Add prometheus metrics for Central controllers (#1969)
* 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>
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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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// use prometheus namespace
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using namespace prometheus;
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// for clarity, we deduce the required types
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using IntegerCounter = Counter<uint64_t>;
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using FloatingCounter = Counter<double>;
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using IntegerCounterFamily = CustomFamily<IntegerCounter>;
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using FloatingCounterFamily = CustomFamily<FloatingCounter>;
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// create global registry for use it from our classes
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static Registry globalRegistry;
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class MyClass {
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IntegerCounterFamily& counterFamily1 { IntegerCounter::Family::Build(globalRegistry,
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"counter_family_1", "counter for check integer functionality",
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{{"type","integer"}} ) };
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IntegerCounter& counter11{ counterFamily1.Add({{"number", "1"}}) };
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IntegerCounter& counter12{ counterFamily1.Add({{"number", "2"}}) };
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IntegerCounter& counter13{ counterFamily1.Add({{"number", "3"}}) };
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FloatingCounterFamily& counterFamily2 { FloatingCounter::Family::Build(globalRegistry,
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"counter_family_2", "counter for check floating functionality",
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{{"type","float"}} ) };
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FloatingCounter& counter21{ counterFamily2.Add({{"number", "1"}}) };
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FloatingCounter& counter22{ counterFamily2.Add({{"number", "2"}}) };
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FloatingCounter& counter23{ counterFamily2.Add({{"number", "3"}}) };
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public:
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MyClass() = default;
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void member_to_do_something() {
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const int random_value = std::rand();
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if (random_value & 1) counter11++;
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if (random_value & 2) counter12++;
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if (random_value & 4) counter13++;
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if (random_value & 8) counter21++;
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if (random_value & 16) counter22++;
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if (random_value & 32) counter23++;
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}
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};
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int main() {
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MyClass myClass;
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for (;; ) {
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std::this_thread::sleep_for(std::chrono::seconds(1));
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myClass.member_to_do_something();
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TextSerializer text_serializer;
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text_serializer.Serialize(std::cout, globalRegistry.Collect());
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}
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}
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