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From i...@apache.org
Subject [dubbo-samples] branch master updated: integration test for dubbo-samples-chain
Date Mon, 17 Jun 2019 11:46:06 GMT
This is an automated email from the ASF dual-hosted git repository.

iluo pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/dubbo-samples.git


The following commit(s) were added to refs/heads/master by this push:
     new e450800  integration test for dubbo-samples-chain
e450800 is described below

commit e450800d29a1716f98d642b5cfbf761e02ddc822
Author: Ian Luo <ian.luo@gmail.com>
AuthorDate: Mon Jun 17 19:44:40 2019 +0800

    integration test for dubbo-samples-chain
---
 .../dubbo-samples-chain-api/pom.xml                | 308 +----------------
 .../samples/{governance => chain}/ZKTools.java     |   5 +-
 .../{governance => chain}/api/AmericanService.java |   5 +-
 .../{governance => chain}/api/CatService.java      |   5 +-
 .../{governance => chain}/api/ChineseService.java  |   5 +-
 .../{governance => chain}/api/DogService.java      |   5 +-
 .../{governance => chain}/api/LionService.java     |   5 +-
 .../{governance => chain}/api/TigerService.java    |   5 +-
 .../dubbo-samples-chain-backend/pom.xml            | 325 +++---------------
 .../BackendProvider.java}                          |  30 +-
 .../{governance => chain}/impl/CatServiceImpl.java |   7 +-
 .../{governance => chain}/impl/DogServiceImpl.java |   7 +-
 .../impl/LionServiceImpl.java                      |   7 +-
 .../impl/TigerServiceImpl.java                     |   7 +-
 .../dubbo/samples/governance/BackendProvider.java  |  34 --
 .../main/resources/spring/dubbo-demo-provider.xml  |  31 +-
 .../dubbo-samples-chain-front/pom.xml              | 372 ++++++---------------
 .../{governance => chain}/FrontendConsumer.java    |  44 ++-
 .../src/main/resources/docker/docker-compose.yml   |  14 +
 .../main/resources/spring/dubbo-demo-consumer.xml  |  28 +-
 .../dubbo/samples/chain/MIddleServiceIT.java       | 113 +++++++
 .../dubbo-samples-chain-middle/pom.xml             | 327 +++---------------
 .../dubbo/samples/chain/MiddleEndProvider.java}    |  30 +-
 .../impl/AmericanServiceImpl.java                  |  11 +-
 .../impl/ChineseServiceImpl.java                   |  11 +-
 .../samples/governance/MiddleEndProvider.java      |  35 --
 .../main/resources/spring/dubbo-demo-provider.xml  |  30 +-
 dubbo-samples-chain/pom.xml                        |  71 +++-
 28 files changed, 504 insertions(+), 1373 deletions(-)

diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/pom.xml b/dubbo-samples-chain/dubbo-samples-chain-api/pom.xml
index 8337883..d599bab 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/pom.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/pom.xml
@@ -21,312 +21,14 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-   <groupId>org.apache.dubbo</groupId>
-    <version>1.0-SNAPSHOT</version>
+    <parent>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-samples-chain</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
 
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>dubbo-samples-chain-api</artifactId>
 
-    <properties>
-        <source.level>1.8</source.level>
-        <target.level>1.8</target.level>
-        <spring.version>4.3.16.RELEASE</spring.version>
-        <dubbo.version>2.7.0</dubbo.version>
-        <dubbo.rpc.version>2.7.0</dubbo.rpc.version>
-        <zookeeper.version>3.4.13</zookeeper.version>
-        <curator.version>4.0.1</curator.version>
-        <validation-api.version>1.1.0.Final</validation-api.version>
-        <hibernate-validator.version>4.2.0.Final</hibernate-validator.version>
-        <resteasy.version>3.0.19.Final</resteasy.version>
-        <curator-client.version>4.0.1</curator-client.version>
-        <swagger.version>1.5.19</swagger.version>
-        <tomcat.version>7.0.88</tomcat.version>
-        <servlet.version>3.0.1</servlet.version>
-        <maven_checkstyle_version>3.0.0</maven_checkstyle_version>
-        <apache-rat-plugin.version>0.12</apache-rat-plugin.version>
-        <spring-boot.version>1.5.13.RELEASE</spring-boot.version>
-    </properties>
-
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-framework-bom</artifactId>
-                <version>${spring.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <!-- Import dependency management from Spring Boot -->
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>io.netty</groupId>
-                <artifactId>netty-all</artifactId>
-                <version>4.1.16.Final</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-bom</artifactId>
-                <version>${dubbo.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo</artifactId>
-                <version>${dubbo.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.thrift</groupId>
-                        <artifactId>libthrift</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-rpc-rest</artifactId>
-                <version>${dubbo.rpc.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.zookeeper</groupId>
-                <artifactId>zookeeper</artifactId>
-                <version>${zookeeper.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-framework</artifactId>
-                <version>${curator.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.validation</groupId>
-                <artifactId>validation-api</artifactId>
-                <version>${validation-api.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.hibernate</groupId>
-                <artifactId>hibernate-validator</artifactId>
-                <version>${hibernate-validator.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.jboss.resteasy</groupId>
-                <artifactId>resteasy-jackson-provider</artifactId>
-                <version>${resteasy.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-client</artifactId>
-                <version>${curator-client.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.servlet</groupId>
-                <artifactId>javax.servlet-api</artifactId>
-                <version>${servlet.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-core</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-logging-juli</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <!-- swagger -->
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-annotations</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-jaxrs</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.apache.curator</groupId>
-            <artifactId>curator-framework</artifactId>
-            <exclusions>
-                <exclusion>
-                    <groupId>io.netty</groupId>
-                    <artifactId>netty</artifactId>
-                </exclusion>
-                <exclusion>
-                    <groupId>org.apache.zookeeper</groupId>
-                    <artifactId>zookeeper</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.zookeeper</groupId>
-            <artifactId>zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-all</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-metadata-report-api</artifactId>
-        </dependency>
-    </dependencies>
-
-
-
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
-                <configuration>
-                    <source>${source.level}</source>
-                    <target>${target.level}</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.rat</groupId>
-                <artifactId>apache-rat-plugin</artifactId>
-                <version>${apache-rat-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>verify.rat</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                        <configuration>
-                            <excludes>
-                                <exclude>**/*.versionsBackup</exclude>
-                                <exclude>**/.idea/</exclude>
-                                <exclude>**/*.iml</exclude>
-                                <exclude>**/*.txt</exclude>
-                                <exclude>**/*.load</exclude>
-                                <exclude>**/*.flex</exclude>
-                                <exclude>**/*.fc</exclude>
-                                <exclude>**/*.javascript</exclude>
-                                <exclude>**/*.properties</exclude>
-                                <exclude>**/*.thrift</exclude>
-                                <exclude>**/*.sh</exclude>
-                                <exclude>**/*.bat</exclude>
-                                <exclude>**/*.md</exclude>
-                                <exclude>.git/</exclude>
-                                <exclude>.gitignore</exclude>
-                                <!-- ASF jenkins box puts the Maven repo in our root directory. -->
-                                <exclude>.repository/</exclude>
-                                <exclude>**/.settings/*</exclude>
-                                <exclude>**/.classpath</exclude>
-                                <exclude>**/.project</exclude>
-                                <exclude>**/target/**</exclude>
-                                <exclude>**/*.log</exclude>
-                                <exclude>CODE_OF_CONDUCT.md</exclude>
-                                <exclude>.codecov.yml</exclude>
-                                <exclude>.travis.yml</exclude>
-                                <exclude>PULL_REQUEST_TEMPLATE.md</exclude>
-                                <exclude>CONTRIBUTING.md</exclude>
-                                <exclude>README.md</exclude>
-                                <exclude>**/codestyle/*</exclude>
-                                <exclude>**/resources/META-INF/**</exclude>
-                                <exclude>**/webapp/swagger/**</exclude>
-                                <exclude>**/org/apache/dubbo/samples/rpc/nativethrift/api/DemoService.java</exclude>
-                            </excludes>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-    <profiles>
-        <profile>
-            <id>checkstyle</id>
-            <activation>
-                <jdk>[1.8,)</jdk>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-checkstyle-plugin</artifactId>
-                        <version>${maven_checkstyle_version}</version>
-                        <dependencies>
-                            <dependency>
-                                <groupId>com.puppycrawl.tools</groupId>
-                                <artifactId>checkstyle</artifactId>
-                                <version>8.9</version>
-                            </dependency>
-                        </dependencies>
-                        <executions>
-                            <execution>
-                                <id>checkstyle-validation</id>
-                                <phase>validate</phase>
-                                <configuration>
-                                    <configLocation>../../codestyle/checkstyle.xml</configLocation>
-                                    <suppressionsLocation>../../codestyle/checkstyle-suppressions.xml</suppressionsLocation>
-                                    <encoding>UTF-8</encoding>
-                                    <consoleOutput>true</consoleOutput>
-                                    <failOnViolation>true</failOnViolation>
-                                </configuration>
-                                <goals>
-                                    <goal>check</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
-
 </project>
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/ZKTools.java
similarity index 98%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/ZKTools.java
index 5f90138..663facb 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/ZKTools.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance;
+package org.apache.dubbo.samples.chain;
 
