mirror of
https://github.com/zerotier/ZeroTierOne.git
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8e6e4ede6d
* add header-only prometheus lib to ext * rename folder * Undo rename directory * prometheus simpleapi included on mac & linux * wip * wire up some controller stats * Get windows building with prometheus * bsd build flags for prometheus * Fix multiple network join from environment entrypoint.sh.release (#1961) * _bond_m guards _bond, not _paths_m (#1965) * Fix: warning: mutex '_aqm_m' is not held on every path through here [-Wthread-safety-analysis] (#1964) * Serve prom metrics from /metrics endpoint * Add prom metrics for Central controller specific things * reorganize metric initialization * testing out a labled gauge on Networks * increment error counter on throw * Consolidate metrics definitions Put all metric definitions into node/Metrics.hpp. Accessed as needed from there. * Revert "testing out a labled gauge on Networks" This reverts commit 499ed6d95e11452019cdf48e32ed4cd878c2705b. * still blows up but adding to the record for completeness right now * Fix runtime issues with metrics * Add metrics files to visual studio project * Missed an "extern" * add copyright headers to new files * Add metrics for sent/received bytes (total) * put /metrics endpoint behind auth * sendto returns int on Win32 --------- Co-authored-by: Leonardo Amaral <leleobhz@users.noreply.github.com> Co-authored-by: Brenton Bostick <bostick@gmail.com>
68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
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#include <prometheus/registry.h>
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#include <prometheus/counter.h>
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#include <prometheus/text_serializer.h>
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#include <array>
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#include <chrono>
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#include <cstdlib>
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#include <memory>
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#include <string>
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#include <thread>
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#include <iostream>
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int main() {
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using namespace prometheus;
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// create a metrics registry
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// @note it's the users responsibility to keep the object alive
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auto registry = std::make_shared<Registry>();
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// add a new counter family to the registry (families combine values with the
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// same name, but distinct label dimensions)
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//
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// @note please follow the metric-naming best-practices:
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// https://prometheus.io/docs/practices/naming/
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auto& packet_counter = BuildCounter()
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.Name("observed_packets_total")
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.Help("Number of observed packets")
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.Register(*registry);
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// add and remember dimensional data, incrementing those is very cheap
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auto& tcp_rx_counter = packet_counter.Add({ {"protocol", "tcp"}, {"direction", "rx"} });
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auto& tcp_tx_counter = packet_counter.Add({ {"protocol", "tcp"}, {"direction", "tx"} });
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auto& udp_rx_counter = packet_counter.Add({ {"protocol", "udp"}, {"direction", "rx"} });
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auto& udp_tx_counter = packet_counter.Add({ {"protocol", "udp"}, {"direction", "tx"} });
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// add a counter whose dimensional data is not known at compile time
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// nevertheless dimensional values should only occur in low cardinality:
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// https://prometheus.io/docs/practices/naming/#labels
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auto& http_requests_counter = BuildCounter()
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.Name("http_requests_total")
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.Help("Number of HTTP requests")
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.Register(*registry);
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// ask the exposer to scrape the registry on incoming HTTP requests
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//exposer.RegisterCollectable(registry);
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for ( ;; ) {
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std::this_thread::sleep_for(std::chrono::seconds(1));
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const auto random_value = std::rand();
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if (random_value & 1) tcp_rx_counter.Increment();
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if (random_value & 2) tcp_tx_counter.Increment();
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if (random_value & 4) udp_rx_counter.Increment(10);
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if (random_value & 8) udp_tx_counter.Increment(10);
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const std::array<std::string, 4> methods = { "GET", "PUT", "POST", "HEAD" };
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auto method = methods.at(static_cast<std::size_t>(random_value) % methods.size());
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// dynamically calling Family<T>.Add() works but is slow and should be avoided
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http_requests_counter.Add({ {"method", method} }).Increment();
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TextSerializer text_serializer;
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text_serializer.Serialize(std::cout, registry->Collect());
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}
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}
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