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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node/Metrics.hpp
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node/Metrics.hpp
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/*
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* Copyright (c)2013-2023 ZeroTier, Inc.
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file in the project's root directory.
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*
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* Change Date: 2025-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2.0 of the Apache License.
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*/
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#ifndef METRICS_H_
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#define METRICS_H_
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#include <prometheus/simpleapi.h>
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namespace prometheus {
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namespace simpleapi {
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extern std::shared_ptr<Registry> registry_ptr;
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}
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}
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namespace ZeroTier {
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namespace Metrics {
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// Data Sent/Received Metrics
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extern prometheus::simpleapi::counter_metric_t udp_send;
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extern prometheus::simpleapi::counter_metric_t udp_recv;
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extern prometheus::simpleapi::counter_metric_t tcp_send;
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extern prometheus::simpleapi::counter_metric_t tcp_recv;
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// General Controller Metrics
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extern prometheus::simpleapi::gauge_metric_t network_count;
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extern prometheus::simpleapi::gauge_metric_t member_count;
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extern prometheus::simpleapi::counter_metric_t network_changes;
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extern prometheus::simpleapi::counter_metric_t member_changes;
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extern prometheus::simpleapi::counter_metric_t member_auths;
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extern prometheus::simpleapi::counter_metric_t member_deauths;
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#ifdef ZT_CONTROLLER_USE_LIBPQ
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// Central Controller Metrics
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extern prometheus::simpleapi::counter_metric_t pgsql_mem_notification;
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extern prometheus::simpleapi::counter_metric_t pgsql_net_notification;
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extern prometheus::simpleapi::counter_metric_t redis_mem_notification;
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extern prometheus::simpleapi::counter_metric_t redis_net_notification;
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// Central DB Pool Metrics
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extern prometheus::simpleapi::counter_metric_t conn_counter;
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extern prometheus::simpleapi::counter_metric_t max_pool_size;
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extern prometheus::simpleapi::counter_metric_t min_pool_size;
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extern prometheus::simpleapi::gauge_metric_t pool_avail;
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extern prometheus::simpleapi::gauge_metric_t pool_in_use;
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extern prometheus::simpleapi::counter_metric_t pool_errors;
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#endif
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} // namespace Metrics
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}// namespace ZeroTier
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#endif // METRICS_H_
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