 import org.apache.dubbo.common.utils.StringUtils;
 
@@ -22,9 +22,6 @@ import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
 import org.apache.curator.retry.ExponentialBackoffRetry;
 
-/**
- *
- */
 public class ZKTools {
     private static CuratorFramework client;
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/AmericanService.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/AmericanService.java
similarity index 93%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/AmericanService.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/AmericanService.java
index ac60277..810284c 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/AmericanService.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/AmericanService.java
@@ -14,11 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.api;
+package org.apache.dubbo.samples.chain.api;
 
-/**
- *
- */
 public interface AmericanService {
     String eat();
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/CatService.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/CatService.java
similarity index 93%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/CatService.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/CatService.java
index 3ff7174..3f7ef09 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/CatService.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/CatService.java
@@ -14,11 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.api;
+package org.apache.dubbo.samples.chain.api;
 
-/**
- *
- */
 public interface CatService {
     int getId();
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/ChineseService.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/ChineseService.java
similarity index 93%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/ChineseService.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/ChineseService.java
index 829548f..1f9d16b 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/ChineseService.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/ChineseService.java
@@ -14,11 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.api;
+package org.apache.dubbo.samples.chain.api;
 
-/**
- *
- */
 public interface ChineseService {
     String eat();
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/DogService.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/DogService.java
similarity index 93%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/DogService.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/DogService.java
index a2360d6..5a861cd 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/DogService.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/DogService.java
@@ -14,11 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.api;
+package org.apache.dubbo.samples.chain.api;
 
-/**
- *
- */
 public interface DogService {
     int getId();
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/LionService.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/LionService.java
similarity index 93%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/LionService.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/LionService.java
index bb54048..ed3bf0b 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/LionService.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/LionService.java
@@ -14,11 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.api;
+package org.apache.dubbo.samples.chain.api;
 
-/**
- *
- */
 public interface LionService {
     int getId();
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/TigerService.java b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/TigerService.java
similarity index 93%
rename from dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/TigerService.java
rename to dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/TigerService.java
index 98b60a0..f8b74e2 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/governance/api/TigerService.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-api/src/main/java/org/apache/dubbo/samples/chain/api/TigerService.java
@@ -14,11 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.api;
+package org.apache.dubbo.samples.chain.api;
 
-/**
- *
- */
 public interface TigerService {
     int getId();
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/pom.xml b/dubbo-samples-chain/dubbo-samples-chain-backend/pom.xml
index 8c17001..8324fa9 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/pom.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/pom.xml
@@ -21,310 +21,79 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <groupId>org.apache.dubbo</groupId>
-    <version>1.0-SNAPSHOT</version>
+    <parent>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-samples-chain</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
 
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>dubbo-samples-chain-backend</artifactId>
 
     <properties>
-        <source.level>1.8</source.level>
-        <target.level>1.8</target.level>
-        <spring.version>4.3.16.RELEASE</spring.version>
-        <dubbo.version>2.7.0</dubbo.version>
-        <dubbo.rpc.version>2.7.0</dubbo.rpc.version>
-        <zookeeper.version>3.4.13</zookeeper.version>
-        <curator.version>4.0.1</curator.version>
-        <validation-api.version>1.1.0.Final</validation-api.version>
-        <hibernate-validator.version>4.2.0.Final</hibernate-validator.version>
-        <resteasy.version>3.0.19.Final</resteasy.version>
-        <curator-client.version>4.0.1</curator-client.version>
-        <swagger.version>1.5.19</swagger.version>
-        <tomcat.version>7.0.88</tomcat.version>
-        <servlet.version>3.0.1</servlet.version>
-        <maven_checkstyle_version>3.0.0</maven_checkstyle_version>
-        <apache-rat-plugin.version>0.12</apache-rat-plugin.version>
-        <spring-boot.version>1.5.13.RELEASE</spring-boot.version>
+        <main-class>org.apache.dubbo.samples.chain.BackendProvider</main-class>
+        <image.name>${artifactId}:${dubbo.version}</image.name>
+        <dubbo.port>20880</dubbo.port>
     </properties>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-framework-bom</artifactId>
-                <version>${spring.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <!-- Import dependency management from Spring Boot -->
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>io.netty</groupId>
-                <artifactId>netty-all</artifactId>
-                <version>4.1.16.Final</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-bom</artifactId>
-                <version>${dubbo.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo</artifactId>
-                <version>${dubbo.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.thrift</groupId>
-                        <artifactId>libthrift</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-rpc-rest</artifactId>
-                <version>${dubbo.rpc.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.zookeeper</groupId>
-                <artifactId>zookeeper</artifactId>
-                <version>${zookeeper.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-framework</artifactId>
-                <version>${curator.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.validation</groupId>
-                <artifactId>validation-api</artifactId>
-                <version>${validation-api.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.hibernate</groupId>
-                <artifactId>hibernate-validator</artifactId>
-                <version>${hibernate-validator.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.jboss.resteasy</groupId>
-                <artifactId>resteasy-jackson-provider</artifactId>
-                <version>${resteasy.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-client</artifactId>
-                <version>${curator-client.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.servlet</groupId>
-                <artifactId>javax.servlet-api</artifactId>
-                <version>${servlet.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-core</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-logging-juli</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <!-- swagger -->
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-annotations</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-jaxrs</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <dependencies>
         <dependency>
-            <groupId>org.apache.curator</groupId>
-            <artifactId>curator-framework</artifactId>
-            <exclusions>
-                <exclusion>
-                    <groupId>io.netty</groupId>
-                    <artifactId>netty</artifactId>
-                </exclusion>
-                <exclusion>
-                    <groupId>org.apache.zookeeper</groupId>
-                    <artifactId>zookeeper</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.zookeeper</groupId>
-            <artifactId>zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-all</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-metadata-report-api</artifactId>
-        </dependency>
-        <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-samples-chain-api</artifactId>
             <version>${project.version}</version>
         </dependency>
     </dependencies>
 
