PostgreSQL Setup

1. If PostgreSQL is already installed on your machine, port 5432 is likely occupied. In that case, choose an alternative port, such as 5433.

2. In your docker-compose.yml file, map the port like this: ports: "your_custom_port:5432".

Metabase Setup

1. The default host_db_port in docker-compose.yml is set to 5432, unless you're running Metabase outside Docker. Since DBeaver will connect to the PostgreSQL instance inside the Docker container, make sure to connect using the custom port you defined earlier.

2. Because the database is hosted locally within Docker, use host.docker.internal as the hostname when connecting.