e2m/coredns-ldap
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This commit is contained in:
Miek Gieben 2018-04-26 21:56:11 +01:00
parent 2ba108890d
commit 7f0d44144d
2 changed files with 6 additions and 7 deletions
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10
example.go
View File

@ -16,6 +16,8 @@ import (
"golang.org/x/net/context"
)
// Define log to be a logger with the plugin name in it. This way we can just use log.Info and
// friends to log.
var log = clog.NewWithPlugin("example")
// Example is an example plugin to show how to write a plugin.
@ -38,7 +40,7 @@ func (e Example) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
pw := NewResponsePrinter(w)
// Export metric with the server label set to the current server handling the request.
requestCount.WithLabelValues(metrics.WithServer(ctx)).Add(1)
requestCount.WithLabelValues(metrics.WithServer(ctx)).Inc()
// Call next plugin (if any).
return plugin.NextOrFailure(e.Name(), e.Next, ctx, pw, r)
@ -47,8 +49,7 @@ func (e Example) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
// Name implements the Handler interface.
func (e Example) Name() string { return "example" }
// ResponsePrinter wrap a dns.ResponseWriter and will write example to standard output when
// WriteMsg is called.
// ResponsePrinter wrap a dns.ResponseWriter and will write example to standard output when WriteMsg is called.
type ResponsePrinter struct {
dns.ResponseWriter
}
@ -58,8 +59,7 @@ func NewResponsePrinter(w dns.ResponseWriter) *ResponsePrinter {
return &ResponsePrinter{ResponseWriter: w}
}
// WriteMsg calls the underlying ResponseWriter's WriteMsg method and prints "example" to standard
// output.
// WriteMsg calls the underlying ResponseWriter's WriteMsg method and prints "example" to standard output.
func (r *ResponsePrinter) WriteMsg(res *dns.Msg) error {
fmt.Fprintln(out, ex)
return r.ResponseWriter.WriteMsg(res)

3
metrics.go
View File

@ -8,8 +8,7 @@ import (
"github.com/prometheus/client_golang/prometheus"
)
// requestCount exports a prometheus metric that is incremented every time
// a query is seen by the example plugin.
// requestCount exports a prometheus metric that is incremented every time a query is seen by the example plugin.
var requestCount = prometheus.NewCounterVec(prometheus.CounterOpts{
Namespace: plugin.Namespace,
Subsystem: "example",