24 lines
794 B
Go
24 lines
794 B
Go
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// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package metrics contains expvar & Prometheus types and code used by
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// Tailscale for monitoring.
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package metrics
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import "expvar"
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// Map is a string-to-Var map variable that satisfies the expvar.Var
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// interface.
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//
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// Semantically, this is mapped by tsweb's Prometheus exporter as a
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// collection of unrelated variables exported with a common prefix.
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//
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// This lets us have tsweb recognize *expvar.Map for different
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// purposes in the future. (Or perhaps all uses of expvar.Map will
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// require explicit types like this one, declaring how we want tsweb
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// to export it to Prometheus.)
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type Set struct {
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expvar.Map
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}
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