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cmd/derpprobe: add -once flag for one-off CLI diagnostics

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Updates #6478

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2022-11-23 16:09:24 -08:00 committed by James Tucker
parent b1441d0044
commit dc75b7cfd1
1 changed files with 15 additions and 0 deletions
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15
cmd/derpprobe/derpprobe.go
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@ -35,6 +35,7 @@ import (
var ( var (
derpMapURL = flag.String("derp-map", "https://login.tailscale.com/derpmap/default", "URL to DERP map (https:// or file://)") 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") listen = flag.String("listen", ":8030", "HTTP listen address")
probeOnce = flag.Bool("once", false, "probe once and print results, then exit; ignores the listen flag")
) )
// certReissueAfter is the time after which we expect all certs to be // certReissueAfter is the time after which we expect all certs to be
@ -63,6 +64,20 @@ func main() {
defer cancel() defer cancel()
_, _ = getDERPMap(ctx) _, _ = getDERPMap(ctx)
if *probeOnce {
log.Printf("Starting probe (may take up to 1m)")
probe()
log.Printf("Probe results:")
st := getOverallStatus()
for _, s := range st.good {
log.Printf("good: %s", s)
}
for _, s := range st.bad {
log.Printf("bad: %s", s)
}
return
}
go probeLoop() go probeLoop()
go slackLoop() go slackLoop()
log.Fatal(http.ListenAndServe(*listen, http.HandlerFunc(serve))) log.Fatal(http.ListenAndServe(*listen, http.HandlerFunc(serve)))