-
-
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
-                <configuration>
-                    <source>${source.level}</source>
-                    <target>${target.level}</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.rat</groupId>
-                <artifactId>apache-rat-plugin</artifactId>
-                <version>${apache-rat-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>verify.rat</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                        <configuration>
-                            <excludes>
-                                <exclude>**/*.versionsBackup</exclude>
-                                <exclude>**/.idea/</exclude>
-                                <exclude>**/*.iml</exclude>
-                                <exclude>**/*.txt</exclude>
-                                <exclude>**/*.load</exclude>
-                                <exclude>**/*.flex</exclude>
-                                <exclude>**/*.fc</exclude>
-                                <exclude>**/*.javascript</exclude>
-                                <exclude>**/*.properties</exclude>
-                                <exclude>**/*.thrift</exclude>
-                                <exclude>**/*.sh</exclude>
-                                <exclude>**/*.bat</exclude>
-                                <exclude>**/*.md</exclude>
-                                <exclude>.git/</exclude>
-                                <exclude>.gitignore</exclude>
-                                <!-- ASF jenkins box puts the Maven repo in our root directory. -->
-                                <exclude>.repository/</exclude>
-                                <exclude>**/.settings/*</exclude>
-                                <exclude>**/.classpath</exclude>
-                                <exclude>**/.project</exclude>
-                                <exclude>**/target/**</exclude>
-                                <exclude>**/*.log</exclude>
-                                <exclude>CODE_OF_CONDUCT.md</exclude>
-                                <exclude>.codecov.yml</exclude>
-                                <exclude>.travis.yml</exclude>
-                                <exclude>PULL_REQUEST_TEMPLATE.md</exclude>
-                                <exclude>CONTRIBUTING.md</exclude>
-                                <exclude>README.md</exclude>
-                                <exclude>**/codestyle/*</exclude>
-                                <exclude>**/resources/META-INF/**</exclude>
-                                <exclude>**/webapp/swagger/**</exclude>
-                                <exclude>**/org/apache/dubbo/samples/rpc/nativethrift/api/DemoService.java</exclude>
-                            </excludes>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
     <profiles>
         <profile>
-            <id>checkstyle</id>
-            <activation>
-                <jdk>[1.8,)</jdk>
-            </activation>
+            <id>dubbo-integration-test</id>
             <build>
                 <plugins>
                     <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-checkstyle-plugin</artifactId>
-                        <version>${maven_checkstyle_version}</version>
-                        <dependencies>
-                            <dependency>
-                                <groupId>com.puppycrawl.tools</groupId>
-                                <artifactId>checkstyle</artifactId>
-                                <version>8.9</version>
-                            </dependency>
-                        </dependencies>
+                        <groupId>org.apache.dubbo</groupId>
+                        <artifactId>dubbo-maven-address-plugin</artifactId>
+                        <version>1.0-SNAPSHOT</version>
                         <executions>
                             <execution>
-                                <id>checkstyle-validation</id>
-                                <phase>validate</phase>
+                                <goals>
+                                    <goal>local-address</goal>
+                                </goals>
                                 <configuration>
-                                    <configLocation>../../codestyle/checkstyle.xml</configLocation>
-                                    <suppressionsLocation>../../codestyle/checkstyle-suppressions.xml</suppressionsLocation>
-                                    <encoding>UTF-8</encoding>
-                                    <consoleOutput>true</consoleOutput>
-                                    <failOnViolation>true</failOnViolation>
+                                    <localAddress>dubbo-local-address</localAddress>
                                 </configuration>
+                                <phase>initialize</phase>
+                            </execution>
+                        </executions>
+                    </plugin>
+
+                    <plugin>
+                        <groupId>com.google.cloud.tools</groupId>
+                        <artifactId>jib-maven-plugin</artifactId>
+                        <version>${jib-maven-plugin.version}</version>
+                        <configuration>
+                            <from>
+                                <image>openjdk:8</image>
+                            </from>
+                            <to>
+                                <image>${image.name}</image>
+                            </to>
+                            <container>
+                                <mainClass>${main-class}</mainClass>
+                                <ports>
+                                    <port>${dubbo.port}</port>
+                                </ports>
+                                <environment>
+                                    <DUBBO_IP_TO_REGISTRY>${dubbo-local-address}</DUBBO_IP_TO_REGISTRY>
+                                    <zookeeper.address>${dubbo-local-address}</zookeeper.address>
+                                </environment>
+                            </container>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <phase>package</phase>
                                 <goals>
-                                    <goal>check</goal>
+                                    <goal>dockerBuild</goal>
                                 </goals>
                             </execution>
                         </executions>
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/BackendProvider.java
similarity index 62%
copy from dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java
copy to dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/BackendProvider.java
index 561c3ce..a015a23 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/BackendProvider.java
@@ -14,28 +14,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
 
-import org.apache.dubbo.samples.governance.api.CatService;
+package org.apache.dubbo.samples.chain;
 
-/**
- *
- */
-public class CatServiceImpl implements CatService {
-    @Override
-    public int getId() {
-        return 1;
-    }
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-    @Override
-    public String getName() {
-        System.out.println("I am a Cat!");
-        return "I am a Cat!";
-    }
+import java.util.concurrent.CountDownLatch;
+
+public class BackendProvider {
+
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-provider.xml");
+        context.start();
 
-    @Override
-    public String cat() {
-        System.out.println("Meow Meow!");
-        return "Meow Meow!";
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
     }
 }
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/CatServiceImpl.java
similarity index 90%
copy from dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java
copy to dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/CatServiceImpl.java
index 561c3ce..26cbaa0 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/CatServiceImpl.java
@@ -14,13 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
+package org.apache.dubbo.samples.chain.impl;
 
-import org.apache.dubbo.samples.governance.api.CatService;
+import org.apache.dubbo.samples.chain.api.CatService;
 
-/**
- *
- */
 public class CatServiceImpl implements CatService {
     @Override
     public int getId() {
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/DogServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/DogServiceImpl.java
similarity index 92%
rename from dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/DogServiceImpl.java
rename to dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/DogServiceImpl.java
index 0268c9c..9a861e4 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/DogServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/DogServiceImpl.java
@@ -14,13 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
+package org.apache.dubbo.samples.chain.impl;
 
-import org.apache.dubbo.samples.governance.api.DogService;
+import org.apache.dubbo.samples.chain.api.DogService;
 
-/**
- *
- */
 public class DogServiceImpl implements DogService {
     @Override
     public int getId() {
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/LionServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/LionServiceImpl.java
similarity index 90%
rename from dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/LionServiceImpl.java
rename to dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/LionServiceImpl.java
index d1294c1..fe4deae 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/LionServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/LionServiceImpl.java
@@ -14,13 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
+package org.apache.dubbo.samples.chain.impl;
 
-import org.apache.dubbo.samples.governance.api.LionService;
+import org.apache.dubbo.samples.chain.api.LionService;
 
-/**
- *
- */
 public class LionServiceImpl implements LionService {
     @Override
     public int getId() {
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/TigerServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/TigerServiceImpl.java
similarity index 90%
rename from dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/TigerServiceImpl.java
rename to dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/TigerServiceImpl.java
index 828f826..f1078e2 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/TigerServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/chain/impl/TigerServiceImpl.java
@@ -14,13 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
+package org.apache.dubbo.samples.chain.impl;
 
