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