mirror of
https://github.com/coredns/coredns.git
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plugin/kubernetes: Modify integration tests for coredns/ci (#1152)
* integration ci * rename test * unfunctionalize DoIntegrationTests * alphabetize expected answers * Enable out-of-cluster test * Enable out-of-cluster test * move integration tests back to ci repo
This commit is contained in:
Chris O'Haver
committed by
John Belamaric
John Belamaric
parent
c2d93f7182
commit
e8184d3a5a
@@ -1,49 +0,0 @@
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// +build k8s
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package test
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import (
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"testing"
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"github.com/coredns/coredns/plugin/test"
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"github.com/miekg/dns"
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)
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func TestKubernetesAPIFallthrough(t *testing.T) {
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tests := []test.Case{
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{
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Qname: "svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
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},
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},
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}
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corefile :=
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`.:0 {
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kubernetes cluster.local {
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endpoint http://nonexistance:8080,http://invalidip:8080,http://localhost:8080
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namespaces test-1
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pods disabled
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}`
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server, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer server.Stop()
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for _, tc := range tests {
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c := new(dns.Client)
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m := tc.Msg()
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res, _, err := c.Exchange(m, udp)
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if err != nil {
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t.Fatalf("Could not send query: %s", err)
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}
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test.SortAndCheck(t, res, tc)
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}
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}
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@@ -1,75 +0,0 @@
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// +build k8s
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package test
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import (
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"io/ioutil"
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"log"
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"os"
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"testing"
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"github.com/coredns/coredns/plugin/test"
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"github.com/miekg/dns"
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)
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func init() {
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log.SetOutput(ioutil.Discard)
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}
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var dnsTestCasesFallthrough = []test.Case{
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{
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Qname: "ext-svc.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("example.net. 303 IN A 13.14.15.16"),
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test.CNAME("ext-svc.test-1.svc.cluster.local. 303 IN CNAME example.net."),
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},
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},
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{
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Qname: "f.b.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("f.b.svc.cluster.local. 303 IN A 10.10.10.11"),
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},
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Ns: []dns.RR{
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test.NS("cluster.local. 303 IN NS a.iana-servers.net."),
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test.NS("cluster.local. 303 IN NS b.iana-servers.net."),
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},
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},
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{
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Qname: "foo.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("foo.cluster.local. 303 IN A 10.10.10.10"),
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},
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Ns: []dns.RR{
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test.NS("cluster.local. 303 IN NS a.iana-servers.net."),
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test.NS("cluster.local. 303 IN NS b.iana-servers.net."),
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},
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},
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}
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func TestKubernetesFallthrough(t *testing.T) {
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dbfile, rmFunc, err := TempFile(os.TempDir(), clusterLocal)
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if err != nil {
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t.Fatalf("Could not create zonefile for fallthrough server: %s", err)
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}
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defer rmFunc()
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rmFunc, upstream, udp := upstreamServer(t)
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defer upstream.Stop()
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defer rmFunc()
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corefile :=
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`.:0 {
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file ` + dbfile + ` cluster.local
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kubernetes cluster.local {
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endpoint http://localhost:8080
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namespaces test-1
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upstream ` + udp + `
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fallthrough
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}
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`
