fix(bug): Extension should not bind to its hostname (opensearch-project#830)

Signed-off-by: Tarun Samanta <[email protected]>

Author: SamantaTarun

src/main/java/org/opensearch/sdk/ExtensionsRunner.java

@@ -159,7 +159,8 @@ protected ExtensionsRunner(Extension extension) throws IOException {
         ExtensionSettings extensionSettings = extension.getExtensionSettings();
         Settings.Builder settingsBuilder = Settings.builder()
             .put(NODE_NAME_SETTING, extensionSettings.getExtensionName())
-            .put(TransportSettings.BIND_HOST.getKey(), extensionSettings.getHostAddress())
+            .put(TransportSettings.PUBLISH_HOST.getKey(), extensionSettings.getHostAddress())
+            .putList(TransportSettings.BIND_HOST.getKey(), Collections.emptyList())
             .put(TransportSettings.PORT.getKey(), extensionSettings.getHostPort());
         boolean sslEnabled = extensionSettings.getSecuritySettings().containsKey(SSL_TRANSPORT_ENABLED)
             && "true".equals(extensionSettings.getSecuritySettings().get(SSL_TRANSPORT_ENABLED));