diff --git a/src/main/java/com/loafle/overflow/container/Container.java b/src/main/java/com/loafle/overflow/container/Container.java
index f68afa6..ba6c3a6 100644
--- a/src/main/java/com/loafle/overflow/container/Container.java
+++ b/src/main/java/com/loafle/overflow/container/Container.java
@@ -5,6 +5,7 @@ package com.loafle.overflow.container;
  */
 public class Container {
   public static final String PORT_NUMBER = "CONTAINER_PORT_NUMBER";
+  public static final String CHANNEL_HANDLERS = "CONTAINER_CHANNEL_HANDLERS";
   public static final String CRAWLERS = "CONTAINER_CRAWLERS";
   public static final String SERVICES = "CONTAINER_SERVICES";
   public static final String RPC_CLIENT_CODEC = "CONTAINER_RPC_CLIENT_CODEC";
diff --git a/src/main/java/com/loafle/overflow/container/configuration/ContainerConfiguration.java b/src/main/java/com/loafle/overflow/container/configuration/ContainerConfiguration.java
index 9355475..738756a 100644
--- a/src/main/java/com/loafle/overflow/container/configuration/ContainerConfiguration.java
+++ b/src/main/java/com/loafle/overflow/container/configuration/ContainerConfiguration.java
@@ -2,6 +2,8 @@ package com.loafle.overflow.container.configuration;
 
 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.Arrays;
 import java.util.List;
 
@@ -11,11 +13,13 @@ import com.loafle.commons.rpc.protocol.RPCClientCodec;
 import com.loafle.commons.rpc.protocol.json.JSONRPCClientCodec;
 import com.loafle.commons.rpc.registry.RPCRegistry;
 import com.loafle.commons.server.websocket.client.Client;
+import com.loafle.overflow.config.container.ContainerProtocol;
 import com.loafle.overflow.container.Container;
 import com.loafle.overflow.container.client.handler.RPCClientHandler;
 
 import org.codehaus.jackson.map.ObjectMapper;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
@@ -38,6 +42,10 @@ public class ContainerConfiguration {
   @Autowired()
   private ObjectMapper objectMapper;
 
+  @Autowired(required=false)
+  @Qualifier(Container.CHANNEL_HANDLERS)
+  private List<ChannelHandler> extraChannelHandlers;
+
   @Bean(Client.CHANNEL_CLASS)
   public Class<? extends Channel> channelClass() {
     return NioSocketChannel.class;
@@ -45,7 +53,17 @@ public class ContainerConfiguration {
 
   @Bean(Client.CHANNEL_HANDLERS)
   public List<ChannelHandler> channelHandlers() {
-    return Arrays.asList(new RPCClientHandler());
+    List<ChannelHandler> chs = Arrays.asList(new RPCClientHandler());
+    if (null != this.extraChannelHandlers) {
+      chs.addAll(this.extraChannelHandlers);
+    }
+
+    return chs;
+  }
+
+  @Bean(Client.SERVER_URI)
+  public URI probeURI() throws URISyntaxException {
+    return new URI(String.format("ws://127.0.0.1:%d%s", portNumber, ContainerProtocol.HTTPEntry_Container));
   }
 
   @Bean(Container.RPC_CLIENT_CODEC)
@@ -58,8 +76,4 @@ public class ContainerConfiguration {
     return new RPCRegistry();
   }
 
-  @Bean(Client.SOCKET_ADDRESS)
-  public SocketAddress address() {
-    return new InetSocketAddress("127.0.0.1", portNumber);
-  }
 }
\ No newline at end of file