coredns/plugin/metrics/context.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

24 lines
681 B
Go

package metrics
import (
"context"
"github.com/coredns/coredns/core/dnsserver"
)
// WithServer returns the current server handling the request. It returns the
// server listening address: <scheme>://[<bind>]:<port> Normally this is
// something like "dns://:53", but if the bind plugin is used, i.e. "bind
// 127.0.0.53", it will be "dns://127.0.0.53:53", etc. If not address is found
// the empty string is returned.
//
// Basic usage with a metric:
//
// <metric>.WithLabelValues(metrics.WithServer(ctx), labels..).Add(1)
func WithServer(ctx context.Context) string {
srv := ctx.Value(dnsserver.Key{})
if srv == nil {
return ""
}
return srv.(*dnsserver.Server).Addr
}