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jcsf avatar jcsf commented on June 3, 2024

There is no information actively sent. What that allows is for the engineering team to query cloudflared if necessary, for example if a client is currently facing an issue and reaches out to our support. By querying I mean:

  • Scrape the metrics
  • Take go routine and/or heap dumps of cloudflared process
    if enableDiagServices {
    // Prometheus endpoint
    r.With(corsHandler).Get("/metrics", s.metricsHandler.ServeHTTP)
    // Supports only heap and goroutine
    r.With(corsHandler).Get("/debug/pprof/{profile:heap|goroutine}", pprof.Index)
    }

Remember that anyone can still disable it by setting the flag to false: --management-diagnostics=false (or env TUNNEL_MANAGEMENT_DIAGNOSTICS)

from cloudflared.

user8446 avatar user8446 commented on June 3, 2024

Thank you, I appreciate the clarification.

from cloudflared.

luckman212 avatar luckman212 commented on June 3, 2024

@jcsf Sorry to bother you. I didn't want to open a whole new issue for this small question:

Unless overridden with TUNNEL_METRICS environment variable or --metrics argument, is the local port binding for the metrics endpoint randomly assigned? (it seems to be...)

from cloudflared.

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