https://raphaeldelio.medium.com/how-to-test-the-integration-between-google-cloud-storage-and-spring-boot-using-testcontainers-561a83fad5ac https://github.com/fsouza/fake-gcs-server https://cloud.google.com/pubsub/docs/emulator
https://spring.io/projects/spring-cloud-gcp https://www.baeldung.com/java-google-cloud-storage https://medium.com/@raviyasas/spring-boot-file-upload-with-google-cloud-storage-5445ed91f5bc https://github.com/raviyasas/springboot-gcs-demo/blob/master/src/main/java/com/app/util/DataBucketUtil.java https://googlecloudplatform.github.io/spring-cloud-gcp/reference/html/