 proxy in front of each. The <code>tcp-echo</code> workload listens on port
9000, 9001 and 9002 and echoes back any traffic it received with a prefix <code>hello</code>.
For example, if you send &ldquo;world&rdquo; to <code>tcp-echo</code>, it will reply with <code>hello world</code>.
The <code>tcp-echo</code> Kubernetes service object only declares the ports 9000 and 9001, and
omits the port 9002. A pass-through filter chain will handle port 9002 traffic.
Deploy the example namespace and workloads using th