Combining Compose Files

So far, we have run our multi-container application in a monolithic way, where the application is run by specifying a Compose file that contains application containers, containers for databases such as Redis, and applications for monitoring purposes such as Prometheus. This will serve us well in the beginning; however, always running the application with all the dependencies available might bring us issues. Running a full-fledged application can consume many resources, it can be harder to troubleshoot issues, and it can prevent you from being focused on a certain component that requires your attention. There could be scenarios where you might want to use only one component and avoid interacting with or initiating other components. Also, there might be cases where you don’t want to have monitoring enabled or any other stack that assists your application but is not directly related to the scope of your application.

Compose provides us with the option...