-import org.apache.dubbo.samples.governance.api.TigerService;
+import org.apache.dubbo.samples.chain.api.TigerService;
 
-/**
- *
- */
 public class TigerServiceImpl implements TigerService {
     @Override
     public int getId() {
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/BackendProvider.java b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/BackendProvider.java
deleted file mode 100644
index 6b34e93..0000000
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/BackendProvider.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- *
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements.  See the NOTICE file distributed with
- *   this work for additional information regarding copyright ownership.
- *   The ASF licenses this file to You under the Apache License, Version 2.0
- *   (the "License"); you may not use this file except in compliance with
- *   the License.  You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
- *
- */
-
-package org.apache.dubbo.samples.governance;
-
-import org.springframework.context.support.ClassPathXmlApplicationContext;
-
-public class BackendProvider {
-
-    public static void main(String[] args) throws Exception {
-//        new EmbeddedZooKeeper(2181, false).start();
-        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"spring/dubbo-demo-provider.xml"});
-        context.start();
-
-        System.in.read(); // press any key to exit
-    }
-
-}
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/resources/spring/dubbo-demo-provider.xml
index 5a6c777..4e9ada7 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/resources/spring/dubbo-demo-provider.xml
@@ -20,27 +20,28 @@
 
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
-       xmlns="http://www.springframework.org/schema/beans"
+       xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
+       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+    <context:property-placeholder/>
 
     <!-- optional provider's application name, used for tracing dependency relationship -->
-    <dubbo:application name="concurrency-backend"/>
-    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
-    <dubbo:protocol port="-1"/>
+    <dubbo:application name="chain-backend-app"/>
+    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:protocol port="20880"/>
 
-    <dubbo:config-center address="zookeeper://127.0.0.1:2181"/>
+    <dubbo:config-center address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
-    <bean id="catService" class="org.apache.dubbo.samples.governance.impl.CatServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.CatService" ref="catService"/>
+    <bean id="catService" class="org.apache.dubbo.samples.chain.impl.CatServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.chain.api.CatService" ref="catService"/>
 
-    <bean id="dogService" class="org.apache.dubbo.samples.governance.impl.DogServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DogService" ref="dogService"/>
+    <bean id="dogService" class="org.apache.dubbo.samples.chain.impl.DogServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.chain.api.DogService" ref="dogService"/>
 
-    <bean id="lionService" class="org.apache.dubbo.samples.governance.impl.LionServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.LionService" ref="lionService"/>
+    <bean id="lionService" class="org.apache.dubbo.samples.chain.impl.LionServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.chain.api.LionService" ref="lionService"/>
 
-    <bean id="tigerService" class="org.apache.dubbo.samples.governance.impl.TigerServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.TigerService" ref="tigerService"/>
+    <bean id="tigerService" class="org.apache.dubbo.samples.chain.impl.TigerServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.chain.api.TigerService" ref="tigerService"/>
 
-</beans>
\ No newline at end of file
+</beans>
diff --git a/dubbo-samples-chain/dubbo-samples-chain-front/pom.xml b/dubbo-samples-chain/dubbo-samples-chain-front/pom.xml
index 7efe89c..687e1bf 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-front/pom.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-front/pom.xml
@@ -21,312 +21,138 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-   <groupId>org.apache.dubbo</groupId>
-    <version>1.0-SNAPSHOT</version>
+    <parent>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-samples-chain</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
 
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>dubbo-samples-chain-front</artifactId>
 
-    <properties>
-        <source.level>1.8</source.level>
-        <target.level>1.8</target.level>
-        <spring.version>4.3.16.RELEASE</spring.version>
-        <dubbo.version>2.7.0</dubbo.version>
-        <dubbo.rpc.version>2.7.0</dubbo.rpc.version>
-        <zookeeper.version>3.4.13</zookeeper.version>
-        <curator.version>4.0.1</curator.version>
-        <validation-api.version>1.1.0.Final</validation-api.version>
-        <hibernate-validator.version>4.2.0.Final</hibernate-validator.version>
-        <resteasy.version>3.0.19.Final</resteasy.version>
-        <curator-client.version>4.0.1</curator-client.version>
-        <swagger.version>1.5.19</swagger.version>
-        <tomcat.version>7.0.88</tomcat.version>
-        <servlet.version>3.0.1</servlet.version>
-        <maven_checkstyle_version>3.0.0</maven_checkstyle_version>
-        <apache-rat-plugin.version>0.12</apache-rat-plugin.version>
-        <spring-boot.version>1.5.13.RELEASE</spring-boot.version>
-    </properties>
-
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-framework-bom</artifactId>
-                <version>${spring.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <!-- Import dependency management from Spring Boot -->
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>io.netty</groupId>
-                <artifactId>netty-all</artifactId>
-                <version>4.1.16.Final</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-bom</artifactId>
-                <version>${dubbo.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo</artifactId>
-                <version>${dubbo.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.thrift</groupId>
-                        <artifactId>libthrift</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-rpc-rest</artifactId>
-                <version>${dubbo.rpc.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.zookeeper</groupId>
-                <artifactId>zookeeper</artifactId>
-                <version>${zookeeper.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-framework</artifactId>
-                <version>${curator.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.validation</groupId>
-                <artifactId>validation-api</artifactId>
-                <version>${validation-api.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.hibernate</groupId>
-                <artifactId>hibernate-validator</artifactId>
-                <version>${hibernate-validator.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.jboss.resteasy</groupId>
-                <artifactId>resteasy-jackson-provider</artifactId>
-                <version>${resteasy.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-client</artifactId>
-                <version>${curator-client.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.servlet</groupId>
-                <artifactId>javax.servlet-api</artifactId>
-                <version>${servlet.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-core</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-logging-juli</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <!-- swagger -->
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-annotations</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-jaxrs</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <dependencies>
         <dependency>
-            <groupId>org.apache.curator</groupId>
-            <artifactId>curator-framework</artifactId>
-            <exclusions>
-                <exclusion>
-                    <groupId>io.netty</groupId>
-                    <artifactId>netty</artifactId>
-                </exclusion>
-                <exclusion>
-                    <groupId>org.apache.zookeeper</groupId>
-                    <artifactId>zookeeper</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.zookeeper</groupId>
-            <artifactId>zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-all</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
-        </dependency>
-        <dependency>
             <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
+            <artifactId>dubbo-samples-chain-api</artifactId>
+            <version>${project.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-metadata-report-api</artifactId>
+            <artifactId>dubbo-samples-chain-backend</artifactId>
+            <version>${project.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-samples-chain-api</artifactId>
+            <artifactId>dubbo-samples-chain-middle</artifactId>
             <version>${project.version}</version>
         </dependency>
     </dependencies>
 
