272ccb195d
* initial commit Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * convert endpointslices to object.endpoints Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * add opt hard coded for now Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * check that server supports endpointslice Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * fix import grouping Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * dont use endpoint slice in 1.17 or 1.18 Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * bump kind/k8s in circle ci to latest Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * drop k8s to latest supported by kind Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * use endpointslice name as endoint Name; index by Service name Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * use index key comparison in nsAddrs() Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * add Index to object.Endpoint fixtures; fix direct endpoint name compares Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * add slice dup check and test Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * todo Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * add ep-slice skew dup test for reverse Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * nsaddrs: de-dup ep-slice skew dups; add test Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * remove todo Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * address various feedback Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * consolidate endpoint/slice informer code Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * fix endpoint informer consolidation; use clearer func name Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * log info; use major/minor fields Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * fix nsAddr and unit test Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * add latency tracking for endpointslices Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * endpointslice latency unit test & fix Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * code shuffling Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * rename endpointslices in tests Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * remove de-dup from nsAddrs and test Signed-off-by: Chris O'Haver <cohaver@infoblox.com> * remove de-dup from findServices / test Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
730 lines
21 KiB
Go
730 lines
21 KiB
Go
package kubernetes
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import (
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"context"
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"fmt"
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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/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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var dnsTestCases = []test.Case{
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// A Service
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{
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Qname: "svc1.testns.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("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
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},
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},
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{
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Qname: "svcempty.testns.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("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
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},
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},
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// A Service (wildcard)
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{
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Qname: "svc1.*.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("svc1.*.svc.cluster.local. 5 IN A 10.0.0.1"),
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},
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},
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{
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Qname: "svc1.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("svc1.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local.")},
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Extra: []dns.RR{test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
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},
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{
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Qname: "svcempty.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("svcempty.testns.svc.cluster.local. 5 IN SRV 0 100 80 svcempty.testns.svc.cluster.local.")},
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Extra: []dns.RR{test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
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},
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{
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Qname: "svc6.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("svc6.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc6.testns.svc.cluster.local.")},
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Extra: []dns.RR{test.AAAA("svc6.testns.svc.cluster.local. 5 IN AAAA 1234:abcd::1")},
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},
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// SRV Service (wildcard)
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{
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Qname: "svc1.*.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("svc1.*.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local.")},
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Extra: []dns.RR{test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
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},
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{
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Qname: "svcempty.*.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("svcempty.*.svc.cluster.local. 5 IN SRV 0 100 80 svcempty.testns.svc.cluster.local.")},
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Extra: []dns.RR{test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
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},
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// SRV Service (wildcards)
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{
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Qname: "*.any.svc1.*.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.SRV("*.any.svc1.*.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local.")},
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Extra: []dns.RR{test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
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},
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// A Service (wildcards)
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{
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Qname: "*.any.svc1.*.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("*.any.svc1.*.svc.cluster.local. 5 IN A 10.0.0.1"),
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},
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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.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. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 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.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("_http._tcp.svc1.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local."),