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doIntegrationTests(t, corefile, dnsTestCasesFallthrough)
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}
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@@ -1,56 +0,0 @@
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// +build k8s
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package test
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import (
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"testing"
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"github.com/coredns/coredns/plugin/test"
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"github.com/miekg/dns"
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)
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var dnsTestCasesAllNSExposed = []test.Case{
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{
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Qname: "svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
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},
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},
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{
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Qname: "svc-c.test-2.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc-c.test-2.svc.cluster.local. 303 IN A 10.0.0.120"),
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},
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},
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}
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func TestKubernetesNSExposed(t *testing.T) {
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corefile :=
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`.:0 {
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kubernetes cluster.local {
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endpoint http://localhost:8080
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}
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`
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server, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer server.Stop()
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for _, tc := range dnsTestCasesAllNSExposed {
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c := new(dns.Client)
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m := tc.Msg()
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res, _, err := c.Exchange(m, udp)
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if err != nil {
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t.Fatalf("Could not send query: %s", err)
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}
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test.SortAndCheck(t, res, tc)
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}
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}
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@@ -1,103 +0,0 @@
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// +build k8s
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package test
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import (
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"testing"
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"github.com/coredns/coredns/plugin/test"
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"github.com/miekg/dns"
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)
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var dnsTestCasesPodsInsecure = []test.Case{
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{
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Qname: "10-20-0-101.test-1.pod.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("10-20-0-101.test-1.pod.cluster.local. 303 IN A 10.20.0.101"),
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},
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},
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{
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Qname: "10-20-0-101.test-X.pod.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502307903 7200 1800 86400 60"),
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},
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},
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}
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func TestKubernetesPodsInsecure(t *testing.T) {
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corefile := `.:0 {
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kubernetes cluster.local 0.0.10.in-addr.arpa {
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endpoint http://localhost:8080
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namespaces test-1
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pods insecure
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}
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`
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server, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer server.Stop()
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for _, tc := range dnsTestCasesPodsInsecure {
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c := new(dns.Client)
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m := tc.Msg()
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res, _, err := c.Exchange(m, udp)
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if err != nil {
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t.Fatalf("Could not send query: %s", err)
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}
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test.SortAndCheck(t, res, tc)
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}
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}
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var dnsTestCasesPodsVerified = []test.Case{
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{
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Qname: "10-20-0-101.test-1.pod.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502308197 7200 1800 86400 60"),
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},
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},
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{
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Qname: "10-20-0-101.test-X.pod.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502307960 7200 1800 86400 60"),
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},
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},
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}
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func TestKubernetesPodsVerified(t *testing.T) {
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corefile := `.:0 {
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kubernetes cluster.local 0.0.10.in-addr.arpa {
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endpoint http://localhost:8080
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namespaces test-1
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pods verified
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}
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`
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server, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer server.Stop()
