Unable to run migration with `docker-compose` in

Bug description

First of all, I love Prisma, and thank you for the development of such a great tool. Unfortunately I am unable to make it working with docker-compose locally. I am stuck in the setup prisma guide (https://www.prisma.io/docs/getting-started/setup-prisma/start-from-scratch/relational-databases/using-prisma-migrate-typescript-postgres). Where when I run command npx prisma migrate dev --name init I get response:

Environment variables loaded from .env
Prisma schema loaded from prisma/schema.prisma
Datasource "db": PostgreSQL database "postgres", schema "public" at "localhost:5432"

Error: P1010: User `user` was denied access on the database `postgres.public`

docker-compose.yml:

services:
  db:
    image: postgres:12
    restart: always
    env_file:
      - ./db/.env
    environment:
      POSTGRES_USER: user
      POSTGRES_PASSWORD: 123
    ports:
      - 5432:5432

.env:

DATABASE_URL=postgresql://user:123@localhost:5432/postgres?schema=public&connection_limit=250&pool_timeout=0

How to reproduce

Expected behavior

Prisma information

Environment & setup

Prisma Version

3.10.0

[vaclav-stummer]

It has correct permission within the docker container (super admin and other required ones). It seems more like some docker issue, for prototyping it should be fine. When I tried to open the roles in the DBeaver it seems the user is not created there for some reason

[vaclav-stummer]

So I find out the issue. For some reason I need to pass my system root user to the DATABASE_URL so instead of DATABASE_URL=postgresql://user:example@localhost:5432/postgres?schema=public&connection_limit=250&pool_timeout=0 must be used DATABASE_URL=postgresql://[MY_ROOT_USER]:example@localhost:5432/postgres?schema=public&connection_limit=250&pool_timeout=0