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cmd/lopower: expose metrics and tsnet logs

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This commit is contained in:
Anton Tolchanov 2025-05-08 06:42:21 +01:00
parent e83fe9a762
commit 008a35c677
1 changed files with 12 additions and 0 deletions
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12
cmd/lopower/lopower.go
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@ -51,10 +51,12 @@ import (
"tailscale.com/net/tsaddr" "tailscale.com/net/tsaddr"
"tailscale.com/syncs" "tailscale.com/syncs"
"tailscale.com/tsnet" "tailscale.com/tsnet"
"tailscale.com/tsweb/varz"
"tailscale.com/types/dnstype" "tailscale.com/types/dnstype"
"tailscale.com/types/ipproto" "tailscale.com/types/ipproto"
"tailscale.com/types/key" "tailscale.com/types/key"
"tailscale.com/types/logger" "tailscale.com/types/logger"
"tailscale.com/util/clientmetric"
"tailscale.com/util/must" "tailscale.com/util/must"
"tailscale.com/wgengine/wgcfg" "tailscale.com/wgengine/wgcfg"
) )
@ -68,6 +70,7 @@ var (
includeV4 = flag.Bool("include-v4", true, "include IPv4 (CGNAT) in the WireGuard configuration; incompatible with some carriers. IPv6 is always included.") includeV4 = flag.Bool("include-v4", true, "include IPv4 (CGNAT) in the WireGuard configuration; incompatible with some carriers. IPv6 is always included.")
verbosePackets = flag.Bool("verbose-packets", false, "log packet contents") verbosePackets = flag.Bool("verbose-packets", false, "log packet contents")
verboseDNS = flag.Bool("verbose-dns", false, "log DNS queries") verboseDNS = flag.Bool("verbose-dns", false, "log DNS queries")
verboseTsnet = flag.Bool("verbose-tsnet", false, "print tsnet logs")
) )
type config struct { type config struct {
@ -541,6 +544,12 @@ func (lp *lpServer) serveQR() {
log.Printf("# Serving QR code at http://%s/", ln.Addr()) log.Printf("# Serving QR code at http://%s/", ln.Addr())
hs := &http.Server{ hs := &http.Server{
Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/metrics" {
w.Header().Set("Content-Type", "text/plain")
varz.Handler(w, r)
clientmetric.WritePrometheusExpositionFormat(w)
return
}
if r.URL.Path != "/" { if r.URL.Path != "/" {
http.NotFound(w, r) http.NotFound(w, r)
return return
@ -642,6 +651,9 @@ func (lp *lpServer) startTSNet(ctx context.Context) {
UserLogf: log.Printf, UserLogf: log.Printf,
Ephemeral: false, Ephemeral: false,
} }
if *verboseTsnet {
ts.Logf = log.Printf
}
lp.tsnet = ts lp.tsnet = ts
ts.PreStart = func() error { ts.PreStart = func() error {
dnsMgr := ts.Sys().DNSManager.Get() dnsMgr := ts.Sys().DNSManager.Get()