You define a custom health probe to help the application gateway determine that the service is alive and should forward requests. API Management only responds to requests with the correct host header, so the default probes fail.
Custom health probe: Application Gateway, by default, uses IP address-based probes to figure out which servers in BackendAddressPool are active. Rule: The rule binds a listener to a back-end server pool. Listener: The listener has a front-end port, a protocol (Http or Https, these values are case sensitive), and the TLS/SSL certificate name (if configuring TLS offload). Traffic that hits it gets redirected to one of the back-end servers. Front-end port: This public port is opened on the application gateway. These settings are applied to all servers within the pool. Back-end server pool settings: Every pool has settings like port, protocol, and cookie-based affinity. Back-end server pool: This server pool is the internal virtual IP address of API Management. What's required to integrate API Management and Application Gateway? In the example, the internal consumers are highlighted in orange. High-performance connectivity can be delivered via Azure ExpressRoute circuits. Internal consumers can access all your internal and external APIs. In the first setup example, all your APIs are managed only from within your virtual network. In the example, the APIs are highlighted in green. You'll also understand how to expose only a subset of your APIs for external consumption by using routing functionality available in Application Gateway. 
You'll create an API Management instance of the newer single-tenant version 2 (stv2) type. In this article, you learn how to use a single API Management instance for internal and external consumers and make it act as a single front end for both on-premises and cloud APIs. If you haven't already, install Azure PowerShell. For testing purposes, optionally generate self-signed certificates. A CER file for the root certificate of the PFX certificates.įor more information, see Certificates for the back end.PFX files for API Management's custom host names: gateway, developer portal, and management endpoint.If you don't have an Azure subscription, create an Azure free account before you begin. To follow the steps described in this article, you must have: To learn how to migrate to the Az PowerShell module, see Migrate Azure PowerShell from AzureRM to Az. See Install Azure PowerShell to get started. We recommend that you use the Azure Az PowerShell module to interact with Azure.
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