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middleware/file|auto: Notifies and AXFR (#399)

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Be more explicit in the logs when a notify fails.
New notify error message looks like:

2016/11/07 18:21:42 [ERROR] Notify for zone "example.org." was not accepted by "8.8.8.8:53": rcode was "SERVFAIL"

Correctly pick up secondaries

When multiple secondary are specified make sure they are picked up.

Fixes #393 #398
This commit is contained in:
Miek Gieben 2016-11-07 19:15:21 +00:00 • committed by GitHub
parent e89c4b5c28
commit fb7fcff982
4 changed files with 50 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

6
middleware/auto/setup.go
View file

@ -127,7 +127,7 @@ func autoParse(c *caddy.Controller) (Auto, error) {
a.loader.template = rewriteToExpand(c.Val())
}
// template
// duration
if c.NextArg() {
i, err := strconv.Atoi(c.Val())
if err != nil {
@ -147,7 +147,9 @@ func autoParse(c *caddy.Controller) (Auto, error) {
if e != nil {
return a, e
}
a.loader.transferTo = t
if t != nil {
a.loader.transferTo = append(a.loader.transferTo, t...)
}
}
}

30
middleware/auto/setup_test.go
View file

@ -13,45 +13,53 @@ func TestAutoParse(t *testing.T) {
expectedDirectory string
expectedTempl string
expectedRe string
expectedTo string
expectedTo []string
}{
{
`auto example.org {
directory /tmp
transfer to 127.0.0.1
}`,
false, "/tmp", "${1}", `db\.(.*)`, "127.0.0.1:53",
false, "/tmp", "${1}", `db\.(.*)`, []string{"127.0.0.1:53"},
},
{
`auto {
directory /tmp
}`,
false, "/tmp", "${1}", `db\.(.*)`, "",
false, "/tmp", "${1}", `db\.(.*)`, nil,
},
{
`auto {
directory /tmp (.*) bliep
}`,
false, "/tmp", "bliep", `(.*)`, "",
false, "/tmp", "bliep", `(.*)`, nil,
},
{
`auto {
directory /tmp (.*) bliep
transfer to 127.0.0.1
transfer to 127.0.0.2
}`,
false, "/tmp", "bliep", `(.*)`, []string{"127.0.0.1:53", "127.0.0.2:53"},
},
// errors
{
`auto example.org {
directory
}`,
true, "", "${1}", `db\.(.*)`, "",
true, "", "${1}", `db\.(.*)`, nil,
},
{
`auto example.org {
directory /tmp * {1}
}`,
true, "", "${1}", ``, "",
true, "", "${1}", ``, nil,
},
{
`auto example.org {
directory /tmp .* {1}
}`,
true, "", "${1}", ``, "",
true, "", "${1}", ``, nil,
},
}
@ -73,8 +81,12 @@ func TestAutoParse(t *testing.T) {
if a.loader.re.String() != test.expectedRe {
t.Fatalf("Test %d expected %v, got %v", i, test.expectedRe, a.loader.re)
}
if test.expectedTo != "" && a.loader.transferTo[0] != test.expectedTo {
t.Fatalf("Test %d expected %v, got %v", i, test.expectedTo, a.loader.transferTo[0])
if test.expectedTo != nil {
for j, got := range a.loader.transferTo {
if got != test.expectedTo[j] {
t.Fatalf("Test %d expected %v, got %v", i, test.expectedTo[j], got)
}
}
}
}
}

9
middleware/file/notify.go
View file

@ -5,6 +5,7 @@ import (
"log"
"github.com/miekg/coredns/middleware"
"github.com/miekg/coredns/middleware/pkg/rcode"
"github.com/miekg/coredns/request"
"github.com/miekg/dns"
@ -49,21 +50,23 @@ func notify(zone string, to []string) error {
if err := notifyAddr(c, m, t); err != nil {
log.Printf("[ERROR] " + err.Error())
} else {
log.Printf("[INFO] Sent notify for zone %s to %s", zone, t)
log.Printf("[INFO] Sent notify for zone %q to %q", zone, t)
}
}
return nil
}
func notifyAddr(c *dns.Client, m *dns.Msg, s string) error {
code := dns.RcodeSuccess
for i := 0; i < 3; i++ {
ret, _, err := c.Exchange(m, s)
if err != nil {
continue
}
if ret.Rcode == dns.RcodeSuccess || ret.Rcode == dns.RcodeNotImplemented {
code = ret.Rcode
if code == dns.RcodeSuccess {
return nil
}
}
return fmt.Errorf("Failed to send notify for zone '%s' to '%s'", m.Question[0].Name, s)
return fmt.Errorf("Notify for zone %q was not accepted by %q: rcode was %q", m.Question[0].Name, s, rcode.ToString(code))
}

6
middleware/kubernetes/controller.go
View file

@ -97,7 +97,7 @@ func serviceListFunc(c *kubernetes.Clientset, ns string, s *labels.Selector) fun
}
}
func v1ToApiFilter(in watch.Event) (out watch.Event, keep bool) {
func v1ToAPIFilter(in watch.Event) (out watch.Event, keep bool) {
if in.Type == watch.Error {
return in, true
}
@ -134,7 +134,7 @@ func serviceWatchFunc(c *kubernetes.Clientset, ns string, s *labels.Selector) fu
if err != nil {
return nil, err
}
return watch.Filter(w, v1ToApiFilter), nil
return watch.Filter(w, v1ToAPIFilter), nil
}
}
@ -165,7 +165,7 @@ func namespaceWatchFunc(c *kubernetes.Clientset, s *labels.Selector) func(option
if err != nil {
return nil, err
}
return watch.Filter(w, v1ToApiFilter), nil
return watch.Filter(w, v1ToAPIFilter), nil
}
}