44 lines
1,000 B
Go
44 lines
1,000 B
Go
package dnsstat
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import (
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"context"
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"github.com/coredns/caddy"
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"github.com/coredns/coredns/core/dnsserver"
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"github.com/coredns/coredns/plugin"
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"github.com/coredns/coredns/plugin/metrics"
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"github.com/miekg/dns"
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)
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// Dump implement the plugin interface.
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type DNSStat struct {
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Next plugin.Handler
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}
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func init() { plugin.Register("dnsstat", setup) }
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func setup(c *caddy.Controller) error {
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for c.Next() {
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if c.NextArg() {
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return plugin.Error("dnsstat", c.ArgErr())
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}
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}
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dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
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return DNSStat{Next: next}
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})
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return nil
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}
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// ServeDNS implements the plugin.Handler interface.
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func (d DNSStat) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
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// Metric increment
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requestCount.WithLabelValues(metrics.WithServer(ctx)).Inc()
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return plugin.NextOrFailure(d.Name(), d.Next, ctx, w, r)
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}
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// Name implements the Handler interface.
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func (d DNSStat) Name() string { return "dnsstat" }
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