8f9f2cd1ab
This middleware acts in the same way as SkyDNS. We might add options
to allow it to be behave different, but for now it will suffice.
A Corefile like:
.:1053 {
etcd miek.nl
proxy . 8.8.8.8:53
}
will perform lookup in etcd and proxy everything not miek.nl to Google
for further resolution.
The internal etcd forwarding *also* uses the proxy infrastructure,
meaning you get health check and such for (almost) free
33 lines
610 B
Go
33 lines
610 B
Go
package middleware
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import (
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"strings"
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"github.com/miekg/dns"
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)
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type Zones []string
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// Matches checks to see if other matches p. The match will return the most
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// specific zones that matches other. The empty string signals a not found
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// condition.
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func (z Zones) Matches(qname string) string {
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zone := ""
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// TODO(miek): use IsSubDomain here?
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for _, zname := range z {
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if strings.HasSuffix(qname, zname) {
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if len(zname) > len(zone) {
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zone = zname
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}
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}
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}
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return zone
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}
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// Fully qualify all zones in z
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func (z Zones) FullyQualify() {
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for i, _ := range z {
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z[i] = dns.Fqdn(z[i])
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}
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}
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