![PostgreSQL error: OperationalError: FATAL: role "username" does not exist - Database Administrators Stack Exchange PostgreSQL error: OperationalError: FATAL: role "username" does not exist - Database Administrators Stack Exchange](https://i.stack.imgur.com/Et7uY.jpg)
PostgreSQL error: OperationalError: FATAL: role "username" does not exist - Database Administrators Stack Exchange
![with docker-compose.yml "Root or postgres or any role does not exist", postgres, postgrest, swagger connect to db · Issue #756 · docker-library/ postgres · GitHub with docker-compose.yml "Root or postgres or any role does not exist", postgres, postgrest, swagger connect to db · Issue #756 · docker-library/ postgres · GitHub](https://user-images.githubusercontent.com/62343801/91239388-b2fb7000-e73f-11ea-80c4-e05987ae3d3e.png)
with docker-compose.yml "Root or postgres or any role does not exist", postgres, postgrest, swagger connect to db · Issue #756 · docker-library/ postgres · GitHub
![PostgreSQL:createdb: could not connect to database postgres: FATAL: Peer authentication failed for user “postgres” | LinkSprite Learning Center PostgreSQL:createdb: could not connect to database postgres: FATAL: Peer authentication failed for user “postgres” | LinkSprite Learning Center](http://www.openvein.com/ext/postgresql_sign_art.jpg)