WIP:feat(ch9s6): add initial code for GE

The "mvn fabric8:deploy" command still does not work, mostly because
it seems that the deployed "service" contains selectors for labels
that are not present on the associated Pod.

micro-java/pom.xml

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<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/maven-v4_0_0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.redhat.training.openshift</groupId>
+	<artifactId>micro-java</artifactId>
+	<version>1.0</version>
+	<packaging>war</packaging>
+	<name>Red Hat Training Hello Java app</name>
+	<description>Hello microservice using Thorntail</description>
+
+	<properties>
+		<!-- Explicitly declaring the source encoding eliminates the following
+			message: -->
+		<!-- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
+			resources, i.e. build is platform dependent! -->
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<failOnMissingWebXml>false</failOnMissingWebXml>
+
+		<!-- Thorntail dependency versions -->
+		<version.thorntail>2.4.0.Final</version.thorntail>
+
+		<!-- other plugin versions -->
+		<version.compiler.plugin>3.1</version.compiler.plugin>
+		<version.surefire.plugin>2.16</version.surefire.plugin>
+		<version.war.plugin>2.5</version.war.plugin>
+                <!--
+		<version.fabric8.plugin>3.1.80.redhat-000019</version.fabric8.plugin>
+		<version.fabric8.plugin>3.5.38</version.fabric8.plugin>
+                -->
+		<version.fabric8.plugin>4.1.0</version.fabric8.plugin>
+
+		<!-- maven-compiler-plugin -->
+		<maven.compiler.target>1.8</maven.compiler.target>
+		<maven.compiler.source>1.8</maven.compiler.source>
+
+	</properties>
+
+
+	<dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>io.thorntail</groupId>
+        <artifactId>bom-all</artifactId>
+        <version>${version.thorntail}</version>
+        <scope>import</scope>
+        <type>pom</type>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+	<dependencies>
+		<dependency>
+			<groupId>io.thorntail</groupId>
+			<artifactId>cdi</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>io.thorntail</groupId>
+			<artifactId>jaxrs</artifactId>
+		</dependency>
+
+	</dependencies>
+
+	<build>
+		<!-- Maven will append the version to the finalName (which is the name
+			given to the generated war, and hence the context root) -->
+		<finalName>hello</finalName>
+		<plugins>
+			<!-- The Thorntail Maven plugin creates an uber jar -->
+			<!-- To use, run: mvn thorntail:run -->
+			<plugin>
+        <groupId>io.thorntail</groupId>
+        <artifactId>thorntail-maven-plugin</artifactId>
+        <version>${version.thorntail}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>package</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>io.fabric8</groupId>
+        <artifactId>fabric8-maven-plugin</artifactId>
+        <version>${version.fabric8.plugin}</version>
+        <executions>
+          <execution>
+            <id>fmp</id>
+            <goals>
+              <goal>resource</goal>
+              <goal>build</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

micro-java/src/main/java/com/redhat/training/openshift/hello/HelloResource.java

@@ -0,0 +1,27 @@
+package com.redhat.training.openshift.hello;
+
+import javax.inject.Inject;
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+
+@Path("/")
+public class HelloResource {
+
+    @GET
+    @Path("/hello")
+    @Produces("text/plain")
+    public String hello() {
+        String hostname = System.getenv().getOrDefault("HOSTNAME", "unknown");
+	      String message = System.getenv().getOrDefault("APP_MSG", null);
+	      String response = "";
+
+      	if (message == null)
+      	  response = "Hello world from host "+hostname+"\n";
+      	else
+      	  response = "Hello world from host ["+hostname+"].";
+      	  response += "Message received = "+message+"\n";
+
+        return response;
+    }
+}

micro-java/src/main/java/com/redhat/training/openshift/hello/JaxRsActivator.java

@@ -0,0 +1,8 @@
+package com.redhat.training.openshift.hello;
+
+import javax.ws.rs.ApplicationPath;
+import javax.ws.rs.core.Application;
+
+@ApplicationPath("/api")
+public class JaxRsActivator extends Application {
+}