Why are parameters not passed from parameters.yml?

Question

symfony

The project is raised under the docker, for some reason the database connection parameters are not transferred.
Already tried everything.
parameters.yml:

config.yml:

This is what Symfony writes:

What is written in parameters.yml from under the container:

Answer 1

In parameters.yml, you need to write real values, not substitutions.

parameters:
    database_driver:   pdo_mysql
    database_host:     127.0.0.1
    database_port:     ~
    database_name:     symfony
    database_user:     root
    database_password: ~