ZeroTierOne/ext/prometheus-cpp-lite-1.0/examples/gateway_example.cpp
Grant Limberg 8e6e4ede6d
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 499ed6d95e.

* 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>
2023-04-21 12:12:43 -07:00

65 lines
1.7 KiB
C++

#include <chrono>
#include <iostream>
#include <memory>
#include <string>
#include <thread>
#include "prometheus/client_metric.h"
#include "prometheus/counter.h"
#include "prometheus/family.h"
#include "prometheus/gateway.h"
#include "prometheus/registry.h"
#ifdef _WIN32
#include <Winsock2.h>
#else
#include <unistd.h>
#endif
static std::string GetHostName() {
char hostname[1024];
if (::gethostname(hostname, sizeof(hostname))) {
return {};
}
return hostname;
}
int main() {
using namespace prometheus;
// create a push gateway
const auto labels = Gateway::GetInstanceLabel(GetHostName());
Gateway gateway{"127.0.0.1", "9091", "sample_client", labels};
// create a metrics registry with component=main labels applied to all its
// metrics
auto registry = std::make_shared<Registry>();
// add a new counter family to the registry (families combine values with the
// same name, but distinct label dimensions)
auto& counter_family = BuildCounter()
.Name("time_running_seconds_total")
.Help("How many seconds is this server running?")
.Labels({{"label", "value"}})
.Register(*registry);
// add a counter to the metric family
auto& second_counter = counter_family.Add(
{{"another_label", "value"}, {"yet_another_label", "value"}});
// ask the pusher to push the metrics to the pushgateway
gateway.RegisterCollectable(registry);
for (;;) {
std::this_thread::sleep_for(std::chrono::seconds(1));
// increment the counter by one (second)
second_counter.Increment();
// push metrics
auto returnCode = gateway.Push();
std::cout << "returnCode is " << returnCode << std::endl;
}
}