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},
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Extra: []dns.RR{
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test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
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},
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},
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{
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Qname: "_http._tcp.svcempty.testns.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("_http._tcp.svcempty.testns.svc.cluster.local. 5 IN SRV 0 100 80 svcempty.testns.svc.cluster.local."),
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},
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Extra: []dns.RR{
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test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
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},
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},
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// A Service (Headless)
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{
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Qname: "hdls1.testns.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("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
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test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
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test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
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test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
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},
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},
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// A Service (Headless and Portless)
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{
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Qname: "hdlsprtls.testns.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("hdlsprtls.testns.svc.cluster.local. 5 IN A 172.0.0.20"),
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},
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},
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// An Endpoint with no port
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{
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Qname: "172-0-0-20.hdlsprtls.testns.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("172-0-0-20.hdlsprtls.testns.svc.cluster.local. 5 IN A 172.0.0.20"),
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},
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},
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// An Endpoint ip
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{
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Qname: "172-0-0-2.hdls1.testns.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("172-0-0-2.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
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},
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},
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// A Endpoint ip
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{
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Qname: "172-0-0-3.hdls1.testns.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("172-0-0-3.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
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},
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},
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// An Endpoint by name
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{
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Qname: "dup-name.hdls1.testns.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("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
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test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
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},
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},
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// SRV Service (Headless)
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{
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Qname: "_http._tcp.hdls1.testns.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("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 172-0-0-2.hdls1.testns.svc.cluster.local."),
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test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 172-0-0-3.hdls1.testns.svc.cluster.local."),
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test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 5678-abcd--1.hdls1.testns.svc.cluster.local."),
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test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 5678-abcd--2.hdls1.testns.svc.cluster.local."),
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test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 dup-name.hdls1.testns.svc.cluster.local."),
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},
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Extra: []dns.RR{
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test.A("172-0-0-2.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
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test.A("172-0-0-3.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
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test.AAAA("5678-abcd--1.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::1"),
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test.AAAA("5678-abcd--2.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::2"),
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test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
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test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
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},
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},
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{ // An A record query for an existing headless service should return a record for each of its ipv4 endpoints
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Qname: "hdls1.testns.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("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
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test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
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test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
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test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
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},
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},
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// SRV Service (Headless and portless)
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{
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Qname: "*.*.hdlsprtls.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
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Rcode: dns.RcodeSuccess,
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Ns: []dns.RR{
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test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
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},
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},
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// AAAA
