ENV

https://plugins.jetbrains.com/plugin/7861-envfile

DATABASE

https://eu-central-1.console.aws.amazon.com/rds/home?region=eu-central-1#database:id=spring-boot-template;is-cluster=false

org.postgresql.util.PSQLException: The connection attempt failed - https://stackoverflow.com/questions/61062027/aws-rds-to-pgadmin-error-saving-properties-unable-to-connect-to-server-timeout

FILE STORAGE

https://s3.console.aws.amazon.com/s3/buckets?region=eu-central-1

Websocket

https://stackoverflow.com/questions/45405332/websocket-authentication-and-authorization-in-spring