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cmd/derpprobe,prober: add ability to restrict derpprobe to a single region

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Updates #24522

Co-authored-by: Mario Minardi <mario@tailscale.com>
Signed-off-by: Percy Wegmann <percy@tailscale.com>
This commit is contained in:
Percy Wegmann
2024-11-14 14:21:30 -06:00
committed by Percy Wegmann
parent c3c4c05331
commit 1355f622be
3 changed files with 56 additions and 2 deletions
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4
cmd/derpprobe/derpprobe.go
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@@ -29,6 +29,7 @@ var (
tlsInterval = flag.Duration("tls-interval", 15*time.Second, "TLS probe interval")
bwInterval = flag.Duration("bw-interval", 0, "bandwidth probe interval (0 = no bandwidth probing)")
bwSize = flag.Int64("bw-probe-size-bytes", 1_000_000, "bandwidth probe size")
regionCode = flag.String("region-code", "", "probe only this region (e.g. 'lax'); if left blank, all regions will be probed")
)
func main() {
@@ -47,6 +48,9 @@ func main() {
if *bwInterval > 0 {
opts = append(opts, prober.WithBandwidthProbing(*bwInterval, *bwSize))
}
if *regionCode != "" {
opts = append(opts, prober.WithRegion(*regionCode))
}
dp, err := prober.DERP(p, *derpMapURL, opts...)
if err != nil {
log.Fatal(err)