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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ext/prometheus-cpp-lite-1.0/examples/simpleapi_example.cpp
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ext/prometheus-cpp-lite-1.0/examples/simpleapi_example.cpp
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#include <prometheus/simpleapi.h>
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int main() {
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using namespace prometheus::simpleapi;
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counter_family_t family { "simple_family", "simple family example" };
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counter_metric_t metric1 { family.Add({{"name", "counter1"}}) };
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counter_metric_t metric2 { family.Add({{"name", "counter2"}}) };
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counter_metric_t metric3 { "simple_counter_1", "simple counter 1 without labels example" };
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counter_metric_t metric4 { "simple_counter_2", "simple counter 2 without labels example" };
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for (;; ) {
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std::this_thread::sleep_for(std::chrono::seconds(1));
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const int random_value = std::rand();
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if (random_value & 1) metric1++;
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if (random_value & 2) metric2++;
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if (random_value & 4) metric3++;
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if (random_value & 8) metric4++;
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}
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//return 0;
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}
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