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Install the Python agent in GAE flexible environment

With the Python agent, you can monitor applications that reside in the Google App Engine (GAE) flexible environment. Adding agent data to your GAE flex app gives you insight into the health and performance of your app and extends GAE with metrics you can view in the New Relic UI.

This document explains how to add agent data to your GAE flex app using either of these methods:

Deploy using GAE's native support

When using Google App Engine "native mode" installation, you provide your app code and an app.yaml file. Google App Engine then deploys to a standard prebuilt Docker image.

For example, to deploy with native support for a Flask/Django app:

  1. Follow standard procedures to install the Python agent, including your .
  2. Set the NEW_RELIC_CONFIG_FILE as an environment variable pointing to newrelic.ini.

Once the agent and configuration file have been installed, the Python agent can automatically monitor applications that reside in the GAE flexible environment. Wait until the deployment completes, then view your GAE flex app data in the APM Summary page.

Build a custom runtime using Docker

See Google's documentation for building custom runtimes. This example describes how to add agent data to your GAE flex app by building a custom runtime for Docker.

For more information about deploying and configuring your Node.js app in the GAE flexible environment, see:

Recommendation: Disable health checks

Google App Engine sends periodic health check requests to confirm that an instance has been successfully deployed, and to check that a running instance maintains a healthy status. A health check is an HTTP request to the URL /_ah/health.

If you create a custom runtime, your app must be able to handle a large number of health check requests. Otherwise, your app data may not display correctly in APM.

Recommendation: Configure your app.yaml to disable health checks by adding:

enable_health_check: False

Get agent troubleshooting logs from GAE

Use these resources to troubleshoot your GAE flex environment app:

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