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WIP: autopath as middleware (#859)

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autopath as middleware
This commit is contained in:
Miek Gieben 2017-08-09 03:13:38 -07:00 • committed by GitHub
parent c3705ec68c
commit b46b9880bd
20 changed files with 597 additions and 642 deletions
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43
middleware/kubernetes/setup.go
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@ -5,13 +5,11 @@ import (
"fmt"
"log"
"net"
"strconv"
"strings"
"time"
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/middleware"
"github.com/coredns/coredns/middleware/kubernetes/autopath"
"github.com/coredns/coredns/middleware/pkg/dnsutil"
"github.com/coredns/coredns/middleware/proxy"
"github.com/miekg/dns"
@ -196,47 +194,6 @@ func kubernetesParse(c *caddy.Controller) (*Kubernetes, error) {
continue
}
return nil, fmt.Errorf("incorrect number of arguments for federation, got %v, expected 2", len(args))
case "autopath": // name zone
args := c.RemainingArgs()
k8s.autoPath = &autopath.AutoPath{
NDots: defautNdots,
HostSearchPath: []string{},
ResolvConfFile: defaultResolvConfFile,
OnNXDOMAIN: defaultOnNXDOMAIN,
}
if len(args) > 3 {
return nil, fmt.Errorf("incorrect number of arguments for autopath, got %v, expected at most 3", len(args))
}
if len(args) > 0 {
ndots, err := strconv.Atoi(args[0])
if err != nil {
return nil, fmt.Errorf("invalid NDOTS argument for autopath, got '%v', expected an integer", ndots)
}
k8s.autoPath.NDots = ndots
}
if len(args) > 1 {
switch args[1] {
case dns.RcodeToString[dns.RcodeNameError]:
k8s.autoPath.OnNXDOMAIN = dns.RcodeNameError
case dns.RcodeToString[dns.RcodeSuccess]:
k8s.autoPath.OnNXDOMAIN = dns.RcodeSuccess
case dns.RcodeToString[dns.RcodeServerFailure]:
k8s.autoPath.OnNXDOMAIN = dns.RcodeServerFailure
default:
return nil, fmt.Errorf("invalid RESPONSE argument for autopath, got '%v', expected SERVFAIL, NOERROR, or NXDOMAIN", args[1])
}
}
if len(args) > 2 {
k8s.autoPath.ResolvConfFile = args[2]
}
rc, err := dns.ClientConfigFromFile(k8s.autoPath.ResolvConfFile)
if err != nil {
return nil, fmt.Errorf("error when parsing %v: %v", k8s.autoPath.ResolvConfFile, err)
}
k8s.autoPath.HostSearchPath = rc.Search
middleware.Zones(k8s.autoPath.HostSearchPath).Normalize()
continue
}
}
return k8s, nil