how can i setup postgres sql(coolify) in django web-app for production?

please help me to configure variable environment.

from decouple import config
import dj_database_url

if DEBUG:
    default_db = f"sqlite:///{BASE_DIR}/db.sqlite3"
else:
    default_db = None


DATABASES = {
    "default": dj_database_url.config(
        default=None,
        conn_max_age=600,
    )
}