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BAEL-6007: multi-module maven project with docker
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‎docker-modules/docker-multi-module-maven/Dockerfile‎

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FROM maven:3.8.5-openjdk-17 AS MAVEN_TOOL_CHAIN
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COPY pom.xml /tmp/
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COPY api /tmp/api/
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COPY domain /tmp/domain/
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WORKDIR /tmp/
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RUN mvn clean install -X
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FROM openjdk:17
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COPY --from=MAVEN_TOOL_CHAIN /tmp/api/target/docker-multi-module-maven-api-0.0.1-SNAPSHOT.jar /app.jar
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ENTRYPOINT ["java", "-jar", "/app.jar"]

‎docker-modules/docker-multi-module-maven/README.md‎

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### Relevant Articles:

‎docker-modules/docker-multi-module-maven/api/countries.http‎

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GET http://localhost:8080/api/countries

‎docker-modules/docker-multi-module-maven/api/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>docker-multi-module-maven-api</artifactId>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>docker-multi-module-maven-parent</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>com.baeldung</groupId>
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<artifactId>docker-multi-module-maven-domain</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎docker-modules/docker-multi-module-maven/api/src/main/java/com/baeldung/api/Application.java‎

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package com.baeldung.api;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.autoconfigure.domain.EntityScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
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@SpringBootApplication
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public class Application {
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public static void main(String[] args) {
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SpringApplication.run(Application.class, args);
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}
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@Configuration
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@EntityScan(basePackages = "com.baeldung.domain")
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@EnableJpaRepositories(basePackages = "com.baeldung.domain")
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static class Config {
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}
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}

‎docker-modules/docker-multi-module-maven/api/src/main/java/com/baeldung/api/StaticDataLoader.java‎

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package com.baeldung.api;
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import com.baeldung.domain.Country;
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import com.baeldung.domain.CountryRepository;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.stereotype.Component;
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@Component
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class StaticDataLoader implements CommandLineRunner {
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private final CountryRepository countries;
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public StaticDataLoader(CountryRepository countries) {
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this.countries = countries;
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}
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@Override
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public void run(String... args) {
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countries.save(new Country(1L, "US", "United States", ":us:"));
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countries.save(new Country(2L, "CA", "Canada", ":canada:"));
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countries.save(new Country(3L, "GB", "United Kingdom", ":uk:"));
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countries.save(new Country(4L, "AU", "Romania", ":romania:"));
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}
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}

‎docker-modules/docker-multi-module-maven/api/src/main/java/com/baeldung/api/controller/CountriesController.java‎

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package com.baeldung.api.controller;
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import com.baeldung.domain.Country;
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import com.baeldung.domain.CountryRepository;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.List;
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import static java.util.stream.Collectors.toList;
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import static java.util.stream.StreamSupport.stream;
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@RestController
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public class CountriesController {
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private final CountryRepository countries;
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public CountriesController(CountryRepository countries) {
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this.countries = countries;
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}
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@GetMapping("api/countries")
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public List<CountryDto> index() {
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Iterable<Country> all = countries.findAll();
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return stream(all.spliterator(), false)
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.map(it -> new CountryDto(it.getId(), it.getName(), it.getIso(), null))
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.collect(toList());
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}
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}

‎docker-modules/docker-multi-module-maven/api/src/main/java/com/baeldung/api/controller/CountryDto.java‎

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package com.baeldung.api.controller;
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public class CountryDto {
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private final Long id;
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private final String name;
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private final String code;
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private final String emoji;
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public CountryDto(Long id, String name, String code, String emoji) {
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this.id = id;
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this.name = name;
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this.code = code;
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this.emoji = emoji;
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}
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public Long getId() {
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return id;
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}
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public String getName() {
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return name;
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}
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public String getCode() {
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return code;
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}
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public String getEmoji() {
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return emoji;
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}
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}

‎docker-modules/docker-multi-module-maven/api/src/main/resources/application.yml‎

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spring:
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jpa:
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hibernate:
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ddl-auto: create-drop
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level:
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org.springframework.jdbc.core: DEBUG
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org.hibernate.SQL: DEBUG

‎docker-modules/docker-multi-module-maven/domain/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>docker-multi-module-maven-domain</artifactId>
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<packaging>jar</packaging>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>docker-multi-module-maven-parent</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jpa</artifactId>
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</dependency>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<!-- Override Spring Boot plugin in this module to prevent it from running -->
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<executions>
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<execution>
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<id>repackage</id>
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<phase>none</phase>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

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