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{
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Qname: "5678-abcd--2.hdls1.testns.svc.cluster.local", Qtype: dns.TypeAAAA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{test.AAAA("5678-abcd--2.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::2")},
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},
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// CNAME External
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{
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Qname: "external.testns.svc.cluster.local.", Qtype: dns.TypeCNAME,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.CNAME("external.testns.svc.cluster.local. 5 IN CNAME ext.interwebs.test."),
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},
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},
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// CNAME External To Internal Service
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{
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Qname: "external-to-service.testns.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.CNAME("external-to-service.testns.svc.cluster.local. 5 IN CNAME svc1.testns.svc.cluster.local."),
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test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
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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.svc.cluster.local.", Qtype: dns.TypeAAAA,
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Rcode: dns.RcodeSuccess,
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Ns: []dns.RR{
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test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 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.svc.cluster.local.", Qtype: dns.TypeAAAA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 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.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. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 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.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. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
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},
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},
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// TXT Schema
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{
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Qname: "dns-version.cluster.local.", Qtype: dns.TypeTXT,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.TXT("dns-version.cluster.local 28800 IN TXT 1.1.0"),
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},
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},
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// A Service (Headless) does not exist
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{
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Qname: "bogusendpoint.hdls1.testns.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. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
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},
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},
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// A Service does not exist
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{
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Qname: "bogusendpoint.svc0.testns.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. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 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.svc.cluster.local.", Qtype: dns.TypeAAAA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.AAAA("svc6.testns.svc.cluster.local. 5 IN AAAA 1234:abcd::1"),
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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.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("_http._tcp.svc6.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc6.testns.svc.cluster.local."),
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},
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Extra: []dns.RR{
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test.AAAA("svc6.testns.svc.cluster.local. 5 IN AAAA 1234:abcd::1"),
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},
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},
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// AAAA Service (Headless)
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{
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Qname: "hdls1.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.AAAA("hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::1"),
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test.AAAA("hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::2"),
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},
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},
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// AAAA Endpoint
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{
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Qname: "5678-abcd--1.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
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Rcode: dns.RcodeSuccess,
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Answer: []dns.RR{
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test.AAAA("5678-abcd--1.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::1"),
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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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Ns: []dns.RR{
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test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
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},
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},
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{
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Qname: "pod.cluster.local.", Qtype: dns.TypeA,
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Rcode: dns.RcodeSuccess,
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|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
{
|
|
Qname: "testns.svc.cluster.local.", Qtype: dns.TypeA,
|
|
Rcode: dns.RcodeSuccess,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
// NS query for qname != zone (existing domain)
|
|
{
|
|
Qname: "svc.cluster.local.", Qtype: dns.TypeNS,
|
|
Rcode: dns.RcodeSuccess,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
// NS query for qname != zone (existing domain)
|
|
{
|
|
Qname: "testns.svc.cluster.local.", Qtype: dns.TypeNS,
|
|
Rcode: dns.RcodeSuccess,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
// NS query for qname != zone (non existing domain)
|
|
{
|
|
Qname: "foo.cluster.local.", Qtype: dns.TypeNS,
|
|
Rcode: dns.RcodeNameError,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
// NS query for qname != zone (non existing domain)
|
|
{
|
|
Qname: "foo.svc.cluster.local.", Qtype: dns.TypeNS,
|
|
Rcode: dns.RcodeNameError,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestServeDNS(t *testing.T) {
|
|
|
|
k := New([]string{"cluster.local."})
|
|
k.APIConn = &APIConnServeTest{}
|
|
k.Next = test.NextHandler(dns.RcodeSuccess, nil)
|
|
k.Namespaces = map[string]struct{}{"testns": {}}
|
|
ctx := context.TODO()
|
|
|
|
for i, tc := range dnsTestCases {
|
|
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
|
|
}
|
|
if tc.Error != nil {
|
|
continue
|
|
}
|
|
|
|
resp := w.Msg
|
|
