Splitting Compose files

Throughout the Task Manager application development, we started using one simple Go application backed by a Redis database. Onward, we enhanced the functionality of our main application by adding two extra microservices. Since we ended up with a full-functional microservice-based application, we reckoned that more monitoring was needed; therefore, we added Prometheus and the Pushgateway to facilitate proper monitoring of our applications. Each step is required to incorporate the services into the Docker Compose file.

If we properly examine each step, we could identify components that are shared between applications and need to be available regardless of the applications we want to run. Those are core components that we should share with other services; thus, they can be logically grouped into a Compose file. More specifically, the networks and the database are a part of our core Compose project, which is essential for our application to run.

In our application...