step-6-use-localstack-with-testcontainers.md

Step 6: Use LocalStack with Testcontainers

Add dependency to Spring Cloud AWS Testcontainers

Add a dependency to build.gradle:

testImplementation 'io.awspring.cloud:spring-cloud-aws-testcontainers'

Define a container

Define a LocalStack container in TestcontainersConfiguration:

@ServiceConnection
@Bean
LocalStackContainer localStackContainer() {
    return new LocalStackContainer(DockerImageName.parse("localstack/localstack:4.4.0"))
            .withCopyFileToContainer(MountableFile.forClasspathResource("init-localstack.sh", 0744), "/etc/localstack/init/ready.d/init-aws.sh");
}

Move init-localstack.sh to src/test/resources.

Remove credentials and region configuration from application.yml

Since @ServiceConnection configures Spring Boot application to connect to LocalStack, there is no need anymore to specify credentials, region and endpoint in application.yml

spring:
  cloud:
    aws:
      s3:
        path-style-access-enabled: true

Delete docker-compose.yml

We are not going to use docker-compose.yml. To start application locally, use TestSpringCloudAwsWorkshopApplication instead as it uses containers configured in TestcontainersConfiguration class.

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