if resp == nil {
|
|
t.Fatalf("Test %d, got nil message and no error for %q", i, r.Question[0].Name)
|
|
}
|
|
|
|
// Before sorting, make sure that CNAMES do not appear after their target records
|
|
if err := test.CNAMEOrder(resp); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if err := test.SortAndCheck(resp, tc); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
var nsTestCases = []test.Case{
|
|
// A Service for an "exposed" namespace that "does exist"
|
|
{
|
|
Qname: "svc1.testns.svc.cluster.local.", Qtype: dns.TypeA,
|
|
Rcode: dns.RcodeSuccess,
|
|
Answer: []dns.RR{
|
|
test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
|
|
},
|
|
},
|
|
// A service for an "exposed" namespace that "doesn't exist"
|
|
{
|
|
Qname: "svc1.nsnoexist.svc.cluster.local.", Qtype: dns.TypeA,
|
|
Rcode: dns.RcodeNameError,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1551484803 7200 1800 86400 30"),
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestServeNamespaceDNS(t *testing.T) {
|
|
k := New([]string{"cluster.local."})
|
|
k.APIConn = &APIConnServeTest{}
|
|
k.Next = test.NextHandler(dns.RcodeSuccess, nil)
|
|
// if no namespaces are explicitly exposed, then they are all implicitly exposed
|
|
k.Namespaces = map[string]struct{}{}
|
|
ctx := context.TODO()
|
|
|
|
for i, tc := range nsTestCases {
|
|
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
|
|
}
|
|
if tc.Error != nil {
|
|
continue
|
|
}
|
|
|
|
resp := w.Msg
|
|
if resp == nil {
|
|
t.Fatalf("Test %d, got nil message and no error for %q", i, r.Question[0].Name)
|
|
}
|
|
|
|
// Before sorting, make sure that CNAMES do not appear after their target records
|
|
test.CNAMEOrder(resp)
|
|
|
|
test.SortAndCheck(resp, tc)
|
|
}
|
|
}
|
|
|
|
var notSyncedTestCases = []test.Case{
|
|
{
|
|
// We should get ServerFailure instead of NameError for missing records when we kubernetes hasn't synced
|
|
Qname: "svc0.testns.svc.cluster.local.", Qtype: dns.TypeA,
|
|
Rcode: dns.RcodeServerFailure,
|
|
Ns: []dns.RR{
|
|
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestNotSyncedServeDNS(t *testing.T) {
|
|
|
|
k := New([]string{"cluster.local."})
|
|
k.APIConn = &APIConnServeTest{
|
|
notSynced: true,
|
|
}
|
|
k.Next = test.NextHandler(dns.RcodeSuccess, nil)
|
|
k.Namespaces = map[string]struct{}{"testns": {}}
|
|
ctx := context.TODO()
|
|
|
|
for i, tc := range notSyncedTestCases {
|
|
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
|
|
}
|
|
if tc.Error != nil {
|
|
continue
|
|
}
|
|
|
|
resp := w.Msg
|
|
if resp == nil {
|
|
t.Fatalf("Test %d, got nil message and no error for %q", i, r.Question[0].Name)
|
|
}
|
|
|
|
if err := test.CNAMEOrder(resp); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if err := test.SortAndCheck(resp, tc); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
type APIConnServeTest struct {
|
|
notSynced bool
|
|
}
|
|
|
|
func (a APIConnServeTest) HasSynced() bool { return !a.notSynced }
|
|
func (APIConnServeTest) Run() {}
|
|
func (APIConnServeTest) Stop() error { return nil }
|
|
func (APIConnServeTest) EpIndexReverse(string) []*object.Endpoints { return nil }
|
|
func (APIConnServeTest) SvcIndexReverse(string) []*object.Service { return nil }
|
|
func (APIConnServeTest) Modified() int64 { return int64(3) }
|
|
|
|
func (APIConnServeTest) PodIndex(ip string) []*object.Pod {
|
|
if ip != "10.240.0.1" {
|
|
return []*object.Pod{}
|
|
}
|
|
a := []*object.Pod{
|
|
{Namespace: "podns", Name: "foo", PodIP: "10.240.0.1"}, // Remote IP set in test.ResponseWriter
|
|
}
|
|
return a
|
|
}
|
|
|
|
var svcIndex = map[string][]*object.Service{
|
|
"svc1.testns": {
|
|
{
|
|
Name: "svc1",
|
|
Namespace: "testns",
|
|
Type: api.ServiceTypeClusterIP,
|
|
ClusterIP: "10.0.0.1",
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
},
|
|
"svcempty.testns": {
|
|
{
|
|
Name: "svcempty",
|
|
Namespace: "testns",
|
|
Type: api.ServiceTypeClusterIP,
|
|
ClusterIP: "10.0.0.1",
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
},
|
|
"svc6.testns": {
|
|
{
|
|
Name: "svc6",
|
|
Namespace: "testns",
|
|
Type: api.ServiceTypeClusterIP,
|
|
ClusterIP: "1234:abcd::1",
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
},
|
|
"hdls1.testns": {
|
|
{
|
|
Name: "hdls1",
|
|
Namespace: "testns",
|
|
Type: api.ServiceTypeClusterIP,
|
|
ClusterIP: api.ClusterIPNone,
|
|
},
|
|
},
|
|
"external.testns": {
|
|
{
|
|
Name: "external",
|
|
Namespace: "testns",
|
|
ExternalName: "ext.interwebs.test",
|
|
Type: api.ServiceTypeExternalName,
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
},
|
|
"external-to-service.testns": {
|
|
{
|
|
Name: "external-to-service",
|
|
Namespace: "testns",
|
|
ExternalName: "svc1.testns.svc.cluster.local.",
|
|
Type: api.ServiceTypeExternalName,
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
},
|
|
"hdlsprtls.testns": {
|
|
{
|
|
Name: "hdlsprtls",
|
|
Namespace: "testns",
|
|
Type: api.ServiceTypeClusterIP,
|
|
ClusterIP: api.ClusterIPNone,
|
|
},
|
|
},
|
|
"svc1.unexposedns": {
|
|
{
|
|
Name: "svc1",
|
|
Namespace: "unexposedns",
|
|
Type: api.ServiceTypeClusterIP,
|
|
ClusterIP: "10.0.0.2",
|
|
Ports: []api.ServicePort{
|
|
{Name: "http", Protocol: "tcp", Port: 80},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
func (APIConnServeTest) SvcIndex(s string) []*object.Service { return svcIndex[s] }
|
|
|
|
func (APIConnServeTest) ServiceList() []*object.Service {
|
|
var svcs []*object.Service
|
|
for _, svc := range svcIndex {
|
|
svcs = append(svcs, svc...)
|
|
}
|
|
return svcs
|
|
}
|
|
|
|
var epsIndex = map[string][]*object.Endpoints{
|
|
"svc1.testns": {{
|
|
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"),
|
|
}},
|
|
"svcempty.testns": {{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: nil,
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "svcempty-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("svcempty", "testns"),
|
|
}},
|
|
"hdls1.testns": {{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.2"},
|
|
{IP: "172.0.0.3"},
|
|
{IP: "172.0.0.4", Hostname: "dup-name"},
|
|
{IP: "172.0.0.5", Hostname: "dup-name"},
|
|
{IP: "5678:abcd::1"},
|
|
{IP: "5678:abcd::2"},
|
|
},
|
|
Ports: []object.EndpointPort{
|
|
{Port: 80, Protocol: "tcp", Name: "http"},
|
|
},
|
|
},
|
|
},
|
|
Name: "hdls1-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("hdls1", "testns"),
|
|
}},
|
|
"hdlsprtls.testns": {{
|
|
Subsets: []object.EndpointSubset{
|
|
{
|
|
Addresses: []object.EndpointAddress{
|
|
{IP: "172.0.0.20"},
|
|
},
|
|
Ports: []object.EndpointPort{{Port: -1}},
|
|
},
|
|
},
|
|
Name: "hdlsprtls-slice1",
|
|
Namespace: "testns",
|
|
Index: object.EndpointsKey("hdlsprtls", "testns"),
|
|
}},
|
|
}
|
|
|
|
func (APIConnServeTest) EpIndex(s string) []*object.Endpoints {
|
|
return epsIndex[s]
|
|
}
|
|
|
|
func (APIConnServeTest) EndpointsList() []*object.Endpoints {
|
|
var eps []*object.Endpoints
|
|
for _, ep := range epsIndex {
|
|
eps = append(eps, ep...)
|
|
}
|
|
return eps
|
|
}
|
|
|
|
func (APIConnServeTest) GetNodeByName(ctx context.Context, name string) (*api.Node, error) {
|
|
return &api.Node{
|
|
ObjectMeta: meta.ObjectMeta{
|
|
Name: "test.node.foo.bar",
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
func (APIConnServeTest) GetNamespaceByName(name string) (*api.Namespace, error) {
|
|
if name == "pod-nons" { // handler_pod_verified_test.go uses this for non-existent namespace.
|
|
return &api.Namespace{}, nil
|
|
}
|
|
if name == "nsnoexist" {
|
|
return nil, fmt.Errorf("namespace not found")
|
|
}
|
|
return &api.Namespace{
|
|
ObjectMeta: meta.ObjectMeta{
|
|
Name: name,
|
|
},
|
|
}, nil
|
|
}
|