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for _, tc := range dnsTestCasesPodsVerified {
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c := new(dns.Client)
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m := tc.Msg()
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res, _, err := c.Exchange(m, udp)
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if err != nil {
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t.Fatalf("Could not send query: %s", err)
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}
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test.SortAndCheck(t, res, tc)
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}
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}
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@@ -1,419 +0,0 @@
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// +build k8s
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package test
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import (
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"sort"
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"strconv"
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"strings"
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"testing"
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"time"
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"github.com/coredns/coredns/plugin/test"
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"github.com/mholt/caddy"
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"github.com/miekg/dns"
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)
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func init() {
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log.SetOutput(ioutil.Discard)
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}
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var dnsTestCases = []test.Case{
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{
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Qname: "svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc-1-a.test-1.svc.cluster.local. 5 IN A 10.0.0.100"),
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},
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},
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{
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Qname: "bogusservice.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "bogusendpoint.svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "bogusendpoint.headless-svc.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "svc-1-a.*.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc-1-a.*.svc.cluster.local. 303 IN A 10.0.0.100"),
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},
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},
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{
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Qname: "svc-1-a.any.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.A("svc-1-a.any.svc.cluster.local. 303 IN A 10.0.0.100"),
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},
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},
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{
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Qname: "bogusservice.*.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "bogusservice.any.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "*.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: append([]dns.RR{
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test.A("*.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
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test.A("*.test-1.svc.cluster.local. 303 IN A 10.0.0.110"),
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test.A("*.test-1.svc.cluster.local. 303 IN A 10.0.0.115"),
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test.CNAME("*.test-1.svc.cluster.local. 303 IN CNAME example.net."),
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test.A("example.net. 303 IN A 13.14.15.16"),
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}, headlessAResponse("*.test-1.svc.cluster.local.", "headless-svc", "test-1")...),
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},
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{
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Qname: "any.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: append([]dns.RR{
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test.A("any.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
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test.A("any.test-1.svc.cluster.local. 303 IN A 10.0.0.110"),
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test.A("any.test-1.svc.cluster.local. 303 IN A 10.0.0.115"),
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test.CNAME("any.test-1.svc.cluster.local. 303 IN CNAME example.net."),
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test.A("example.net. 303 IN A 13.14.15.16"),
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}, headlessAResponse("any.test-1.svc.cluster.local.", "headless-svc", "test-1")...),
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},
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{
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Qname: "any.test-2.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "*.test-2.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
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{
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Qname: "*.*.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: append([]dns.RR{
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test.A("*.*.svc.cluster.local. 303 IN A 10.0.0.100"),
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test.A("*.*.svc.cluster.local. 303 IN A 10.0.0.110"),
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test.A("*.*.svc.cluster.local. 303 IN A 10.0.0.115"),
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test.CNAME("*.*.svc.cluster.local. 303 IN CNAME example.net."),
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test.A("example.net. 303 IN A 13.14.15.16"),
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}, headlessAResponse("*.*.svc.cluster.local.", "headless-svc", "test-1")...),
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},
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{
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Qname: "headless-svc.test-1.svc.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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Answer: headlessAResponse("headless-svc.test-1.svc.cluster.local.", "headless-svc", "test-1"),
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},
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{
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Qname: "*._TcP.svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.SRV("*._TcP.svc-1-a.test-1.svc.cluster.local. 303 IN SRV 0 50 443 svc-1-a.test-1.svc.cluster.local."),
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test.SRV("*._TcP.svc-1-a.test-1.svc.cluster.local. 303 IN SRV 0 50 80 svc-1-a.test-1.svc.cluster.local."),
