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tsweb: replace NewMux with a more flexible DebugHandler.

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Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson
2021-06-15 23:38:19 -07:00
committed by Dave Anderson
parent b461ba9554
commit 0022c3d2e2
5 changed files with 339 additions and 83 deletions
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23
cmd/microproxy/microproxy.go
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@ -55,7 +55,8 @@ func main() {
log.Fatalf("Couldn't parse URL %q: %v", *goVarsURL, err)
}
mux := tsweb.NewMux(http.HandlerFunc(debugHandler))
mux := http.NewServeMux()
tsweb.Debugger(mux) // registers /debug/*
mux.Handle("/metrics", tsweb.Protected(proxy))
mux.Handle("/varz", tsweb.Protected(tsweb.StdHandler(&goVarsHandler{*goVarsURL}, tsweb.HandlerOptions{
Quiet200s: true,
@ -170,23 +171,3 @@ func (c *certHolder) loadLocked() error {
c.loaded = time.Now()
return nil
}
// debugHandler serves a page with links to tsweb-managed debug URLs
// at /debug/.
func debugHandler(w http.ResponseWriter, r *http.Request) {
f := func(format string, args ...interface{}) { fmt.Fprintf(w, format, args...) }
f(`<html><body>
<h1>microproxy debug</h1>
<ul>
`)
f("<li><b>Hostname:</b> %v</li>\n", *hostname)
f("<li><b>Uptime:</b> %v</li>\n", tsweb.Uptime())
f(`<li><a href="/debug/vars">/debug/vars</a> (Go)</li>
<li><a href="/debug/varz">/debug/varz</a> (Prometheus)</li>
<li><a href="/debug/pprof/">/debug/pprof/</a></li>
<li><a href="/debug/pprof/goroutine?debug=1">/debug/pprof/goroutine</a> (collapsed)</li>
<li><a href="/debug/pprof/goroutine?debug=2">/debug/pprof/goroutine</a> (full)</li>
<ul>
</html>
`)
}