Add Quarkus REST application

- Java 17 with Quarkus 3.6.0
- REST endpoint /hello
- Health check endpoint /hello/health
- JUnit tests with RestAssured
- Optimized Dockerfile for production
- Ready for CI/CD pipeline

Dockerfile

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+FROM registry.access.redhat.com/ubi8/openjdk-17:1.18
+
+ENV LANGUAGE='en_US:en'
+
+COPY target/quarkus-app/lib/ /deployments/lib/
+COPY target/quarkus-app/*.jar /deployments/
+COPY target/quarkus-app/app/ /deployments/app/
+COPY target/quarkus-app/quarkus/ /deployments/quarkus/
+
+EXPOSE 8080
+USER 185
+ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
+ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
+
+ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]

pom.xml

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+<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>dev.lions</groupId>
+    <artifactId>test-lionsctl</artifactId>
+    <version>1.0.0</version>
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.version>3.6.0</quarkus.platform.version>
+    </properties>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>io.quarkus.platform</groupId>
+                <artifactId>quarkus-bom</artifactId>
+                <version>${quarkus.platform.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+    <dependencies>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-reactive</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-junit5</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus.platform</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+                <version>${quarkus.platform.version}</version>
+                <extensions>true</extensions>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>build</goal>
+                            <goal>generate-code</goal>
+                            <goal>generate-code-tests</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/dev/lions/HelloResource.java

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+package dev.lions;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+
+@Path("/hello")
+public class HelloResource {
+
+    @GET
+    @Produces(MediaType.TEXT_PLAIN)
+    public String hello() {
+        return "Hello from LionsCtl CI/CD Pipeline!";
+    }
+    
+    @GET
+    @Path("/health")
+    @Produces(MediaType.TEXT_PLAIN)
+    public String health() {
+        return "OK";
+    }
+}

src/main/resources/application.properties

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+# Application Configuration
+quarkus.http.port=8080
+quarkus.http.host=0.0.0.0
+
+# Health check configuration  
+quarkus.health.extensions.enabled=true
+
+# Logging configuration
+quarkus.log.level=INFO
+quarkus.log.console.enable=true
+quarkus.log.console.format=%d{HH:mm:ss} %-5p [%c{2.}] (%t) %s%e%n
+
+# Container image configuration (for Quarkus native build)
+quarkus.container-image.build=true
+quarkus.container-image.group=registry.lions.dev
+quarkus.container-image.name=test-lionsctl
+quarkus.container-image.tag=latest

src/test/java/dev/lions/HelloResourceTest.java

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+package dev.lions;
+
+import io.quarkus.test.junit.QuarkusTest;
+import org.junit.jupiter.api.Test;
+
+import static io.restassured.RestAssured.given;
+import static org.hamcrest.CoreMatchers.is;
+
+@QuarkusTest
+public class HelloResourceTest {
+
+    @Test
+    public void testHelloEndpoint() {
+        given()
+          .when().get("/hello")
+          .then()
+             .statusCode(200)
+             .body(is("Hello from LionsCtl CI/CD Pipeline!"));
+    }
+
+    @Test
+    public void testHealthEndpoint() {
+        given()
+          .when().get("/hello/health")
+          .then()
+             .statusCode(200)
+             .body(is("OK"));
+    }
+}