4.0.0 com.baeldung.docker docker 0.0.1 docker Demo project showing Spring Boot and Docker pom com.baeldung parent-boot-2 0.0.1-SNAPSHOT ../parent-boot-2 docker-internal-dto docker-spring-boot docker-sample-app docker-caching/single-module-caching docker-caching/multi-module-caching docker-push-to-private-repo 11