830e97f800
* Convert to runtime.Object to smaller structs This adds conversion for all the objects we want to keep in the cache. It keeps the minimum for CoreDNS to function and throws away the rest. The conversion: api.Endpoints -> object.Endpoints api.Pod -> object.Pod api.Serivce -> object.Service We needed to copy some client-go stuff to insert a conversion function into NewIndexInformers. Some unrelated cleanups in the watch functionality as that needed to be touched because of the above translation of objects. Signed-off-by: Miek Gieben <miek@miek.nl> * Reduce test line-count Signed-off-by: Miek Gieben <miek@miek.nl> * ....and fix test Signed-off-by: Miek Gieben <miek@miek.nl> * Drop use of append Signed-off-by: Miek Gieben <miek@miek.nl> * cosmetic changes Signed-off-by: Miek Gieben <miek@miek.nl> * that was a typo Signed-off-by: Miek Gieben <miek@miek.nl> * re-introduce append here We can't really use len() here because we don't know the number before hand. Signed-off-by: Miek Gieben <miek@miek.nl> * comment in better place Signed-off-by: Miek Gieben <miek@miek.nl> * Make the timestamp a bool; thats where it is used for Signed-off-by: Miek Gieben <miek@miek.nl> * Set incoming object to nil Explicataliy discard the converted object; we did a deep copy it's not needed anymore. Signed-off-by: Miek Gieben <miek@miek.nl> * Per Chris's comment Signed-off-by: Miek Gieben <miek@miek.nl>
205 lines
6.4 KiB
Go
205 lines
6.4 KiB
Go
package kubernetes
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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/object"
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"github.com/coredns/coredns/plugin/pkg/dnstest"
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"github.com/coredns/coredns/plugin/pkg/watch"
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"github.com/coredns/coredns/plugin/test"
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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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type APIConnReverseTest struct{}
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func (APIConnReverseTest) HasSynced() bool { return true }
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func (APIConnReverseTest) Run() { return }
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func (APIConnReverseTest) Stop() error { return nil }
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func (APIConnReverseTest) PodIndex(string) []*object.Pod { return nil }
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func (APIConnReverseTest) EpIndex(string) []*object.Endpoints { return nil }
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func (APIConnReverseTest) EndpointsList() []*object.Endpoints { return nil }
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func (APIConnReverseTest) ServiceList() []*object.Service { return nil }
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func (APIConnReverseTest) Modified() int64 { return 0 }
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func (APIConnReverseTest) SetWatchChan(watch.Chan) {}
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func (APIConnReverseTest) Watch(string) error { return nil }
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func (APIConnReverseTest) StopWatching(string) {}
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func (APIConnReverseTest) SvcIndex(svc string) []*object.Service {
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if svc != "svc1.testns" {
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return nil
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}
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svcs := []*object.Service{
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{
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Name: "svc1",
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Namespace: "testns",
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ClusterIP: "192.168.1.100",
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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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return svcs
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}
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func (APIConnReverseTest) SvcIndexReverse(ip string) []*object.Service {
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if ip != "192.168.1.100" {
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return nil
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}
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svcs := []*object.Service{
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{
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Name: "svc1",
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Namespace: "testns",
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ClusterIP: "192.168.1.100",
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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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return svcs
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}
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func (APIConnReverseTest) EpIndexReverse(ip string) []*object.Endpoints {
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switch ip {
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case "10.0.0.100":
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case "1234:abcd::1":
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case "fd00:77:30::a":
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case "fd00:77:30::2:9ba6":
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default:
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return nil
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}
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eps := []*object.Endpoints{
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{
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Subsets: []object.EndpointSubset{
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{
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Addresses: []object.EndpointAddress{
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{IP: "10.0.0.100", Hostname: "ep1a"},
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{IP: "1234:abcd::1", Hostname: "ep1b"},
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{IP: "fd00:77:30::a", Hostname: "ip6svc1ex"},
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{IP: "fd00:77:30::2:9ba6", Hostname: "ip6svc1in"},
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},
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Ports: []object.EndpointPort{
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{Port: 80, Protocol: "tcp", Name: "http"},
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},
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},
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},
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Name: "svc1",
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Namespace: "testns",
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},
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}
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return eps
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}
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func (APIConnReverseTest) GetNodeByName(name string) (*api.Node, error) {
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return &api.Node{
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ObjectMeta: meta.ObjectMeta{
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Name: "test.node.foo.bar",
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},
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}, nil
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}
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func (APIConnReverseTest) 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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func TestReverse(t *testing.T) {
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k := New([]string{"cluster.local.", "0.10.in-addr.arpa.", "168.192.in-addr.arpa.", "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.c.b.a.4.3.2.1.ip6.arpa.", "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.7.7.0.0.0.0.d.f.ip6.arpa."})
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k.APIConn = &APIConnReverseTest{}
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tests := []test.Case{
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{
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Qname: "100.0.0.10.in-addr.arpa.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.PTR("100.0.0.10.in-addr.arpa. 5 IN PTR ep1a.svc1.testns.svc.cluster.local."),
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},
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},
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{
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Qname: "100.1.168.192.in-addr.arpa.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.PTR("100.1.168.192.in-addr.arpa. 5 IN PTR svc1.testns.svc.cluster.local."),
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},
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},
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{ // A PTR record query for an existing ipv6 endpoint should return a record
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Qname: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.c.b.a.4.3.2.1.ip6.arpa.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.PTR("1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.c.b.a.4.3.2.1.ip6.arpa. 5 IN PTR ep1b.svc1.testns.svc.cluster.local."),
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},
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},
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{ // A PTR record query for an existing ipv6 endpoint should return a record
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Qname: "a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.7.7.0.0.0.0.d.f.ip6.arpa.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.PTR("a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.7.7.0.0.0.0.d.f.ip6.arpa. 5 IN PTR ip6svc1ex.svc1.testns.svc.cluster.local."),
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},
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},
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{ // A PTR record query for an existing ipv6 endpoint should return a record
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Qname: "6.a.b.9.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.7.7.0.0.0.0.d.f.ip6.arpa.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.PTR("6.a.b.9.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.7.7.0.0.0.0.d.f.ip6.arpa. 5 IN PTR ip6svc1in.svc1.testns.svc.cluster.local."),
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},
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},
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{
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Qname: "101.0.0.10.in-addr.arpa.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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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"),
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},
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},
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{
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Qname: "example.org.cluster.local.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502989566 7200 1800 86400 60"),
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},
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},
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{
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Qname: "svc1.testns.svc.cluster.local.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeSuccess,
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Ns: []dns.RR{
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test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502989566 7200 1800 86400 60"),
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},
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},
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{
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Qname: "svc1.testns.svc.0.10.in-addr.arpa.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("0.10.in-addr.arpa. 300 IN SOA ns.dns.0.10.in-addr.arpa. hostmaster.0.10.in-addr.arpa. 1502989566 7200 1800 86400 60"),
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},
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},
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{
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Qname: "100.0.0.10.cluster.local.", Qtype: dns.TypePTR,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502989566 7200 1800 86400 60"),
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},
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},
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}
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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 := k.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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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: %s %d", i, r.Question[0].Name, r.Question[0].Qtype)
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}
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test.SortAndCheck(t, resp, tc)
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}
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}
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