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coredns/middleware/etcd/lookup_test.go
Miek Gieben 78d2e31ec1 Add Stub resolving 
SkyDNS can forward requests from one instance to another.
Add this base infrastructure for this feature to CoreDNS.

Add more tests as well.
2016-03-24 09:20:53 +00:00

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// +build net
package etcd
// etcd needs to be running on http://127.0.0.1:2379
// *and* needs connectivity to the internet for remotely resolving
// names.
import (
"github.com/miekg/coredns/middleware/etcd/msg"
"github.com/miekg/dns"
)
// Note the key is encoded as DNS name, while in "reality" it is a etcd path.
var services = []*msg.Service{
{Host: "server1", Port: 8080, Key: "a.server1.dev.region1.skydns.test."},
{Host: "10.0.0.1", Port: 8080, Key: "a.server1.prod.region1.skydns.test."},
{Host: "10.0.0.2", Port: 8080, Key: "b.server1.prod.region1.skydns.test."},
{Host: "::1", Port: 8080, Key: "b.server6.prod.region1.skydns.test."},
// CNAME dedup
{Host: "www.miek.nl", Key: "a.miek.nl.skydns.test."},
{Host: "www.miek.nl", Key: "b.miek.nl.skydns.test."},
// Unresolvable internal name
{Host: "unresolvable.skydns.test", Key: "cname.prod.region1.skydns.test."},
// priority
{Host: "server1", Priority: 333, Port: 8080, Key: "priority.skydns.test."},
// Subdomain
{Host: "server1", Port: 0, Key: "a.sub.region1.skydns.test."},
{Host: "server2", Port: 80, Key: "b.sub.region1.skydns.test."},
{Host: "10.0.0.1", Port: 8080, Key: "c.sub.region1.skydns.test."},
}
var dnsTestCases = []dnsTestCase{
// SRV Test
{
Qname: "a.server1.dev.region1.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{newSRV("a.server1.dev.region1.skydns.test. 300 SRV 10 100 8080 server1.")},
},
// NXDOMAIN Test
{
Qname: "doesnotexist.skydns.test.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0"),
},
},
// A Test
{
Qname: "a.server1.prod.region1.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{newA("a.server1.prod.region1.skydns.test. 300 A 10.0.0.1")},
},
// SRV Test where target is IP address
{
Qname: "a.server1.prod.region1.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{newSRV("a.server1.prod.region1.skydns.test. 300 SRV 10 100 8080 a.server1.prod.region1.skydns.test.")},
Extra: []dns.RR{newA("a.server1.prod.region1.skydns.test. 300 A 10.0.0.1")},
},
// AAAA Test
{
Qname: "b.server6.prod.region1.skydns.test.", Qtype: dns.TypeAAAA,
Answer: []dns.RR{newAAAA("b.server6.prod.region1.skydns.test. 300 AAAA ::1")},
},
// Multiple A Record Test
{
Qname: "server1.prod.region1.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{
newA("server1.prod.region1.skydns.test. 300 A 10.0.0.1"),
newA("server1.prod.region1.skydns.test. 300 A 10.0.0.2"),
},
},
// Priority Test
{
Qname: "priority.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{newSRV("priority.skydns.test. 300 SRV 333 100 8080 server1.")},
},
// Subdomain Test
{
Qname: "sub.region1.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 0 server1."),
newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 80 server2."),
newSRV("sub.region1.skydns.test. 300 IN SRV 10 33 8080 c.sub.region1.skydns.test."),
},
Extra: []dns.RR{newA("c.sub.region1.skydns.test. 300 IN A 10.0.0.1")},
},
// Multi SRV with the same target, should be dedupped.
{
Qname: "*.miek.nl.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
newSRV("*.miek.nl.skydns.test. 300 IN SRV 10 100 0 www.miek.nl."),
},
// TODO(miek): bit stupid to rely on my home DNS setup for this...
Extra: []dns.RR{
// 303 ttl: don't care for the ttl on these RRs.
newA("a.miek.nl. 303 IN A 139.162.196.78"),
newAAAA("a.miek.nl. 303 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
newCNAME("www.miek.nl. 303 IN CNAME a.miek.nl."),
},
},
// CNAME (unresolvable internal name)
{
Qname: "cname.prod.region1.skydns.test.", Qtype: dns.TypeA,
Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
},
/*
// CNAME (resolvable external name)
{
Qname: "external1.cname.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{
newA("a.miek.nl. 60 IN A 139.162.196.78"),
newCNAME("external1.cname.skydns.test. 60 IN CNAME www.miek.nl."),
newCNAME("www.miek.nl. 60 IN CNAME a.miek.nl."),
},
},
// CNAME (unresolvable external name)
{
Qname: "external2.cname.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{},
Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
},
// CNAME loop detection
{
Qname: "3.cname.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{},
Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
},
// Wildcard Test
{
Qname: "*.region1.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
newSRV("*.region1.skydns.test. 300 SRV 10 33 0 104.server1.dev.region1.skydns.test."),
newSRV("*.region1.skydns.test. 300 SRV 10 33 80 server2"),
newSRV("*.region1.skydns.test. 300 SRV 10 33 8080 server1.")},
Extra: []dns.RR{newA("104.server1.dev.region1.skydns.test. 300 A 10.0.0.1")},
},
// Wildcard Test
{
Qname: "prod.*.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
newSRV("prod.*.skydns.test. 300 IN SRV 10 50 0 105.server3.prod.region2.skydns.test."),
newSRV("prod.*.skydns.test. 300 IN SRV 10 50 80 server2.")},
Extra: []dns.RR{newAAAA("105.server3.prod.region2.skydns.test. 300 IN AAAA 2001::8:8:8:8")},
},
// Wildcard Test
{
Qname: "prod.any.skydns.test.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
newSRV("prod.any.skydns.test. 300 IN SRV 10 50 0 105.server3.prod.region2.skydns.test."),
newSRV("prod.any.skydns.test. 300 IN SRV 10 50 80 server2.")},
Extra: []dns.RR{newAAAA("105.server3.prod.region2.skydns.test. 300 IN AAAA 2001::8:8:8:8")},
},
// NODATA Test
{
Qname: "104.server1.dev.region1.skydns.test.", Qtype: dns.TypeTXT,
Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
},
// NODATA Test 2
{
Qname: "100.server1.dev.region1.skydns.test.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{newSOA("skydns.test. 300 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
},
{
// One has group, the other has not... Include the non-group always.
Qname: "dom2.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{
newA("dom2.skydns.test. IN A 127.0.0.1"),
newA("dom2.skydns.test. IN A 127.0.0.2"),
},
},
{
// The groups differ.
Qname: "dom1.skydns.test.", Qtype: dns.TypeA,
Answer: []dns.RR{
newA("dom1.skydns.test. IN A 127.0.0.1"),
},
},
*/
}
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