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plugin/metrics: add 'server' label (#1682)

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* plugin/metrics: add 'server' label

This uses the new WithServer(ctx) to get the current server from the
context.

First in a larger refactor to make all plugins do this.

* compile

* compile

* lala test

* compile and test

* typos

* Dont duplicate the code
This commit is contained in:
Miek Gieben 2018-04-18 09:42:20 +01:00 • committed by GitHub
parent 573ad62b77
commit 08443a9f00
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10 changed files with 68 additions and 56 deletions
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10
plugin/metrics/context.go
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@ -1,7 +1,7 @@
package metrics
import (
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/metrics/vars"
"golang.org/x/net/context"
)
@ -15,10 +15,4 @@ import (
// Basic usage with a metric:
//
// <metric>.WithLabelValues(metrics.WithServer(ctx), labels..).Add(1)
func WithServer(ctx context.Context) string {
srv := ctx.Value(plugin.ServerCtx{})
if srv == nil {
return ""
}
return srv.(string)
}
func WithServer(ctx context.Context) string { return vars.WithServer(ctx) }