Sidekiq ジョブ Telemetry

# config/initializers/telemetry_sidekiq.rb
require "sidekiq"
require "json"
require "net/http"
require "uri"

module TelemetrySidekiqAttempts
  def self.delivery_failed
    warn "Telemetry job event delivery failed."
  rescue StandardError
    # A broken diagnostic sink must not change the job outcome.
  end

  def self.log(fields)
    key = ENV["TELEMETRY_API_KEY"]
    return if key.nil? || key.empty?

    uri = URI("https://api.telemetry.sh/log")
    request = Net::HTTP::Post.new(uri)
    request["Authorization"] = key
    request["Content-Type"] = "application/json"
    request.body = { table: "job_attempt_completed", data: fields }.to_json
    http = Net::HTTP.new(uri.host, uri.port)
    http.use_ssl = true
    http.open_timeout = 1
    http.read_timeout = 1
    http.write_timeout = 1
    http.max_retries = 0
    response = http.start { |client| client.request(request) }
    delivery_failed unless response.is_a?(Net::HTTPSuccess)
  rescue StandardError
    delivery_failed
  end
end

class TelemetryOutcomeMiddleware
  include Sidekiq::ServerMiddleware

  def call(_job_instance, job, queue)
    started = Process.clock_gettime(Process::CLOCK_MONOTONIC)
    status = "not_returned"
    begin
      result = yield
      status = "returned"
      result
    rescue StandardError
      status = "raised"
      raise
    ensure
      begin
        retry_count = job["retry_count"]
        attempt = if !job.key?("retry_count")
          1
        elsif retry_count.is_a?(Integer) && retry_count >= 0
          retry_count + 2
        end
        TelemetrySidekiqAttempts.log({
          job_id: job["jid"],
          job_name: job["class"],
          queue_name: queue,
          attempt: attempt,
          status: status,
          duration_ms: ((Process.clock_gettime(
            Process::CLOCK_MONOTONIC
          ) - started) * 1000).round(2),
          release: ENV["APP_RELEASE"]
        })
      rescue StandardError
        TelemetrySidekiqAttempts.delivery_failed
      end
    end
  end
end

Sidekiq.configure_server do |config|
  config.server_middleware do |chain|
    chain.add TelemetryOutcomeMiddleware
  end
end