Testcontainers MongoDB with volume and fixed ports.

0_README.md

Testcontainers MongoDB with volume and fixed ports

For the example, I'm using SpringBoot in DevMode. It is the only mode I consider that makes sense to enable the volume mapping.

Remember to add .data/ to .gitignore

build.gradle.kts

plugins {
    java
    idea
    id("org.springframework.boot") version "3.1.3"
    id("io.spring.dependency-management") version "1.1.0"
}

group = "dev.aleixmorgadas"
version = "0.0.1"
java.sourceCompatibility = JavaVersion.VERSION_17

configurations {
    compileOnly {
        extendsFrom(configurations.annotationProcessor.get())
    }
}

repositories {
    mavenCentral()
}

extra["testcontainersVersion"] = "1.18.3"


dependencies {
    // Web
    implementation("org.springframework.boot:spring-boot-starter-web")

    // Persistence
    implementation("org.springframework.boot:spring-boot-starter-data-mongodb")


    // Testing
    testImplementation("org.springframework.boot:spring-boot-starter-test")
    testImplementation("org.springframework.boot:spring-boot-devtools")
    testImplementation("org.springframework.boot:spring-boot-testcontainers")
    testImplementation("org.testcontainers:junit-jupiter")
    testImplementation("org.testcontainers:mongodb")
    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
}

dependencyManagement {
    imports {
        mavenBom("org.testcontainers:testcontainers-bom:${property("testcontainersVersion")}")
    }
}

tasks.withType<Test> {
    useJUnitPlatform()
}

RunApplication.java

package dev.aleixmorgadas;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.devtools.restart.RestartScope;
import org.springframework.boot.test.context.TestConfiguration;
import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
import org.springframework.context.annotation.Bean;
import org.testcontainers.containers.BindMode;
import org.testcontainers.containers.MongoDBContainer;
import org.testcontainers.utility.DockerImageName;

import java.util.List;

@TestConfiguration(proxyBeanMethods = false)
public class RunApplication {
    public static void main(String[] args) {
        SpringApplication.from(EnablingFlowApplication::main)
                .with(RunApplication.class)
                .run(args);
    }

    @Bean
    @RestartScope
    @ServiceConnection
    MongoDBContainer mongoContainer() {
        return new MongoDBContainer(DockerImageName.parse("mongo:6.0.8")) {
            @Override
            public void configure() {
                withFileSystemBind("./.data", "/data/db");
                waitingFor(Wait.forLogMessage("(?i).*waiting for connections.*", 1));
                setPortBindings(List.of("55555:27017"));
            }

            @Override
            protected void containerIsStarted(InspectContainerResponse containerInfo, boolean reused) {
                // Disable default configuration
            }
        };
    }
}