Make examples/instrumentation-quickstart a standalone gradle build (#289)

Author: aabmass

examples/instrumentation-quickstart/.mvn/wrapper/maven-wrapper.properties

@@ -14,20 +14,16 @@
 
 # Adapted from https://spring.io/guides/topicals/spring-boot-docker/#_multi_stage_build
 # syntax=docker/dockerfile:experimental
-FROM eclipse-temurin:17.0.9_9-jdk-alpine as build
+FROM eclipse-temurin:17-jdk-alpine AS build
 WORKDIR /workspace/app
 
-COPY mvnw .
-COPY .mvn .mvn
-COPY pom.xml .
-COPY src src
+COPY . /workspace/app
+RUN --mount=type=cache,target=/root/.gradle ./gradlew clean build
+RUN mkdir -p build/dependency && (cd build/dependency; jar -xf ../libs/*-SNAPSHOT.jar)
 
-RUN --mount=type=cache,target=/root/.m2 ./mvnw install -DskipTests
-RUN mkdir -p target/dependency && (cd target/dependency; jar -xf ../*.jar)
-
-FROM eclipse-temurin:17.0.9_9-jdk-alpine
+FROM eclipse-temurin:17-jdk-alpine
 VOLUME /tmp
-ARG DEPENDENCY=/workspace/app/target/dependency
+ARG DEPENDENCY=/workspace/app/build/dependency
 COPY --from=build ${DEPENDENCY}/BOOT-INF/lib /app/lib
 COPY --from=build ${DEPENDENCY}/META-INF /app/META-INF
 COPY --from=build ${DEPENDENCY}/BOOT-INF/classes /app

examples/instrumentation-quickstart/Dockerfile

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed 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.
+ */
+
+plugins {
+	id 'java'
+	id 'org.springframework.boot' version '2.7.18'
+	id 'io.spring.dependency-management' version '1.1.4'
+}
+
+group = 'com.example'
+version = '0.0.1-SNAPSHOT'
+description = 'OpenTelemetry instrumentation quickstart using Spring Boot'
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-webflux'
+
+	// Cannot be updated until logback is updated to 1.3+, probably in the next Spring Boot
+	// major version
+	implementation 'net.logstash.logback:logstash-logback-encoder:7.3'
+
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testImplementation 'org.testcontainers:testcontainers:1.19.4'
+	testImplementation 'com.google.truth:truth:1.4.0'
+	testImplementation "org.testcontainers:junit-jupiter:1.19.4"
+}
+
+tasks.named('test') {
+	useJUnitPlatform {
+		// Individual integration tests are annotated with @Tag('integrationTest')
+        excludeTags 'integrationTest'
+    }
+}
+
+tasks.register("integrationTest", Test) {
+    useJUnitPlatform {
+		includeTags 'integrationTest'
+    }
+}

examples/instrumentation-quickstart/build.gradle

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists