[ivan_gammel]

Start the server and respond 503 every time when your database and other dependencies are not ready. Couldn’t be easier.

[stavepan]

Many people have the following setup in docker-compose.yml file.

version: '3' services: mysql: image: mysql:8.0

  app:
    build: .
    command: is_ready --timeout 10 --addr mysql:3306 -- <run migrations command>

For cases like this, returning 503 every time the database is not ready, is not very convenient.