Supporting Multiple CFAR Instances

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This topic describes registering a service broker with multiple Cloud Foundry Application Runtime (CFAR) instances.

Overview

It may be necessary for the broker to know which CFAR instance is making a given request. For example, when using Dashboard Single Sign-On, the broker is expected to interact with the authorization and token endpoints for a given CFAR instance.

There are two strategies that can be used to discover which CFAR instance is making a given request.

Routing and Authentication

The broker can use unique credentials, a unique URL, or both for each CFAR instance. When registering the broker, you can configure different CFAR instances to use different base URLs that include a unique ID. For example:

• On CFAR instance 1, the service broker is registered with the URL broker.example.com/123.

• On CFAR instance 2, the service broker is registered with the URL broker.example.com/456.

X-Api-Info-Location Header

All calls to the broker from CFAR include an X-Api-Info-Location header containing the /v2/info URL for that instance. The /v2/info endpoint returns further information, including the location of that CFAR instance’s UAA.

Support for this header was introduced in cf-release v212.