admin commands are:
  /: Admin home page
  /certs: print certs on machine
  /clusters: upstream cluster status
  /config_dump: dump current Envoy configs (experimental)
      resource: The resource to dump
      mask: The mask to apply. When both resource and mask are specified, the mask is applied to every element in the desired repeated field so that only a subset of fields are returned. The mask is parsed as a ProtobufWkt::FieldMask
      name_regex: Dump only the currently loaded configurations whose names match the specified regex. Can be used with both resource and mask query parameters.
      include_eds: Dump currently loaded configuration including EDS. See the response definition for more information
  /contention: dump current Envoy mutex contention stats (if enabled)
  /cpuprofiler (POST): enable/disable the CPU profiler
      enable: enables the CPU profiler; One of (y, n)
  /drain_listeners (POST): drain listeners
      graceful: When draining listeners, enter a graceful drain period prior to closing listeners. This behaviour and duration is configurable via server options or CLI
      skip_exit: When draining listeners, do not exit after the drain period. This must be used with graceful
      inboundonly: Drains all inbound listeners. traffic_direction field in envoy_v3_api_msg_config.listener.v3.Listener is used to determine whether a listener is inbound or outbound.
  /healthcheck/fail (POST): cause the server to fail health checks
  /healthcheck/ok (POST): cause the server to pass health checks
  /heap_dump: dump current Envoy heap (if supported)
  /heapprofiler (POST): enable/disable the heap profiler
      enable: enable/disable the heap profiler; One of (y, n)
  /help: print out list of admin commands
  /hot_restart_version: print the hot restart compatibility version
  /init_dump: dump current Envoy init manager information (experimental)
      mask: The desired component to dump unready targets. The mask is parsed as a ProtobufWkt::FieldMask. For example, get the unready targets of all listeners with /init_dump?mask=listener`
  /listeners: print listener info
      format: File format to use; One of (text, json)
  /logging (POST): query/change logging levels
      paths: Change multiple logging levels by setting to <logger_name1>:<desired_level1>,<logger_name2>:<desired_level2>.
      level: desired logging level; One of (, trace, debug, info, warning, error, critical, off)
  /memory: print current allocation/heap usage
  /quitquitquit (POST): exit the server
  /ready: print server state, return 200 if LIVE, otherwise return 503
  /reopen_logs (POST): reopen access logs
  /reset_counters (POST): reset all counters to zero
  /runtime: print runtime values
  /runtime_modify (POST): Adds or modifies runtime values as passed in query parameters. To delete a previously added key, use an empty string as the value. Note that deletion only applies to overrides added via this endpoint; values loaded from disk can be modified via override but not deleted. E.g. ?key1=value1&key2=value2...
  /server_info: print server version/status information
  /stats: print server stats
      usedonly: Only include stats that have been written by system since restart
      filter: Regular expression (Google re2) for filtering stats
      format: Format to use; One of (html, active-html, text, json)
      type: Stat types to include.; One of (All, Counters, Histograms, Gauges, TextReadouts)
      histogram_buckets: Histogram bucket display mode; One of (cumulative, disjoint, detailed, summary)
  /stats/prometheus: print server stats in prometheus format
      usedonly: Only include stats that have been written by system since restart
      text_readouts: Render text_readouts as new gaugues with value 0 (increases Prometheus data size)
      filter: Regular expression (Google re2) for filtering stats
      histogram_buckets: Histogram bucket display mode; One of (cumulative, summary)
  /stats/recentlookups: Show recent stat-name lookups
  /stats/recentlookups/clear (POST): clear list of stat-name lookups and counter
  /stats/recentlookups/disable (POST): disable recording of reset stat-name lookup names
  /stats/recentlookups/enable (POST): enable recording of reset stat-name lookup names