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Install the Go agent in GAE flexible environment

With our Go agent, you can monitor applications that reside in the Google App Engine (GAE) flexible environment. Adding New Relic 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 APM and .

Here we explain how to add New Relic to your GAE flex app by configuring a custom runtime, and give an example of deploying a Go app with Docker.


The Go agent can run in a GAE flexible environment using a custom runtime. Due to limitations of other environments, don't use the GAE standard environment or Google App Engine's "native mode" installation.

Build a custom runtime using Docker

See Google's documentation for building custom runtimes. This example describes how to add New Relic to your GAE flex app by installing the Go agent, building a custom Go runtime for Docker, and deploying a golang application.

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

Did this doc help with your installation?

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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