128 lines
4.6 KiB
Ruby
128 lines
4.6 KiB
Ruby
# frozen_string_literal: true
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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.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 = Gitlab::AppLogger
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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_after(Labkit::Middleware::Rack, Gitlab::Metrics::RequestsRackMiddleware)
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end
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if Gitlab::Runtime.sidekiq? && (!ENV['SIDEKIQ_WORKER_ID'] || ENV['SIDEKIQ_WORKER_ID'] == '0')
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# The single worker outside of a sidekiq-cluster, or the first worker (sidekiq_0)
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# in a cluster of processes, is responsible for serving health checks.
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#
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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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Sidekiq.configure_server do |config|
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config.on(:startup) do
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# In https://gitlab.com/gitlab-org/gitlab/-/issues/345804 we are looking to
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# only serve health-checks from a worker process; for backwards compatibility
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# we still go through the metrics exporter server, but start to configure it
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# with the new settings keys.
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exporter_settings = Settings.monitoring.sidekiq_health_checks
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Gitlab::Metrics::Exporter::SidekiqExporter.instance(exporter_settings).start
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end
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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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# When running Puma in a Single mode, `on_master_start` and `on_worker_start` are the same.
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# Thus, we order these events to run `reinitialize_on_pid_change` with `force: true` first.
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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.puma?
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Gitlab::Metrics::Samplers::PumaSampler.instance.start
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end
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Gitlab::Metrics.gauge(:deployments, 'GitLab Version', {}, :max).set({ version: Gitlab::VERSION, revision: Gitlab.revision }, 1)
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if Gitlab::Runtime.web_server?
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Gitlab::Metrics::RequestsRackMiddleware.initialize_metrics
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end
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Gitlab::Ci::Parsers.instrument!
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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_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.start
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Gitlab::Metrics::Samplers::DatabaseSampler.initialize_instance.start
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Gitlab::Metrics::Samplers::ThreadsSampler.initialize_instance.start
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if Gitlab::Runtime.web_server?
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Gitlab::Metrics::Samplers::ActionCableSampler.instance.start
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end
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if Gitlab.ee? && Gitlab::Runtime.sidekiq?
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Gitlab::Metrics::Samplers::GlobalSearchSampler.instance.start
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end
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Gitlab::Ci::Parsers.instrument!
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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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