coredns/plugin/metrics/handler.go
Miek Gieben 9a8c301a42 Remove server addr from the context (#2722)
* more

Signed-off-by: Miek Gieben <miek@miek.nl>

* Remove server addr from the context

This was added twice, just leave the server which also holds the
address.

Conflicts with #2719 but should be easy to fix.

Signed-off-by: Miek Gieben <miek@miek.nl>

* doesn't need server context

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-03-25 10:46:44 -07:00

35 lines
950 B
Go

package metrics
import (
"context"
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/metrics/vars"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/pkg/rcode"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
)
// ServeDNS implements the Handler interface.
func (m *Metrics) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
state := request.Request{W: w, Req: r}
qname := state.QName()
zone := plugin.Zones(m.ZoneNames()).Matches(qname)
if zone == "" {
zone = "."
}
// Record response to get status code and size of the reply.
rw := dnstest.NewRecorder(w)
status, err := plugin.NextOrFailure(m.Name(), m.Next, ctx, rw, r)
vars.Report(WithServer(ctx), state, zone, rcode.ToString(rw.Rcode), rw.Len, rw.Start)
return status, err
}
// Name implements the Handler interface.
func (m *Metrics) Name() string { return "prometheus" }