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Thank you. In our use case we are running in a bare metal k8s cluster with the Pulsar Proxy exposing the services. But we don't have an external load balancer. We were hoping to use HAProxy to route traffic to the internal Pulsar Proxy. In the link you provided, there is no Pulsar Proxy, right?

You can use pulsar proxy before broker. if you are running pulsar on real bare metal, you can setup virtual ip on router/switch.