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Add k8s external service CNAMEs (#677)

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* Add external service cnames

* remove cruft

* update CI k8s version

* change CI k8s version

* min k8s ver for ext services

* trying k8s 1.5

* k8s 1.5 requires ports spec

* remove kruft

* update dns schema version
This commit is contained in:
Chris O'Haver
2017-05-30 08:20:39 -04:00
committed by Miek Gieben
parent 2f2c90f391
commit d917ff5ac2
11 changed files with 293 additions and 16 deletions
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10
middleware/backend_lookup.go
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@@ -25,7 +25,7 @@ func A(b ServiceBackend, zone string, state request.Request, previousRecords []d
what, ip := serv.HostType()
switch what {
case dns.TypeANY:
case dns.TypeCNAME:
if Name(state.Name()).Matches(dns.Fqdn(serv.Host)) {
// x CNAME x is a direct loop, don't add those
continue
@@ -92,7 +92,7 @@ func AAAA(b ServiceBackend, zone string, state request.Request, previousRecords
what, ip := serv.HostType()
switch what {
case dns.TypeANY:
case dns.TypeCNAME:
// Try to resolve as CNAME if it's not an IP, but only if we don't create loops.
if Name(state.Name()).Matches(dns.Fqdn(serv.Host)) {
// x CNAME x is a direct loop, don't add those
@@ -182,7 +182,7 @@ func SRV(b ServiceBackend, zone string, state request.Request, opt Options) (rec
what, ip := serv.HostType()
switch what {
case dns.TypeANY:
case dns.TypeCNAME:
srv := serv.NewSRV(state.QName(), weight)
records = append(records, srv)
@@ -250,7 +250,7 @@ func MX(b ServiceBackend, zone string, state request.Request, opt Options) (reco
}
what, ip := serv.HostType()
switch what {
case dns.TypeANY:
case dns.TypeCNAME:
mx := serv.NewMX(state.QName())
records = append(records, mx)
if _, ok := lookup[mx.Mx]; ok {
@@ -364,7 +364,7 @@ func NS(b ServiceBackend, zone string, state request.Request, opt Options) (reco
for _, serv := range services {
what, ip := serv.HostType()
switch what {
case dns.TypeANY:
case dns.TypeCNAME:
return nil, nil, debug, fmt.Errorf("NS record must be an IP address: %s", serv.Host)
case dns.TypeA, dns.TypeAAAA: