Database connection relying on the legacy --link feature

[ThaChillera]

As the docs specify, link is a legacy feature that can be removed at any time. Is it possible to remove this feature, and replace it by connecting to the database over a docker network?

[roock]

When using docker-compose you can use the following environment variables to not use the link feature:

    environment:
      - DB_PORT_5432_TCP_ADDR=postgresql
      - DB_PORT_5432_TCP_PORT=5432
      - DB_HOST=postgresql
      - DB_PORT=5432
      - DB_NAME=ttrss
      - DB_USER=ttrss
      - DB_PASS=ttrss