head: |
  <!-- Elastic APM RUM -->
  <script async src="https://unpkg.com/@elastic/apm-rum/dist/bundles/elastic-apm-rum.umd.min.js"></script>
  <script>
    elasticApm.init({
      serviceName: '{{serviceName}}',
      serverUrl: '{{serverUrl}}',
      environment: '{{environment}}'
    })
  </script>