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# frozen_string_literal: true
module Gitlab
module Metrics
module Exporter
class WebExporter < BaseExporter
ExporterCheck = Struct.new(:exporter) do
def readiness
Gitlab::HealthChecks::Result.new(
'web_exporter', exporter.running)
end
def available?
true
end
end
RailsMetricsInitializer = Struct.new(:app) do
def call(env)
Gitlab::Metrics::RailsSlis.initialize_request_slis_if_needed!
app.call(env)
end
end
attr_reader :running
# This exporter is always run on master process
def initialize
super
# DEPRECATED:
# these `readiness_checks` are deprecated
# as presenting no value in a way how we run
# application: https://gitlab.com/gitlab-org/gitlab/issues/35343
self.readiness_checks = [
WebExporter::ExporterCheck.new(self),
Gitlab::HealthChecks::PumaCheck
]
end
def settings
Gitlab.config.monitoring.web_exporter
end
def log_filename
File.join(Rails.root, 'log', 'web_exporter.log')
end
def mark_as_not_running!
@running = false
end
private
def rack_app
app = super
Rack::Builder.app do
use RailsMetricsInitializer
run app
end
end
def start_working
@running = true
super
end
def stop_working
mark_as_not_running!
super
end
end
end
end
end
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