Apigee Adapter for Envoy overview

This page applies to Apigee and Apigee hybrid.

View Apigee Edge documentation.

What is Apigee Adapter for Envoy?

Apigee Adapter for Envoy is an Apigee-managed API gateway that uses Envoy to proxy API traffic. Envoy is a popular, open source edge and service proxy designed for cloud-native applications. You can run Apigee Adapter for Envoy on premises or in a multi-cloud environment.

With Apigee Adapter for Envoy, you get a relatively small footprint API gateway application running close to your backend applications. Apigee Adapter for Envoy relies on Apigee for:

Installation options

You can use the Apigee Adapter for Envoy in the following context:

Apigee Adapter for Envoy

The following figure shows the high level architecture for Apigee Adapter for Envoy. This architecture consists of management plane components deployed on Google Cloud Platform (GCP) and data plane components running remotely on premises or in a cloud provider environment. The data plane includes the Envoy proxy and Apigee Remote Service. The role of each component is described following the figure.

A high-level
  view of the Envoy Adapter integrated into an Apigee hybrid environment, including the management plane, runtime plane, and GCP services

  1. A consumer or client app accesses an API endpoint exposed by the Envoy proxy.
  2. The Envoy proxy passes the security context (using HTTP headers) to the Apigee Remote Service. The Apigee Remote Service acts as a policy decision point (PDP) and advises Envoy to allow or deny access to the API consumer for the request.
  3. If the call is allowed, the Envoy proxy forwards the request to the backend.
  4. The Apigee Remote Service asynchronously polls the management plane and downloads proxy, API product, and other configuration that it needs to operate.

Why use Apigee Adapter for Envoy?

Moving the API management component close to backend target applications can reduce network latency. While you can install Apigee on-premises in a private cloud, a full deployment of Apigee is necessarily large and complex to support its full feature-set and data-heavy features like key management, monetization, and analytics. This means that deploying Apigee on premises in each data-center is not always desirable.

Benefits of using Apigee Adapter for Envoy include:

Next step

Install Apigee Adapter for Envoy