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middleware/proxy: config syntax cleanups (#435)

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* middleware/proxy: config syntax cleanups

Allow port numbers to be used in the transfer statements and clean
up the proxy stanza parsing. Also allow, when specifying an upstream,
/etc/resolv.conf (or any other file) to be used for getting the upstream
nameserver.

Add tests and fix the documentation to make clear what is allowed.

* Fix the other upstream parse as well
This commit is contained in:
Miek Gieben
2016-11-24 16:57:20 +01:00
committed by GitHub
parent c8dd0459c7
commit 4a8db8a4ce
7 changed files with 212 additions and 56 deletions
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21
middleware/etcd/setup.go
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@@ -10,6 +10,7 @@ import (
"github.com/miekg/coredns/core/dnsserver"
"github.com/miekg/coredns/middleware"
"github.com/miekg/coredns/middleware/pkg/dnsutil"
"github.com/miekg/coredns/middleware/pkg/singleflight"
"github.com/miekg/coredns/middleware/proxy"
@@ -93,13 +94,11 @@ func etcdParse(c *caddy.Controller) (*Etcd, bool, error) {
if len(args) == 0 {
return &Etcd{}, false, c.ArgErr()
}
for i := 0; i < len(args); i++ {
h, p, e := net.SplitHostPort(args[i])
if e != nil && p == "" {
args[i] = h + ":53"
}
ups, err := dnsutil.ParseHostPortOrFile(args...)
if err != nil {
return &Etcd{}, false, err
}
etc.Proxy = proxy.New(args)
etc.Proxy = proxy.New(ups)
case "tls": // cert key cacertfile
args := c.RemainingArgs()
if len(args) != 3 {
@@ -133,13 +132,11 @@ func etcdParse(c *caddy.Controller) (*Etcd, bool, error) {
if len(args) == 0 {
return &Etcd{}, false, c.ArgErr()
}
for i := 0; i < len(args); i++ {
h, p, e := net.SplitHostPort(args[i])
if e != nil && p == "" {
args[i] = h + ":53"
}
ups, err := dnsutil.ParseHostPortOrFile(args...)
if err != nil {
return &Etcd{}, false, c.ArgErr()
}
etc.Proxy = proxy.New(args)
etc.Proxy = proxy.New(ups)
case "tls": // cert key cacertfile
args := c.RemainingArgs()
if len(args) != 3 {