-
-
     <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
-                <configuration>
-                    <source>${source.level}</source>
-                    <target>${target.level}</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.rat</groupId>
-                <artifactId>apache-rat-plugin</artifactId>
-                <version>${apache-rat-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>verify.rat</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                        <configuration>
-                            <excludes>
-                                <exclude>**/*.versionsBackup</exclude>
-                                <exclude>**/.idea/</exclude>
-                                <exclude>**/*.iml</exclude>
-                                <exclude>**/*.txt</exclude>
-                                <exclude>**/*.load</exclude>
-                                <exclude>**/*.flex</exclude>
-                                <exclude>**/*.fc</exclude>
-                                <exclude>**/*.javascript</exclude>
-                                <exclude>**/*.properties</exclude>
-                                <exclude>**/*.thrift</exclude>
-                                <exclude>**/*.sh</exclude>
-                                <exclude>**/*.bat</exclude>
-                                <exclude>**/*.md</exclude>
-                                <exclude>.git/</exclude>
-                                <exclude>.gitignore</exclude>
-                                <!-- ASF jenkins box puts the Maven repo in our root directory. -->
-                                <exclude>.repository/</exclude>
-                                <exclude>**/.settings/*</exclude>
-                                <exclude>**/.classpath</exclude>
-                                <exclude>**/.project</exclude>
-                                <exclude>**/target/**</exclude>
-                                <exclude>**/*.log</exclude>
-                                <exclude>CODE_OF_CONDUCT.md</exclude>
-                                <exclude>.codecov.yml</exclude>
-                                <exclude>.travis.yml</exclude>
-                                <exclude>PULL_REQUEST_TEMPLATE.md</exclude>
-                                <exclude>CONTRIBUTING.md</exclude>
-                                <exclude>README.md</exclude>
-                                <exclude>**/codestyle/*</exclude>
-                                <exclude>**/resources/META-INF/**</exclude>
-                                <exclude>**/webapp/swagger/**</exclude>
-                                <exclude>**/org/apache/dubbo/samples/rpc/nativethrift/api/DemoService.java</exclude>
-                            </excludes>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
     </build>
 
     <profiles>
         <profile>
-            <id>checkstyle</id>
-            <activation>
-                <jdk>[1.8,)</jdk>
-            </activation>
+            <id>dubbo-integration-test</id>
             <build>
                 <plugins>
                     <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-checkstyle-plugin</artifactId>
-                        <version>${maven_checkstyle_version}</version>
-                        <dependencies>
-                            <dependency>
-                                <groupId>com.puppycrawl.tools</groupId>
-                                <artifactId>checkstyle</artifactId>
-                                <version>8.9</version>
-                            </dependency>
-                        </dependencies>
+                        <groupId>org.apache.dubbo</groupId>
+                        <artifactId>dubbo-maven-address-plugin</artifactId>
+                        <version>1.0-SNAPSHOT</version>
                         <executions>
                             <execution>
-                                <id>checkstyle-validation</id>
-                                <phase>validate</phase>
+                                <goals>
+                                    <goal>local-address</goal>
+                                </goals>
                                 <configuration>
-                                    <configLocation>../../codestyle/checkstyle.xml</configLocation>
-                                    <suppressionsLocation>../../codestyle/checkstyle-suppressions.xml</suppressionsLocation>
-                                    <encoding>UTF-8</encoding>
-                                    <consoleOutput>true</consoleOutput>
-                                    <failOnViolation>true</failOnViolation>
+                                    <localAddress>dubbo-local-address</localAddress>
                                 </configuration>
+                                <phase>initialize</phase>
+                            </execution>
+                        </executions>
+                    </plugin>
+
+                    <plugin>
+                        <groupId>io.fabric8</groupId>
+                        <artifactId>docker-maven-plugin</artifactId>
+                        <version>${docker-maven-plugin.version}</version>
+                        <configuration>
+                            <images>
+                                <image>
+                                    <external>
+                                        <type>compose</type>
+                                        <basedir>src/main/resources/docker</basedir>
+                                        <composeFile>docker-compose.yml</composeFile>
+                                    </external>
+                                </image>
+                            </images>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>start</id>
+                                <phase>pre-integration-test</phase>
                                 <goals>
-                                    <goal>check</goal>
+                                    <goal>start</goal>
                                 </goals>
                             </execution>
+                            <execution>
+                                <id>stop</id>
+                                <phase>post-integration-test</phase>
+                                <goals>
+                                    <goal>stop</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+
+                    <!-- wait until docker instances fully start up -->
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-antrun-plugin</artifactId>
+                        <configuration>
+                            <tasks>
+                                <sleep seconds="5" />
+                            </tasks>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>sleep-for-a-while</id>
+                                <phase>pre-integration-test</phase>
+                                <goals>
+                                    <goal>run</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+
+
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-failsafe-plugin</artifactId>
+                        <version>${maven-failsafe-plugin.version}</version>
+                        <executions>
+                            <execution>
+                                <goals>
+                                    <goal>integration-test</goal>
+                                    <goal>verify</goal>
+                                </goals>
+                                <configuration>
+                                    <systemPropertyVariables>
+                                        <zookeeper.address>${dubbo-local-address}</zookeeper.address>
+                                    </systemPropertyVariables>
+                                    <includes>
+                                        <include>**/*IT.java</include>
+                                    </includes>
+                                </configuration>
+                            </execution>
                         </executions>
                     </plugin>
                 </plugins>
diff --git a/dubbo-samples-chain/dubbo-samples-chain-front/src/main/java/org/apache/dubbo/samples/governance/FrontendConsumer.java b/dubbo-samples-chain/dubbo-samples-chain-front/src/main/java/org/apache/dubbo/samples/chain/FrontendConsumer.java
similarity index 72%
rename from dubbo-samples-chain/dubbo-samples-chain-front/src/main/java/org/apache/dubbo/samples/governance/FrontendConsumer.java
rename to dubbo-samples-chain/dubbo-samples-chain-front/src/main/java/org/apache/dubbo/samples/chain/FrontendConsumer.java
index 4cf6067..b1d55f7 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-front/src/main/java/org/apache/dubbo/samples/governance/FrontendConsumer.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-front/src/main/java/org/apache/dubbo/samples/chain/FrontendConsumer.java
@@ -1,32 +1,30 @@
 /*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
  *
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements.  See the NOTICE file distributed with
- *   this work for additional information regarding copyright ownership.
- *   The ASF licenses this file to You under the Apache License, Version 2.0
- *   (the "License"); you may not use this file except in compliance with
- *   the License.  You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
-package org.apache.dubbo.samples.governance;
+package org.apache.dubbo.samples.chain;
 
-import org.apache.dubbo.common.Constants;
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.governance.api.AmericanService;
-import org.apache.dubbo.samples.governance.api.CatService;
-import org.apache.dubbo.samples.governance.api.ChineseService;
-import org.apache.dubbo.samples.governance.api.DogService;
-import org.apache.dubbo.samples.governance.api.LionService;
-import org.apache.dubbo.samples.governance.api.TigerService;
+import org.apache.dubbo.rpc.cluster.Constants;
+import org.apache.dubbo.samples.chain.api.AmericanService;
+import org.apache.dubbo.samples.chain.api.CatService;
+import org.apache.dubbo.samples.chain.api.ChineseService;
+import org.apache.dubbo.samples.chain.api.DogService;
+import org.apache.dubbo.samples.chain.api.LionService;
+import org.apache.dubbo.samples.chain.api.TigerService;
 
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
@@ -40,7 +38,7 @@ public class FrontendConsumer {
     private static long interval = 200;
 
     public static void main(String[] args) {
-        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"spring/dubbo-demo-consumer.xml"});
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-consumer.xml");
         context.start();
 
 
diff --git a/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/docker/docker-compose.yml b/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/docker/docker-compose.yml
new file mode 100644
index 0000000..0597b32
--- /dev/null
+++ b/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/docker/docker-compose.yml
@@ -0,0 +1,14 @@
+version: "2"
+services:
+  zookeeper:
+    image: "zookeeper:latest"
+    ports:
+      - "2181:2181"
+  backend:
+    image: "dubbo-samples-chain-backend:${dubbo.version}"
+    ports:
+      - "20880:20880"
+  middle:
+    image: "dubbo-samples-chain-middle:${dubbo.version}"
+    ports:
+      - "20881:20881"
diff --git a/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/spring/dubbo-demo-consumer.xml b/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/spring/dubbo-demo-consumer.xml
index 333c3e3..7fdb67e 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/spring/dubbo-demo-consumer.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-front/src/main/resources/spring/dubbo-demo-consumer.xml
@@ -20,26 +20,24 @@
 
