Closes #

Changes proposed in this pull request:

• Rename tls.yml to tls.yaml so it will be align to the entry in docker-compose-proxy.yml:

  volumes:

  • ./tls.yaml:/etc/traefik/tls.yaml

  To prevent error:
  error="error reading configuration file: /etc/traefik/tls.yaml - read /etc/traefik/tls.yaml: is a directory"

• Added parameter SERVER_DNS in the example.env

  To prevent warning:
  WARN[0000] The "SERVER_DNS" variable is not set. Defaulting to a blank string.

How to test the feature manually:

1. Copy example.env to .env
2. Run: docker compose -f docker-compose.yml -f docker-compose-proxy.yml -f docker-compose-db.yml up
3. There should be no warning and error for the tls.yaml and SERVER_DNS

Pull request checklist:

• clear commit messages
• code manually tested
• unit tests written (optional if too hard)
• documentation updated

Additional information can be found in the documentation.