docker-compose up

■build cd javaproject mvn package

java --version mvn -version

https://qiita.com/mfunaki/items/dc09764cb08bb787c261 https://qiita.com/makoxti/questions/195ae6dd67ad7bdf164c

docker-compose exec app bash cd pictgram ./mvnw clean install ./mvnw spring-boot:run