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
-       xmlns="http://www.springframework.org/schema/beans"
+       xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
+       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+    <context:property-placeholder/>
 
     <!-- optional, consumer's application name, used for tracing dependency relationship (not a matching criterion),
     don't set it same as provider -->
-    <dubbo:application name="concurrency-front"/>
-    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
+    <dubbo:application name="chain-frontend-app"/>
 
-    <dubbo:config-center address="zookeeper://127.0.0.1:2181"/>
+    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:config-center address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
     <!-- generate proxy for the remote service, then demoService can be used in the same way as the
     local regular interface -->
-    <dubbo:reference id="catService" check="false" interface="org.apache.dubbo.samples.governance.api.CatService"/>
-    <dubbo:reference id="dogService" check="false" interface="org.apache.dubbo.samples.governance.api.DogService"/>
-    <dubbo:reference id="lionService" check="false" interface="org.apache.dubbo.samples.governance.api.LionService"/>
-    <dubbo:reference id="tigerService" check="false" interface="org.apache.dubbo.samples.governance.api.TigerService"/>
-    <dubbo:reference id="chineseService" check="false"
-                     interface="org.apache.dubbo.samples.governance.api.ChineseService"/>
-    <dubbo:reference id="americanService" check="false"
-                     interface="org.apache.dubbo.samples.governance.api.AmericanService"/>
-
-</beans>
\ No newline at end of file
+    <dubbo:reference id="catService" check="false" interface="org.apache.dubbo.samples.chain.api.CatService"/>
+    <dubbo:reference id="dogService" check="false" interface="org.apache.dubbo.samples.chain.api.DogService"/>
+    <dubbo:reference id="lionService" check="false" interface="org.apache.dubbo.samples.chain.api.LionService"/>
+    <dubbo:reference id="tigerService" check="false" interface="org.apache.dubbo.samples.chain.api.TigerService"/>
+    <dubbo:reference id="chineseService" check="false" interface="org.apache.dubbo.samples.chain.api.ChineseService"/>
+    <dubbo:reference id="americanService" check="false" interface="org.apache.dubbo.samples.chain.api.AmericanService"/>
+</beans>
diff --git a/dubbo-samples-chain/dubbo-samples-chain-front/src/test/java/org/apache/dubbo/samples/chain/MIddleServiceIT.java b/dubbo-samples-chain/dubbo-samples-chain-front/src/test/java/org/apache/dubbo/samples/chain/MIddleServiceIT.java
new file mode 100644
index 0000000..4c7767f
--- /dev/null
+++ b/dubbo-samples-chain/dubbo-samples-chain-front/src/test/java/org/apache/dubbo/samples/chain/MIddleServiceIT.java
@@ -0,0 +1,113 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.samples.chain;
+
+import org.apache.dubbo.rpc.RpcException;
+import org.apache.dubbo.samples.chain.api.AmericanService;
+import org.apache.dubbo.samples.chain.api.CatService;
+import org.apache.dubbo.samples.chain.api.ChineseService;
+import org.apache.dubbo.samples.chain.api.DogService;
+import org.apache.dubbo.samples.chain.api.LionService;
+import org.apache.dubbo.samples.chain.api.TigerService;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import static org.junit.Assert.fail;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = "classpath*:spring/dubbo-demo-consumer.xml")
+public class MIddleServiceIT {
+    @Autowired
+    @Qualifier("americanService")
+    private AmericanService americanService;
+
+    @Autowired
+    @Qualifier("chineseService")
+    private ChineseService chineseService;
+
+    @Autowired
+    private CatService catService;
+
+    @Autowired
+    private DogService dogService;
+
+    @Autowired
+    private LionService lionService;
+
+    @Autowired
+    private TigerService tigerService;
+
+    @Test
+    public void americanWatch() throws Exception {
+        Assert.assertEquals(americanService.watch(), "I want to see Lion!");
+    }
+
+    @Test(expected = RpcException.class)
+    public void americanEat() throws Exception {
+        americanService.eat();
+    }
+
+    @Test
+    public void chineseWatch() throws Exception {
+        Assert.assertEquals(chineseService.watch(), "I want to see Tiger!");
+    }
+
+    @Test(expected = RpcException.class)
+    public void chineseEat() throws Exception {
+        chineseService.eat();
+    }
+
+    @Test
+    public void cat() throws Exception {
+        Assert.assertEquals(1, catService.getId());
+        Assert.assertEquals("I am a Cat!", catService.getName());
+        Assert.assertEquals("Meow Meow!", catService.cat());
+    }
+
+    @Test
+    public void dog() throws Exception {
+        Assert.assertEquals(0, dogService.getId());
+        try {
+            dogService.getName();
+            fail("timeout should happen");
+        } catch (Throwable t) {
+
+        }
+        Assert.assertEquals("Woof Woof!", dogService.dog());
+    }
+
+    @Test
+    public void lion() throws Exception {
+        Assert.assertEquals(2, lionService.getId());
+        Assert.assertEquals("I am a Lion!", lionService.getName());
+        Assert.assertEquals("Lion Lion!", lionService.lion());
+    }
+
+    @Test
+    public void tiger() throws Exception {
+        Assert.assertEquals(3, tigerService.getId());
+        Assert.assertEquals("I am a Tiger!", tigerService.getName());
+        Assert.assertEquals("Tiger Tiger!", tigerService.tiger());
+    }
+}
diff --git a/dubbo-samples-chain/dubbo-samples-chain-middle/pom.xml b/dubbo-samples-chain/dubbo-samples-chain-middle/pom.xml
index 5e70b02..b98e904 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-middle/pom.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-middle/pom.xml
@@ -21,310 +21,78 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-   <groupId>org.apache.dubbo</groupId>
-    <version>1.0-SNAPSHOT</version>
+    <parent>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-samples-chain</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
 
     <modelVersion>4.0.0</modelVersion>
-
     <artifactId>dubbo-samples-chain-middle</artifactId>
 
