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cmd/derpprobe: allow running all probes at the same time

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This allows disabling spread mode, which is helpful if you are manually
running derpprobe in `--once` mode against a small number of DERP
machines.

Updates https://github.com/tailscale/corp/issues/9916

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
This commit is contained in:
Anton Tolchanov 2023-03-20 15:14:05 +00:00 committed by Anton Tolchanov
parent e59dc29a55
commit 50d211d1a4
1 changed files with 2 additions and 1 deletions
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3
cmd/derpprobe/derpprobe.go
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@ -23,13 +23,14 @@
derpMapURL = flag.String("derp-map", "https://login.tailscale.com/derpmap/default", "URL to DERP map (https:// or file://)")
listen = flag.String("listen", ":8030", "HTTP listen address")
probeOnce = flag.Bool("once", false, "probe once and print results, then exit; ignores the listen flag")
spread = flag.Bool("spread", true, "whether to spread probing over time")
interval = flag.Duration("interval", 15*time.Second, "probe interval")
)
func main() {
flag.Parse()
p := prober.New().WithSpread(true).WithOnce(*probeOnce)
p := prober.New().WithSpread(*spread).WithOnce(*probeOnce)
dp, err := prober.DERP(p, *derpMapURL, *interval, *interval, *interval)
if err != nil {
log.Fatal(err)