diegosalvi commented on a change in pull request #8686:
URL: https://github.com/apache/pulsar/pull/8686#discussion_r531149684



##########
File path: 
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/DirectProxyHandler.java
##########
@@ -143,10 +150,56 @@ protected void initChannel(SocketChannel ch) throws 
Exception {
                 inboundOutboundChannelMap.put(outboundChannel.id() , 
inboundChannel.id());
             }
 
-
+            if (config.isHaProxyProtocolEnabled()) {
+                if (proxyConnection.hasHAProxyMessage()) {
+                    
outboundChannel.writeAndFlush(encodeProxyProtocolMessage(proxyConnection.getHAProxyMessage()));
+                } else {
+                    if (inboundChannel.remoteAddress() instanceof 
InetSocketAddress) {
+                        InetSocketAddress clientAddress = (InetSocketAddress) 
inboundChannel.remoteAddress();
+                        String sourceAddress = 
clientAddress.getAddress().getHostAddress();
+                        int sourcePort = clientAddress.getPort();
+                        if (outboundChannel.localAddress() instanceof 
InetSocketAddress) {
+                            InetSocketAddress proxyAddress = 
(InetSocketAddress) inboundChannel.remoteAddress();
+                            String destinationAddress = 
proxyAddress.getAddress().getHostAddress();
+                            int destinationPort = proxyAddress.getPort();
+                            HAProxyMessage msg = new 
HAProxyMessage(HAProxyProtocolVersion.V1, HAProxyCommand.PROXY,

Review comment:
       Sounds good




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