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Merge pull request #45 from miekg/etcd-stub

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Etcd stub
This commit is contained in:
Miek Gieben
2016-03-28 10:18:08 +01:00
parent 4be4e7430c 7a4ca687a2
commit 5a919198ac
8 changed files with 401 additions and 98 deletions
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9
middleware/proxy/lookup.go
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@@ -52,6 +52,9 @@ func New(hosts []string) Proxy {
return p
}
// Lookup will use name and tpe to forge a new message and will send that upstream. It will
// set any EDNS0 options correctly so that downstream will be able to process the reply.
// Lookup is not suitable for forwarding request. So Forward for that.
func (p Proxy) Lookup(state middleware.State, name string, tpe uint16) (*dns.Msg, error) {
req := new(dns.Msg)
req.SetQuestion(name, tpe)
@@ -62,13 +65,17 @@ func (p Proxy) Lookup(state middleware.State, name string, tpe uint16) (*dns.Msg
return p.lookup(state, req)
}
func (p Proxy) Forward(state middleware.State) (*dns.Msg, error) {
return p.lookup(state, state.Req)
}
func (p Proxy) lookup(state middleware.State, r *dns.Msg) (*dns.Msg, error) {
var (
reply *dns.Msg
err error
)
for _, upstream := range p.Upstreams {
// allowed bla bla bla TODO(miek): fix full proxy spec from caddy
// allowed bla bla bla TODO(miek): fix full proxy spec from caddy?
start := time.Now()
// Since Select() should give us "up" hosts, keep retrying