Enable Custom Load-Balancer Probing on Azure Cloud Service

ServiceDefinition.csdef

<?xml version="1.0"?>
<ServiceDefinition name="Cloud" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceDefinition" schemaVersion="2015-04.2.6">
  <LoadBalancerProbes>
    <LoadBalancerProbe name="healthcheck" path="/healthcheck" protocol="http" port="80" intervalInSeconds="30" timeoutInSeconds="61" />
  </LoadBalancerProbes>
    <WebRole name="Web" vmsize="Large">
        <Sites>
            <Site name="Web">
                <Bindings>
                    <Binding name="Endpoint1" endpointName="httpIn" />
                    <Binding name="Endpoint1" endpointName="httpsIn" />
                </Bindings>
            </Site>
        </Sites>
        <Endpoints>
            <InputEndpoint name="httpIn" protocol="http" port="80" loadBalancerProbe="healthcheck" />
        </Endpoints>
    </WebRole>
</ServiceDefinition>