feat(user-service): initial commit

Author: parthokr

services/user-service/.gitattributes

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+/gradlew text eol=lf
+*.bat text eol=crlf
+*.jar binary

services/user-service/.gitignore

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+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

services/user-service/Dockerfile

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+FROM gradle:9.1.0-jdk25 AS builder
+
+WORKDIR /home/gradle/project
+
+COPY build.gradle settings.gradle ./
+COPY src ./src
+
+RUN gradle clean build --no-daemon -x test
+
+FROM eclipse-temurin:25-jre AS runtime
+
+LABEL maintainer="partho.kr@proton.me" \
+      version="1.0.0" \
+      description="User service for HeapDog"
+
+ENV JAVA_OPTS="" \
+    SERVER_PORT=8080 \
+    SPRING_PROFILES_ACTIVE="prod"
+
+
+RUN groupadd -r appgroup && useradd -r -g appgroup appuser
+
+WORKDIR /app
+VOLUME /tmp
+
+ARG JAR_FILE=build/libs/*.jar
+
+COPY --from=builder --chown=appuser:appgroup /home/gradle/project/${JAR_FILE} app.jar
+
+EXPOSE ${SERVER_PORT}
+
+HEALTHCHECK --interval=30s --timeout=3s --start-period=30s --retries=3 \
+  CMD curl -f http://localhost:${SERVER_PORT}/actuator/health || exit 1
+
+USER appuser
+
+ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]

services/user-service/build.gradle

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+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '4.0.0'
+    id 'io.spring.dependency-management' version '1.1.7'
+}
+
+group = 'io.heapdog'
+version = '0.0.1-SNAPSHOT'
+description = 'Demo project for Spring Boot'
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(25)
+    }
+}
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+ext {
+    set('springCloudVersion', "2025.1.0")
+}
+
+dependencies {
+    implementation 'org.springframework.cloud:spring-cloud-starter-gateway-server-webmvc'
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+dependencyManagement {
+    imports {
+        mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
+    }
+}
+
+tasks.named('test') {
+    useJUnitPlatform()
+}

services/user-service/gradle/wrapper/gradle-wrapper.jar

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

services/user-service/gradle/wrapper/gradle-wrapper.properties

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+rootProject.name = 'user-service'

services/user-service/settings.gradle

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+package io.heapdog.userservice;
+
+
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+public class User {
+
+    private int id;
+    private String name;
+    private String email;
+
+}

services/user-service/src/main/java/io/heapdog/userservice/User.java

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+package io.heapdog.userservice;
+
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/users")
+public class UserController {
+
+    private final List<User> users = List.of(
+            User.builder().id(1).name("User1").build(),
+            User.builder().id(2).name("User2").build()
+    );
+
+    @GetMapping
+    public List<User> getAllUsers() {
+        return users;
+    }
+
+
+    @GetMapping("/hostname")
+    public String getHostName() {
+        try {
+            return java.net.InetAddress.getLocalHost().getHostName();
+        } catch (Exception e) {
+            return "unknown";
+        }
+    }
+
+}

services/user-service/src/main/java/io/heapdog/userservice/UserController.java

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+package io.heapdog.userservice;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class UserServiceApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(UserServiceApplication.class, args);
+    }
+
+}