step-11/docker

Use docker to simulate different machines

README.md

@@ -98,9 +98,11 @@ To see the changes between any two lessons use the git diff command.
 - Run `mvn clean package` to rebuild the application
 - Run `mvn exec:exec` to execute the application. In case you're running a clustered step, run this from
   multiple terminals, where each instance will represent a node
+- Run `mvn clean package docker:build` to build docker image, and then run `docker run infinispan-embedded-tutorial/infinispan-embedded-tutorial` in 2 different terminals to simulate multiple nodes of distributed cache
 
 ## Application Directory Layout
 
+    docker/             -->
     src/                -->
       main/             -->
         java/           -->

docker/Dockerfile

@@ -0,0 +1,14 @@
+FROM jboss/base-jdk:8
+
+USER root
+RUN yum install -y iproute
+ADD launch.sh /usr/bin/launch.sh
+RUN chmod +x /usr/bin/launch.sh
+RUN mkdir -p /opt/infinispan-embedded-tutorial/
+RUN chown jboss:jboss /opt/infinispan-embedded-tutorial/
+
+USER jboss
+ADD infinispan-embedded-tutorial-1.0.0-SNAPSHOT-jar-with-dependencies.jar /opt/infinispan-embedded-tutorial/infinispan-embedded-tutorial.jar
+
+ENTRYPOINT /usr/bin/launch.sh
+

docker/launch.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+IPADDR=$(ip a s | sed -ne '/127.0.0.1/!{s/^[ \t]*inet[ \t]*\([0-9.]\+\)\/.*$/\1/p}')
+echo $IPADDR
+
+/usr/bin/java -Djava.net.preferIPv4Stack=true -Djgroups.bind_addr=$IPADDR -jar /opt/infinispan-embedded-tutorial/infinispan-embedded-tutorial.jar
+

pom.xml

@@ -51,6 +51,28 @@
               <target>1.8</target>
             </configuration>
         </plugin>
+        <plugin>
+         <groupId>org.apache.maven.plugins</groupId>
+         <artifactId>maven-assembly-plugin</artifactId>
+         <executions>
+           <execution>
+             <phase>package</phase>
+             <goals>
+               <goal>single</goal>
+             </goals>
+           </execution>
+         </executions>
+         <configuration>
+           <descriptorRefs>
+             <descriptorRef>jar-with-dependencies</descriptorRef>
+           </descriptorRefs>
+           <archive>
+             <manifest>
+               <mainClass>org.infinispan.tutorial.embedded.WeatherApp</mainClass>
+             </manifest>
+           </archive>
+         </configuration>
+        </plugin>
         <plugin>
             <groupId>org.codehaus.mojo</groupId>
             <artifactId>exec-maven-plugin</artifactId>
@@ -72,8 +94,28 @@
                    <argument>org.infinispan.tutorial.embedded.WeatherApp</argument>
                </arguments>
             </configuration>
-         </plugin>
-      </plugins>
+        </plugin>
+        <plugin>
+            <groupId>com.spotify</groupId>
+            <artifactId>docker-maven-plugin</artifactId>
+            <version>1.2.0</version>
+            <configuration>
+                <skipDockerBuild>false</skipDockerBuild>
+                <imageName>infinispan-embedded-tutorial/${project.artifactId}</imageName>
+                <imageTags>
+                  <imageTag>${project.version}</imageTag>
+                </imageTags>
+                <dockerDirectory>${project.basedir}/docker</dockerDirectory>
+                <resources>
+                  <resource>
+                    <targetPath>/</targetPath>
+                    <directory>${project.build.directory}</directory>
+                    <include>${project.build.finalName}-jar-with-dependencies.jar</include>
+                  </resource>
+                </resources>
+            </configuration>
+        </plugin>
+     </plugins>
    </build>
 </project>