59 lines
1.7 KiB
Ruby
59 lines
1.7 KiB
Ruby
require 'prometheus/client'
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# rubocop:disable Cop/ModuleWithInstanceVariables
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module Gitlab
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module Metrics
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module Prometheus
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include Gitlab::CurrentSettings
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def metrics_folder_present?
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multiprocess_files_dir = ::Prometheus::Client.configuration.multiprocess_files_dir
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multiprocess_files_dir &&
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::Dir.exist?(multiprocess_files_dir) &&
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::File.writable?(multiprocess_files_dir)
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end
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def prometheus_metrics_enabled?
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return @prometheus_metrics_enabled if defined?(@prometheus_metrics_enabled)
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@prometheus_metrics_enabled = prometheus_metrics_enabled_unmemoized
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end
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def registry
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@registry ||= ::Prometheus::Client.registry
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end
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def counter(name, docstring, base_labels = {})
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provide_metric(name) || registry.counter(name, docstring, base_labels)
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end
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def summary(name, docstring, base_labels = {})
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provide_metric(name) || registry.summary(name, docstring, base_labels)
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end
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def gauge(name, docstring, base_labels = {}, multiprocess_mode = :all)
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provide_metric(name) || registry.gauge(name, docstring, base_labels, multiprocess_mode)
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end
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def histogram(name, docstring, base_labels = {}, buckets = ::Prometheus::Client::Histogram::DEFAULT_BUCKETS)
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provide_metric(name) || registry.histogram(name, docstring, base_labels, buckets)
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end
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def provide_metric(name)
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if prometheus_metrics_enabled?
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registry.get(name)
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else
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NullMetric.new
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end
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end
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private
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def prometheus_metrics_enabled_unmemoized
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metrics_folder_present? && current_application_settings[:prometheus_metrics_enabled] || false
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end
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end
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end
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end
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