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},
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Extra: []dns.RR{
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test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
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},
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},
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{
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Qname: "*.*.bogusservice.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
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},
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},
|
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{
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||||
Qname: "*.any.svc-1-a.*.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: []dns.RR{
|
||||
test.SRV("*.any.svc-1-a.*.svc.cluster.local. 303 IN SRV 0 50 443 svc-1-a.test-1.svc.cluster.local."),
|
||||
test.SRV("*.any.svc-1-a.*.svc.cluster.local. 303 IN SRV 0 50 80 svc-1-a.test-1.svc.cluster.local."),
|
||||
},
|
||||
Extra: []dns.RR{
|
||||
test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "ANY.*.svc-1-a.any.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: []dns.RR{
|
||||
test.SRV("ANY.*.svc-1-a.any.svc.cluster.local. 303 IN SRV 0 50 443 svc-1-a.test-1.svc.cluster.local."),
|
||||
test.SRV("ANY.*.svc-1-a.any.svc.cluster.local. 303 IN SRV 0 50 80 svc-1-a.test-1.svc.cluster.local."),
|
||||
},
|
||||
Extra: []dns.RR{
|
||||
test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "*.*.bogusservice.*.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeNameError,
|
||||
Ns: []dns.RR{
|
||||
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "*.*.bogusservice.any.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeNameError,
|
||||
Ns: []dns.RR{
|
||||
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "_c-port._UDP.*.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: append(srvResponse("_c-port._UDP.*.test-1.svc.cluster.local.", dns.TypeSRV, "headless-svc", "test-1"),
|
||||
[]dns.RR{
|
||||
test.SRV("_c-port._UDP.*.test-1.svc.cluster.local. 303 IN SRV 0 33 1234 svc-c.test-1.svc.cluster.local.")}...),
|
||||
Extra: append(srvResponse("_c-port._UDP.*.test-1.svc.cluster.local.", dns.TypeA, "headless-svc", "test-1"),
|
||||
[]dns.RR{
|
||||
test.A("svc-c.test-1.svc.cluster.local. 303 IN A 10.0.0.115")}...),
|
||||
},
|
||||
{
|
||||
Qname: "*._tcp.any.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: []dns.RR{
|
||||
test.SRV("*._tcp.any.test-1.svc.cluster.local. 303 IN SRV 0 33 443 svc-1-a.test-1.svc.cluster.local."),
|
||||
test.SRV("*._tcp.any.test-1.svc.cluster.local. 303 IN SRV 0 33 80 svc-1-a.test-1.svc.cluster.local."),
|
||||
test.SRV("*._tcp.any.test-1.svc.cluster.local. 303 IN SRV 0 33 80 svc-1-b.test-1.svc.cluster.local."),
|
||||
},
|
||||
Extra: []dns.RR{
|
||||
test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
|
||||
test.A("svc-1-b.test-1.svc.cluster.local. 303 IN A 10.0.0.110"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "*.*.any.test-2.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeNameError,
|
||||
Ns: []dns.RR{
|
||||
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "*.*.*.test-2.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeNameError,
|
||||
Ns: []dns.RR{
|
||||
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "_http._tcp.*.*.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: []dns.RR{
|
||||
test.SRV("_http._tcp.*.*.svc.cluster.local. 303 IN SRV 0 50 80 svc-1-a.test-1.svc.cluster.local."),
|
||||
test.SRV("_http._tcp.*.*.svc.cluster.local. 303 IN SRV 0 50 80 svc-1-b.test-1.svc.cluster.local."),
|
||||
},
|
||||
Extra: []dns.RR{
|
||||
test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
|
||||
test.A("svc-1-b.test-1.svc.cluster.local. 303 IN A 10.0.0.110"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "*.svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: srvResponse("*.svc-1-a.test-1.svc.cluster.local.", dns.TypeSRV, "svc-1-a", "test-1"),
|
||||
Extra: srvResponse("*.svc-1-a.test-1.svc.cluster.local.", dns.TypeA, "svc-1-a", "test-1"),
|
||||
},
|
||||
{
|
||||
Qname: "*._not-udp-or-tcp.svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeNameError,
|
||||
Ns: []dns.RR{
|
||||
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1502313310 7200 1800 86400 60"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "svc-1-a.test-1.svc.cluster.local.", Qtype: dns.TypeSRV,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: []dns.RR{
|
||||
test.SRV("svc-1-a.test-1.svc.cluster.local. 303 IN SRV 0 50 443 svc-1-a.test-1.svc.cluster.local."),
|
||||
test.SRV("svc-1-a.test-1.svc.cluster.local. 303 IN SRV 0 50 80 svc-1-a.test-1.svc.cluster.local."),
|
||||
},
|
||||
Extra: []dns.RR{
|
||||
test.A("svc-1-a.test-1.svc.cluster.local. 303 IN A 10.0.0.100"),
|
||||
},
|
||||
},
|
||||
{
|
||||
Qname: "10-20-0-101.test-1.pod.cluster.local.", Qtype: dns.TypeA,
|
||||
Rcode: dns.RcodeServerFailure,
|
||||
},
|
||||
{
|
||||
Qname: "dns-version.cluster.local.", Qtype: dns.TypeTXT,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Answer: []dns.RR{
|
||||
test.TXT(`dns-version.cluster.local. 303 IN TXT "1.0.1"`),
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
func doIntegrationTests(t *testing.T, corefile string, testCases []test.Case) {
|
||||
server, udp, _, err := CoreDNSServerAndPorts(corefile)
|
||||
if err != nil {
|
||||
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
|
||||
}
|
||||
defer server.Stop()
|
||||
|
||||
time.Sleep(3 * time.Second)
|
||||
|
||||
for _, tc := range testCases {
|
||||
|
||||
c := new(dns.Client)
|
||||
m := tc.Msg()
|
||||
|
||||
res, _, err := c.Exchange(m, udp)
|
||||
if err != nil {
|
||||
t.Fatalf("Could not send query: %s", err)
|
||||
}
|
||||
|
||||
// Before sorting, make sure that CNAMES do not appear after their target records and then sort the tc.
|
||||
test.CNAMEOrder(t, res)
|
||||
sort.Sort(test.RRSet(tc.Answer))
|
||||
sort.Sort(test.RRSet(tc.Ns))
|
||||
sort.Sort(test.RRSet(tc.Extra))
|
||||
|
||||
test.SortAndCheck(t, res, tc)
|
||||
}
|
||||
}
|
||||
|
||||
func upstreamServer(t *testing.T) (func(), *caddy.Instance, string) {
|
||||
upfile, rmFunc, err := TempFile(os.TempDir(), exampleNet)
|
||||
if err != nil {
|
||||
t.Fatalf("Could not create file for CNAME upstream lookups: %s", err)
|
||||
}
|
||||
upstreamCorefile := `.:0 {
|
||||
file ` + upfile + ` example.net
|
||||
}`
|
||||
server, udp, _, err := CoreDNSServerAndPorts(upstreamCorefile)
|
||||
if err != nil {
|
||||
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
|
||||
}
|
||||
return rmFunc, server, udp
|
||||
}
|
||||
|
||||
func TestKubernetes(t *testing.T) {
|
||||
|
||||
rmFunc, upstream, udp := upstreamServer(t)
|
||||
defer upstream.Stop()
|
||||
defer rmFunc()
|
||||
|
||||
corefile :=
|
||||
`.:0 {
|
||||
kubernetes cluster.local 0.0.10.in-addr.arpa {
|
||||
endpoint http://localhost:8080
|
||||
namespaces test-1
|
||||
pods disabled
|
||||
upstream ` + udp + `
|
||||
}
|
||||
`
|
||||
doIntegrationTests(t, corefile, dnsTestCases)
|
||||
}
|
||||
|
||||
// headlessAResponse returns the answer to an A request for the specific name and namespace.
