|
|
|
func (APIConnServiceTest) GetNodeByName(ctx context.Context, name string) (*api.Node, error) {
|
|
return &api.Node{
|
|
ObjectMeta: meta.ObjectMeta{
|
|
Name: "test.node.foo.bar",
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
func (APIConnServiceTest) GetNamespaceByName(name string) (*object.Namespace, error) {
|
|
return &object.Namespace{
|
|
Name: name,
|
|
}, nil
|
|
}
|
|
|
|
func TestServices(t *testing.T) {
|
|
k := New([]string{"interwebs.test."})
|
|
k.APIConn = &APIConnServiceTest{}
|
|
|
|
type svcAns struct {
|
|
host string
|
|
key string
|
|
}
|
|
type svcTest struct {
|
|
qname string
|
|
qtype uint16
|
|
answer []svcAns
|
|
}
|
|
tests := []svcTest{
|
|
// Cluster IP Services
|
|
{qname: "svc1.testns.svc.interwebs.test.", qtype: dns.TypeA, answer: []svcAns{{host: "10.0.0.1", key: "/" + coredns + "/test/interwebs/svc/testns/svc1"}}},
|
|
{qname: "_http._tcp.svc1.testns.svc.interwebs.test.", qtype: dns.TypeSRV, answer: []svcAns{{host: "10.0.0.1", key: "/" + coredns + "/test/interwebs/svc/testns/svc1"}}},
|
|
{qname: "ep1a.svc1.testns.svc.interwebs.test.", qtype: dns.TypeA, answer: []svcAns{{host: "172.0.0.1", key: "/" + coredns + "/test/interwebs/svc/testns/svc1/ep1a"}}},
|
|
|
|
// Dual-Stack Cluster IP Service
|
|
{
|
|
qname: "_http._tcp.svc-dual-stack.testns.svc.interwebs.test.",
|
|
qtype: dns.TypeSRV,
|
|
answer: []svcAns{
|
|
{host: "10.0.0.2", key: "/" + coredns + "/test/interwebs/svc/testns/svc-dual-stack"},
|
|
{host: "10::2", key: "/" + coredns + "/test/interwebs/svc/testns/svc-dual-stack"},
|
|
},
|
|
},
|
|
|
|
// External Services
|
|
{qname: "external.testns.svc.interwebs.test.", qtype: dns.TypeCNAME, answer: []svcAns{{host: "coredns.io", key: "/" + coredns + "/test/interwebs/svc/testns/external"}}},
|
|
|
|
// Headless Services
|
|
{qname: "hdls1.testns.svc.interwebs.test.", qtype: dns.TypeA, answer: []svcAns{{host: "172.0.0.2", key: "/" + coredns + "/test/interwebs/svc/testns/hdls1/172-0-0-2"}}},
|
|
}
|
|
|
|
for i, test := range tests {
|
|
state := request.Request{
|
|
Req: &dns.Msg{Question: []dns.Question{{Name: test.qname, Qtype: test.qtype}}},
|
|
Zone: "interwebs.test.", // must match from k.Zones[0]
|
|
}
|
|
svcs, e := k.Services(context.TODO(), state, false, plugin.Options{})
|
|
if e != nil {
|
|
t.Errorf("Test %d: got error '%v'", i, e)
|
|
continue
|
|
}
|
|
if len(svcs) != len(test.answer) {
|
|
t.Errorf("Test %d, expected %v answer, got %v", i, len(test.answer), len(svcs))
|
|
continue
|
|
}
|
|
|
|
for j := range svcs {
|
|
if test.answer[j].host != svcs[j].Host {
|
|
t.Errorf("Test %d, expected host '%v', got '%v'", i, test.answer[j].host, svcs[j].Host)
|
|
}
|
|
if test.answer[j].key != svcs[j].Key {
|
|
t.Errorf("Test %d, expected key '%v', got '%v'", i, test.answer[j].key, svcs[j].Key)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestServicesAuthority(t *testing.T) {
|
|
k := New([]string{"interwebs.test."})
|
|
k.APIConn = &APIConnServiceTest{}
|
|
|
|
type svcAns struct {
|
|
host string
|
|
key string
|
|
}
|
|
type svcTest struct {
|
|
localIPs []net.IP
|
|
qname string
|
|
qtype uint16
|
|
answer []svcAns
|
|
}
|
|
tests := []svcTest{
|
|
{localIPs: []net.IP{net.ParseIP("1.2.3.4")}, qname: "ns.dns.interwebs.test.", qtype: dns.TypeA, answer: []svcAns{{host: "1.2.3.4", key: "/" + coredns + "/test/interwebs/dns/ns"}}},
|
|
{localIPs: []net.IP{net.ParseIP("1.2.3.4")}, qname: "ns.dns.interwebs.test.", qtype: dns.TypeAAAA},
|
|
{localIPs: []net.IP{net.ParseIP("1:2::3:4")}, qname: "ns.dns.interwebs.test.", qtype: dns.TypeA},
|
|
{localIPs: []net.IP{net.ParseIP("1:2::3:4")}, qname: "ns.dns.interwebs.test.", qtype: dns.TypeAAAA, answer: []svcAns{{host: "1:2::3:4", key: "/" + coredns + "/test/interwebs/dns/ns"}}},
|
|
{
|
|
localIPs: []net.IP{net.ParseIP("1.2.3.4"), net.ParseIP("1:2::3:4")},
|
|
qname: "ns.dns.interwebs.test.",
|
|
qtype: dns.TypeNS, answer: []svcAns{
|
|
{host: "1.2.3.4", key: "/" + coredns + "/test/interwebs/dns/ns"},
|
|
{host: "1:2::3:4", key: "/" + coredns + "/test/interwebs/dns/ns"},
|
|
},
|
|
},
|
|
}
|
|
|
|
for i, test := range tests {
|
|
k.localIPs = test.localIPs
|
|
|
|
state := request.Request{
|
|
Req: &dns.Msg{Question: []dns.Question{{Name: test.qname, Qtype: test.qtype}}},
|
|
Zone: k.Zones[0],
|
|
}
|
|
svcs, e := k.Services(context.TODO(), state, false, plugin.Options{})
|
|
if e != nil {
|
|
t.Errorf("Test %d: got error '%v'", i, e)
|
|
continue
|
|
}
|
|
if test.answer != nil && len(svcs) != len(test.answer) {
|
|
t.Errorf("Test %d, expected 1 answer, got %v", i, len(svcs))
|
|
continue
|
|
}
|
|
if test.answer == nil && len(svcs) != 0 {
|
|
t.Errorf("Test %d, expected no answer, got %v", i, len(svcs))
|
|
continue
|
|
}
|
|
|
|
if test.answer == nil && len(svcs) == 0 {
|
|
continue
|
|
}
|
|
|
|
for i, answer := range test.answer {
|
|
if answer.host != svcs[i].Host {
|
|
t.Errorf("Test %d, expected host '%v', got '%v'", i, answer.host, svcs[i].Host)
|
|
}
|
|
if answer.key != svcs[i].Key {
|
|
t.Errorf("Test %d, expected key '%v', got '%v'", i, answer.key, svcs[i].Key)
|
|
}
|
|
}
|
|
}
|
|
}
|