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# frozen_string_literal: true
# Fetches the metrics dashboard layout and supplemented the output with DB info.
module Gitlab
module Metrics
module Dashboard
class Service < ::BaseService
SYSTEM_DASHBOARD_NAME = 'common_metrics'
SYSTEM_DASHBOARD_PATH = Rails.root.join('config', 'prometheus', "#{SYSTEM_DASHBOARD_NAME}.yml")
# Returns a DB-supplemented json representation of a dashboard config file.
def get_dashboard
dashboard_string = Rails.cache.fetch(cache_key) { system_dashboard }
dashboard = process_dashboard(dashboard_string)
success(dashboard: dashboard)
rescue Gitlab::Metrics::Dashboard::Stages::BaseStage::DashboardLayoutError => e
error(e.message, :unprocessable_entity)
end
private
# Returns the base metrics shipped with every GitLab service.
def system_dashboard
YAML.safe_load(File.read(SYSTEM_DASHBOARD_PATH))
end
def cache_key
"metrics_dashboard_#{SYSTEM_DASHBOARD_NAME}"
end
# Returns a new dashboard Hash, supplemented with DB info
def process_dashboard(dashboard)
Gitlab::Metrics::Dashboard::Processor.new(project, params[:environment]).process(dashboard)
end
end
end
end
end
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