debian-mirror-gitlab/lib/gitlab/metrics/background_transaction.rb

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# frozen_string_literal: true
module Gitlab
module Metrics
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# Exclusive transaction-type metrics for background jobs (Sidekiq). One
# instance of this class is created for each job going through the Sidekiq
# metric middleware. Any metrics dispatched with this instance include
# metadata such as endpoint_id, queue, and feature category.
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class BackgroundTransaction < Transaction
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THREAD_KEY = :_gitlab_metrics_background_transaction
BASE_LABEL_KEYS = %i(queue endpoint_id feature_category).freeze
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class << self
def current
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Thread.current[THREAD_KEY]
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end
def prometheus_metric(name, type, &block)
fetch_metric(type, name) do
# set default metric options
docstring "#{name.to_s.humanize} #{type}"
evaluate(&block)
# always filter sensitive labels and merge with base ones
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label_keys BASE_LABEL_KEYS | (label_keys - ::Gitlab::Metrics::Transaction::FILTERED_LABEL_KEYS)
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end
end
end
def run
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Thread.current[THREAD_KEY] = self
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yield
ensure
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Thread.current[THREAD_KEY] = nil
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end
def labels
@labels ||= {
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endpoint_id: endpoint_id,
feature_category: feature_category,
queue: queue
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}
end
private
def current_context
Labkit::Context.current
end
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def feature_category
current_context&.get_attribute(:feature_category)
end
def endpoint_id
current_context&.get_attribute(:caller_id)
end
def queue
worker_class = endpoint_id.to_s.safe_constantize
return if worker_class.blank? || !worker_class.respond_to?(:queue)
worker_class.queue.to_s
end
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end
end
end