     <properties>
-        <source.level>1.8</source.level>
-        <target.level>1.8</target.level>
-        <spring.version>4.3.16.RELEASE</spring.version>
-        <dubbo.version>2.7.0</dubbo.version>
-        <dubbo.rpc.version>2.7.0</dubbo.rpc.version>
-        <zookeeper.version>3.4.13</zookeeper.version>
-        <curator.version>4.0.1</curator.version>
-        <validation-api.version>1.1.0.Final</validation-api.version>
-        <hibernate-validator.version>4.2.0.Final</hibernate-validator.version>
-        <resteasy.version>3.0.19.Final</resteasy.version>
-        <curator-client.version>4.0.1</curator-client.version>
-        <swagger.version>1.5.19</swagger.version>
-        <tomcat.version>7.0.88</tomcat.version>
-        <servlet.version>3.0.1</servlet.version>
-        <maven_checkstyle_version>3.0.0</maven_checkstyle_version>
-        <apache-rat-plugin.version>0.12</apache-rat-plugin.version>
-        <spring-boot.version>1.5.13.RELEASE</spring-boot.version>
+        <main-class>org.apache.dubbo.samples.chain.MiddleEndProvider</main-class>
+        <image.name>${artifactId}:${dubbo.version}</image.name>
+        <dubbo.port>20881</dubbo.port>
     </properties>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-framework-bom</artifactId>
-                <version>${spring.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <!-- Import dependency management from Spring Boot -->
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>io.netty</groupId>
-                <artifactId>netty-all</artifactId>
-                <version>4.1.16.Final</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-bom</artifactId>
-                <version>${dubbo.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo</artifactId>
-                <version>${dubbo.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.thrift</groupId>
-                        <artifactId>libthrift</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-rpc-rest</artifactId>
-                <version>${dubbo.rpc.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.zookeeper</groupId>
-                <artifactId>zookeeper</artifactId>
-                <version>${zookeeper.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-framework</artifactId>
-                <version>${curator.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.validation</groupId>
-                <artifactId>validation-api</artifactId>
-                <version>${validation-api.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.hibernate</groupId>
-                <artifactId>hibernate-validator</artifactId>
-                <version>${hibernate-validator.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.jboss.resteasy</groupId>
-                <artifactId>resteasy-jackson-provider</artifactId>
-                <version>${resteasy.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.curator</groupId>
-                <artifactId>curator-client</artifactId>
-                <version>${curator-client.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>org.apache.zookeeper</groupId>
-                        <artifactId>zookeeper</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-            <dependency>
-                <groupId>javax.servlet</groupId>
-                <artifactId>javax.servlet-api</artifactId>
-                <version>${servlet.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-core</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.tomcat.embed</groupId>
-                <artifactId>tomcat-embed-logging-juli</artifactId>
-                <version>${tomcat.version}</version>
-            </dependency>
-            <!-- swagger -->
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-annotations</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>io.swagger</groupId>
-                <artifactId>swagger-jaxrs</artifactId>
-                <version>${swagger.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <dependencies>
         <dependency>
-            <groupId>org.apache.curator</groupId>
-            <artifactId>curator-framework</artifactId>
-            <exclusions>
-                <exclusion>
-                    <groupId>io.netty</groupId>
-                    <artifactId>netty</artifactId>
-                </exclusion>
-                <exclusion>
-                    <groupId>org.apache.zookeeper</groupId>
-                    <artifactId>zookeeper</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.zookeeper</groupId>
-            <artifactId>zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-all</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-configcenter-zookeeper</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-metadata-report-api</artifactId>
-        </dependency>
-        <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-samples-chain-api</artifactId>
             <version>${project.version}</version>
         </dependency>
     </dependencies>
 
-
-
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
-                <configuration>
-                    <source>${source.level}</source>
-                    <target>${target.level}</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.rat</groupId>
-                <artifactId>apache-rat-plugin</artifactId>
-                <version>${apache-rat-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>verify.rat</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                        <configuration>
-                            <excludes>
-                                <exclude>**/*.versionsBackup</exclude>
-                                <exclude>**/.idea/</exclude>
-                                <exclude>**/*.iml</exclude>
-                                <exclude>**/*.txt</exclude>
-                                <exclude>**/*.load</exclude>
-                                <exclude>**/*.flex</exclude>
-                                <exclude>**/*.fc</exclude>
-                                <exclude>**/*.javascript</exclude>
-                                <exclude>**/*.properties</exclude>
-                                <exclude>**/*.thrift</exclude>
-                                <exclude>**/*.sh</exclude>
-                                <exclude>**/*.bat</exclude>
-                                <exclude>**/*.md</exclude>
-                                <exclude>.git/</exclude>
-                                <exclude>.gitignore</exclude>
-                                <!-- ASF jenkins box puts the Maven repo in our root directory. -->
-                                <exclude>.repository/</exclude>
-                                <exclude>**/.settings/*</exclude>
-                                <exclude>**/.classpath</exclude>
-                                <exclude>**/.project</exclude>
-                                <exclude>**/target/**</exclude>
-                                <exclude>**/*.log</exclude>
-                                <exclude>CODE_OF_CONDUCT.md</exclude>
-                                <exclude>.codecov.yml</exclude>
-                                <exclude>.travis.yml</exclude>
-                                <exclude>PULL_REQUEST_TEMPLATE.md</exclude>
-                                <exclude>CONTRIBUTING.md</exclude>
-                                <exclude>README.md</exclude>
-                                <exclude>**/codestyle/*</exclude>
-                                <exclude>**/resources/META-INF/**</exclude>
-                                <exclude>**/webapp/swagger/**</exclude>
-                                <exclude>**/org/apache/dubbo/samples/rpc/nativethrift/api/DemoService.java</exclude>
-                            </excludes>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
     <profiles>
         <profile>
-            <id>checkstyle</id>
-            <activation>
-                <jdk>[1.8,)</jdk>
-            </activation>
+            <id>dubbo-integration-test</id>
             <build>
                 <plugins>
                     <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-checkstyle-plugin</artifactId>
-                        <version>${maven_checkstyle_version}</version>
-                        <dependencies>
-                            <dependency>
-                                <groupId>com.puppycrawl.tools</groupId>
-                                <artifactId>checkstyle</artifactId>
-                                <version>8.9</version>
-                            </dependency>
-                        </dependencies>
+                        <groupId>org.apache.dubbo</groupId>
+                        <artifactId>dubbo-maven-address-plugin</artifactId>
+                        <version>1.0-SNAPSHOT</version>
                         <executions>
                             <execution>
-                                <id>checkstyle-validation</id>
-                                <phase>validate</phase>
+                                <goals>
+                                    <goal>local-address</goal>
+                                </goals>
                                 <configuration>
-                                    <configLocation>../../codestyle/checkstyle.xml</configLocation>
-                                    <suppressionsLocation>../../codestyle/checkstyle-suppressions.xml</suppressionsLocation>
-                                    <encoding>UTF-8</encoding>
-                                    <consoleOutput>true</consoleOutput>
-                                    <failOnViolation>true</failOnViolation>
+                                    <localAddress>dubbo-local-address</localAddress>
                                 </configuration>
+                                <phase>initialize</phase>
+                            </execution>
+                        </executions>
+                    </plugin>
+
+                    <plugin>
+                        <groupId>com.google.cloud.tools</groupId>
+                        <artifactId>jib-maven-plugin</artifactId>
+                        <version>${jib-maven-plugin.version}</version>
+                        <configuration>
+                            <from>
+                                <image>openjdk:8</image>
+                            </from>
+                            <to>
+                                <image>${image.name}</image>
+                            </to>
+                            <container>
+                                <mainClass>${main-class}</mainClass>
+                                <ports>
+                                    <port>${dubbo.port}</port>
+                                </ports>
+                                <environment>
+                                    <DUBBO_IP_TO_REGISTRY>${dubbo-local-address}</DUBBO_IP_TO_REGISTRY>
+                                    <zookeeper.address>${dubbo-local-address}</zookeeper.address>
+                                </environment>
+                            </container>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <phase>package</phase>
                                 <goals>
-                                    <goal>check</goal>
+                                    <goal>dockerBuild</goal>
                                 </goals>
                             </execution>
                         </executions>
@@ -333,5 +101,4 @@
             </build>
         </profile>
     </profiles>
-
 </project>
diff --git a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/MiddleEndProvider.java
similarity index 62%
rename from dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java
rename to dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/MiddleEndProvider.java
index 561c3ce..69a7a43 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-backend/src/main/java/org/apache/dubbo/samples/governance/impl/CatServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/MiddleEndProvider.java
@@ -14,28 +14,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
 
-import org.apache.dubbo.samples.governance.api.CatService;
+package org.apache.dubbo.samples.chain;
 
