[chore] Build and publish application hosted in the repository for the Java instrumentation E2E test

.github/workflows/publish-autoinstrumentation-e2e-images.yaml

@@ -23,6 +23,11 @@ jobs:
     with:
       language: golang
       platforms: linux/arm64,linux/amd64,linux/s390x,linux/ppc64le
+  java:
+    uses: ./.github/workflows/reusable-publish-autoinstrumentation-e2e-images.yaml
+    with:
+      language: java
+      platforms: linux/arm64,linux/amd64,linux/s390x,linux/ppc64le
   apache-httpd:
     uses: ./.github/workflows/reusable-publish-autoinstrumentation-e2e-images.yaml
     with:

tests/instrumentation-e2e-apps/java/DemoApplication.java

@@ -0,0 +1,23 @@
+package com.example.app;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+
+
+@RestController
+@SpringBootApplication
+public class DemoApplication {
+
+    @RequestMapping("/")
+    String home() {
+        return "Hello World!";
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(DemoApplication.class, args);
+    }
+
+}

tests/instrumentation-e2e-apps/java/Dockerfile

@@ -0,0 +1,23 @@
+FROM --platform=$BUILDPLATFORM eclipse-temurin:17-jdk-focal as builder
+
+RUN apt update
+RUN apt install zip unzip -y
+
+RUN mkdir /app
+
+# In some archs, there could be probems setting the executable permissions
+RUN mkdir /app/.gradle
+RUN chmod -R +x /root/
+
+RUN curl -s "https://get.sdkman.io" | bash
+RUN bash -c "source $HOME/.sdkman/bin/sdkman-init.sh && sdk install springboot && spring init /app"
+
+WORKDIR /app
+COPY DemoApplication.java /app/src/main/java/com/example/app/
+COPY build.gradle .
+RUN ./gradlew bootJar --no-daemon
+
+FROM eclipse-temurin:17.0.8.1_1-jre
+
+COPY --from=builder /app/build/libs/app-0.0.1-SNAPSHOT.jar .
+ENTRYPOINT ["java", "-jar", "app-0.0.1-SNAPSHOT.jar"]

tests/instrumentation-e2e-apps/java/build.gradle

@@ -0,0 +1,25 @@
+plugins {
+	id 'java'
+	id 'org.springframework.boot' version '3.1.3'
+	id 'io.spring.dependency-management' version '1.1.3'
+}
+
+group = 'com.example'
+version = '0.0.1-SNAPSHOT'
+
+java {
+	sourceCompatibility = '17'
+}
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	testImplementation 'org.springframework.boot:spring-boot-starter-web-test'
+}
+
+tasks.named('test') {
+	useJUnitPlatform()
+}