scenarios/workload-genai/policies/fragments/load-balancing/simple-priority-weighted.xml

<!-- 
    Policy fragment to implement a load balancing algorithm.

    Expected named values
    - The Pool backed that load balances the endpoints.
 -->
<fragment>
    <!-- MSI authentication to the backends-->
    <authentication-managed-identity resource="https://cognitiveservices.azure.com" output-token-variable-name="msi-access-token" client-id="{{apim-identity}}" ignore-error="false" />
    <set-header name="Authorization" exists-action="override">
        <value>@("Bearer " + (string)context.Variables["msi-access-token"])</value>
    </set-header>
    <set-backend-service id="apim-generated-policy" backend-id="aoai-lb-pool" />
</fragment>