-/**
- *
- */
-public class CatServiceImpl implements CatService {
-    @Override
-    public int getId() {
-        return 1;
-    }
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-    @Override
-    public String getName() {
-        System.out.println("I am a Cat!");
-        return "I am a Cat!";
-    }
+import java.util.concurrent.CountDownLatch;
+
+public class MiddleEndProvider {
+
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-provider.xml");
+        context.start();
 
-    @Override
-    public String cat() {
-        System.out.println("Meow Meow!");
-        return "Meow Meow!";
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
     }
 }
diff --git a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/impl/AmericanServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/impl/AmericanServiceImpl.java
similarity index 88%
rename from dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/impl/AmericanServiceImpl.java
rename to dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/impl/AmericanServiceImpl.java
index ac220d7..9249988 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/impl/AmericanServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/impl/AmericanServiceImpl.java
@@ -14,17 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
+package org.apache.dubbo.samples.chain.impl;
 
-import org.apache.dubbo.samples.governance.api.AmericanService;
-import org.apache.dubbo.samples.governance.api.CatService;
-import org.apache.dubbo.samples.governance.api.LionService;
+import org.apache.dubbo.samples.chain.api.AmericanService;
+import org.apache.dubbo.samples.chain.api.CatService;
+import org.apache.dubbo.samples.chain.api.LionService;
 
 import org.springframework.beans.factory.annotation.Autowired;
 
-/**
- *
- */
 public class AmericanServiceImpl implements AmericanService {
 
     @Autowired
diff --git a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/impl/ChineseServiceImpl.java b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/impl/ChineseServiceImpl.java
similarity index 87%
rename from dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/impl/ChineseServiceImpl.java
rename to dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/impl/ChineseServiceImpl.java
index f6c6897..2c01ae1 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/impl/ChineseServiceImpl.java
+++ b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/chain/impl/ChineseServiceImpl.java
@@ -14,17 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.samples.governance.impl;
+package org.apache.dubbo.samples.chain.impl;
 
-import org.apache.dubbo.samples.governance.api.ChineseService;
-import org.apache.dubbo.samples.governance.api.DogService;
-import org.apache.dubbo.samples.governance.api.TigerService;
+import org.apache.dubbo.samples.chain.api.ChineseService;
+import org.apache.dubbo.samples.chain.api.DogService;
+import org.apache.dubbo.samples.chain.api.TigerService;
 
 import org.springframework.beans.factory.annotation.Autowired;
 
-/**
- *
- */
 public class ChineseServiceImpl implements ChineseService {
 
     @Autowired
diff --git a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/MiddleEndProvider.java b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/MiddleEndProvider.java
deleted file mode 100644
index b45c895..0000000
--- a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/java/org/apache/dubbo/samples/governance/MiddleEndProvider.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- *
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements.  See the NOTICE file distributed with
- *   this work for additional information regarding copyright ownership.
- *   The ASF licenses this file to You under the Apache License, Version 2.0
- *   (the "License"); you may not use this file except in compliance with
- *   the License.  You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
- *
- */
-
-package org.apache.dubbo.samples.governance;
-
-import org.springframework.context.support.ClassPathXmlApplicationContext;
-
-public class MiddleEndProvider {
-
-    public static void main(String[] args) throws Exception {
-//        new EmbeddedZooKeeper(2181, false).start();
-        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"spring/dubbo-demo-provider.xml"});
-        context.start();
-
-        System.in.read(); // press any key to exit
-    }
-
-
-}
diff --git a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/resources/spring/dubbo-demo-provider.xml
index b760308..7563e55 100644
--- a/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-chain/dubbo-samples-chain-middle/src/main/resources/spring/dubbo-demo-provider.xml
@@ -23,27 +23,27 @@
        xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
-
-    <context:component-scan base-package="org.apache.dubbo.samples.governance.impl"/>
+    <context:property-placeholder/>
+    <context:component-scan base-package="org.apache.dubbo.samples.chain.impl"/>
 
     <!-- optional provider's application name, used for tracing dependency relationship -->
-    <dubbo:application name="concurrency-middle"/>
-    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
-    <dubbo:protocol port="-1"/>
+    <dubbo:application name="chain-middle-app"/>
+    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:protocol port="20881"/>
 
-    <dubbo:config-center address="zookeeper://127.0.0.1:2181"/>
+    <dubbo:config-center address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
     <!-- generate proxy for the remote service, then demoService can be used in the same way as the
     local regular interface -->
-    <dubbo:reference id="catService" check="false" interface="org.apache.dubbo.samples.governance.api.CatService"/>
-    <dubbo:reference id="dogService" check="false" interface="org.apache.dubbo.samples.governance.api.DogService"/>
-    <dubbo:reference id="lionService" check="false" interface="org.apache.dubbo.samples.governance.api.LionService"/>
-    <dubbo:reference id="tigerService" check="false" interface="org.apache.dubbo.samples.governance.api.TigerService"/>
+    <dubbo:reference id="catService" check="false" interface="org.apache.dubbo.samples.chain.api.CatService"/>
+    <dubbo:reference id="dogService" check="false" interface="org.apache.dubbo.samples.chain.api.DogService"/>
+    <dubbo:reference id="lionService" check="false" interface="org.apache.dubbo.samples.chain.api.LionService"/>
+    <dubbo:reference id="tigerService" check="false" interface="org.apache.dubbo.samples.chain.api.TigerService"/>
 
-    <bean id="chineseService" class="org.apache.dubbo.samples.governance.impl.ChineseServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.ChineseService" ref="chineseService"/>
+    <bean id="chineseService" class="org.apache.dubbo.samples.chain.impl.ChineseServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.chain.api.ChineseService" ref="chineseService"/>
 
-    <bean id="americanService" class="org.apache.dubbo.samples.governance.impl.AmericanServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.AmericanService" ref="americanService"/>
+    <bean id="americanService" class="org.apache.dubbo.samples.chain.impl.AmericanServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.chain.api.AmericanService" ref="americanService"/>
 
-</beans>
\ No newline at end of file
+</beans>
diff --git a/dubbo-samples-chain/pom.xml b/dubbo-samples-chain/pom.xml
index 2998eb6..c7077fc 100644
--- a/dubbo-samples-chain/pom.xml
+++ b/dubbo-samples-chain/pom.xml
@@ -28,11 +28,78 @@
     <packaging>pom</packaging>
     <artifactId>dubbo-samples-chain</artifactId>
 
+    <properties>
+        <source.level>1.8</source.level>
+        <target.level>1.8</target.level>
+        <dubbo.version>2.7.2</dubbo.version>
+        <spring.version>4.3.16.RELEASE</spring.version>
+        <junit.version>4.12</junit.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+        <jib-maven-plugin.version>1.2.0</jib-maven-plugin.version>
+        <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
+        <maven-failsafe-plugin.version>3.0.0-M3</maven-failsafe-plugin.version>
+    </properties>
+
     <modules>
         <module>dubbo-samples-chain-api</module>
-        <module>dubbo-samples-chain-front</module>
-        <module>dubbo-samples-chain-middle</module>
         <module>dubbo-samples-chain-backend</module>
+        <module>dubbo-samples-chain-middle</module>
+        <module>dubbo-samples-chain-front</module>
     </modules>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-dependencies-zookeeper</artifactId>
+            <version>${dubbo.version}</version>
+            <type>pom</type>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-dependencies-zookeeper</artifactId>
+            <version>${dubbo.version}</version>
+            <type>pom</type>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+            <version>${spring.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${source.level}</source>
+                    <target>${target.level}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>


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