102 lines
3.5 KiB
Ruby
102 lines
3.5 KiB
Ruby
require 'prometheus/client'
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# Keep separate directories for separate processes
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def prometheus_default_multiproc_dir
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return unless Rails.env.development? || Rails.env.test?
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if Gitlab::Runtime.sidekiq?
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Rails.root.join('tmp/prometheus_multiproc_dir/sidekiq')
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elsif Gitlab::Runtime.unicorn?
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Rails.root.join('tmp/prometheus_multiproc_dir/unicorn')
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elsif Gitlab::Runtime.puma?
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Rails.root.join('tmp/prometheus_multiproc_dir/puma')
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else
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Rails.root.join('tmp/prometheus_multiproc_dir')
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end
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end
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Prometheus::Client.configure do |config|
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config.logger = Rails.logger # rubocop:disable Gitlab/RailsLogger
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config.initial_mmap_file_size = 4 * 1024
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config.multiprocess_files_dir = ENV['prometheus_multiproc_dir'] || prometheus_default_multiproc_dir
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config.pid_provider = Prometheus::PidProvider.method(:worker_id)
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end
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Gitlab::Application.configure do |config|
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# 0 should be Sentry to catch errors in this middleware
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config.middleware.insert(1, Gitlab::Metrics::RequestsRackMiddleware)
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end
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Sidekiq.configure_server do |config|
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config.on(:startup) do
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# Do not clean the metrics directory here - the supervisor script should
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# have already taken care of that
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Gitlab::Metrics::Exporter::SidekiqExporter.instance.start
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end
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end
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if !Rails.env.test? && Gitlab::Metrics.prometheus_metrics_enabled?
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Gitlab::Cluster::LifecycleEvents.on_worker_start do
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defined?(::Prometheus::Client.reinitialize_on_pid_change) && Prometheus::Client.reinitialize_on_pid_change
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Gitlab::Metrics::Samplers::RubySampler.initialize_instance(Settings.monitoring.ruby_sampler_interval).start
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rescue IOError => e
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Gitlab::ErrorTracking.track_exception(e)
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Gitlab::Metrics.error_detected!
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end
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Gitlab::Cluster::LifecycleEvents.on_master_start do
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::Prometheus::Client.reinitialize_on_pid_change(force: true)
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if Gitlab::Runtime.unicorn?
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Gitlab::Metrics::Samplers::UnicornSampler.instance(Settings.monitoring.unicorn_sampler_interval).start
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elsif Gitlab::Runtime.puma?
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Gitlab::Metrics::Samplers::PumaSampler.instance(Settings.monitoring.puma_sampler_interval).start
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end
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Gitlab::Metrics::RequestsRackMiddleware.initialize_http_request_duration_seconds
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rescue IOError => e
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Gitlab::ErrorTracking.track_exception(e)
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Gitlab::Metrics.error_detected!
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end
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end
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if Gitlab::Runtime.web_server?
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Gitlab::Cluster::LifecycleEvents.on_master_start do
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Gitlab::Metrics::Exporter::WebExporter.instance.start
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end
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# DEPRECATED: TO BE REMOVED
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# This is needed to implement blackout period of `web_exporter`
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# https://gitlab.com/gitlab-org/gitlab/issues/35343#note_238479057
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Gitlab::Cluster::LifecycleEvents.on_before_blackout_period do
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Gitlab::Metrics::Exporter::WebExporter.instance.mark_as_not_running!
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end
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Gitlab::Cluster::LifecycleEvents.on_before_graceful_shutdown do
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# We need to ensure that before we re-exec or shutdown server
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# we do stop the exporter
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Gitlab::Metrics::Exporter::WebExporter.instance.stop
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end
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Gitlab::Cluster::LifecycleEvents.on_before_master_restart do
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# We need to ensure that before we re-exec server
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# we do stop the exporter
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#
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# We do it again, for being extra safe,
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# but it should not be needed
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Gitlab::Metrics::Exporter::WebExporter.instance.stop
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end
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Gitlab::Cluster::LifecycleEvents.on_worker_start do
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# The `#close_on_exec=` takes effect only on `execve`
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# but this does not happen for Ruby fork
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#
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# This does stop server, as it is running on master.
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Gitlab::Metrics::Exporter::WebExporter.instance.stop
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end
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end
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