|
||||
func headlessAResponse(qname, namespace, name string) []dns.RR {
|
||||
rr := []dns.RR{}
|
||||
|
||||
str, err := endpointIPs(name, namespace)
|
||||
if err != nil {
|
||||
log.Fatal("Error running kubectl command: ", err.Error())
|
||||
}
|
||||
result := strings.Split(string(str), " ")
|
||||
lr := len(result)
|
||||
|
||||
for i := 0; i < lr; i++ {
|
||||
rr = append(rr, test.A(qname+" 303 IN A "+result[i]))
|
||||
}
|
||||
return rr
|
||||
}
|
||||
|
||||
// srvResponse returns the answer to a SRV request for the specific name and namespace
|
||||
// qtype is the type of answer to generate, eg: TypeSRV (for answer section) or TypeA (for extra section).
|
||||
func srvResponse(qname string, qtype uint16, namespace, name string) []dns.RR {
|
||||
rr := []dns.RR{}
|
||||
|
||||
str, err := endpointIPs(name, namespace)
|
||||
|
||||
if err != nil {
|
||||
log.Fatal("Error running kubectl command: ", err.Error())
|
||||
}
|
||||
result := strings.Split(string(str), " ")
|
||||
lr := len(result)
|
||||
|
||||
for i := 0; i < lr; i++ {
|
||||
ip := strings.Replace(result[i], ".", "-", -1)
|
||||
t := strconv.Itoa(100 / (lr + 1))
|
||||
|
||||
switch qtype {
|
||||
case dns.TypeA:
|
||||
rr = append(rr, test.A(ip+"."+namespace+"."+name+".svc.cluster.local. 303 IN A "+result[i]))
|
||||
case dns.TypeSRV:
|
||||
if namespace == "headless-svc" {
|
||||
rr = append(rr, test.SRV(qname+" 303 IN SRV 0 "+t+" 1234 "+ip+"."+namespace+"."+name+".svc.cluster.local."))
|
||||
} else {
|
||||
rr = append(rr, test.SRV(qname+" 303 IN SRV 0 "+t+" 443 "+ip+"."+namespace+"."+name+".svc.cluster.local."))
|
||||
rr = append(rr, test.SRV(qname+" 303 IN SRV 0 "+t+" 80 "+ip+"."+namespace+"."+name+".svc.cluster.local."))
|
||||
}
|
||||
}
|
||||
}
|
||||
return rr
|
||||
}
|
||||
|
||||
//endpointIPs retrieves the IP address for a given name and namespace by parsing json using kubectl command
|
||||
func endpointIPs(name, namespace string) (cmdOut []byte, err error) {
|
||||
|
||||
kctl := os.Getenv("KUBECTL")
|
||||
|
||||
if kctl == "" {
|
||||
kctl = "kubectl"
|
||||
}
|
||||
cmdArgs := kctl + " -n " + name + " get endpoints " + namespace + " -o jsonpath={.subsets[*].addresses[*].ip}"
|
||||
if cmdOut, err = exec.Command("sh", "-c", cmdArgs).Output(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return cmdOut, nil
|
||||
}
|
||||
|
||||
const clusterLocal = `; cluster.local test file for fallthrough
|
||||
cluster.local. IN SOA sns.dns.icann.org. noc.dns.icann.org. 2015082541 7200 3600 1209600 3600
|
||||
cluster.local. IN NS b.iana-servers.net.
|
||||
cluster.local. IN NS a.iana-servers.net.
|
||||
cluster.local. IN A 127.0.0.1
|
||||
cluster.local. IN A 127.0.0.2
|
||||
foo.cluster.local. IN A 10.10.10.10
|
||||
f.b.svc.cluster.local. IN A 10.10.10.11
|
||||
*.w.cluster.local. IN TXT "Wildcard"
|
||||
a.b.svc.cluster.local. IN TXT "Not a wildcard"
|
||||
cname.cluster.local. IN CNAME www.example.net.
|
||||
|
||||
service.namespace.svc.cluster.local. IN SRV 8080 10 10 cluster.local.
|
||||
`
|
||||
|
||||
const exampleNet = `; example.net. test file for cname tests
|
||||
example.net. IN SOA ns.example.net. admin.example.net. 2015082541 7200 3600 1209600 3600
|
||||
example.net. IN A 13.14.15.16
|
||||
`
|
||||
Reference in New Issue
Block a user