Node.js Web Development - Fourth Edition

Deploying to the cloud with Docker compose

This is cool that we can create encapsulated instantiations of the software services we've created. But the promise was to use the Dockerized application for deployment on cloud services. In other words, we need to take all this learning and apply it to the task of deploying Notes on a public internet server with a fairly high degree of security.

We've demonstrated that, with Docker, Notes can be decomposed into four containers that have a high degree of isolation from each other, and from the outside world. 

There is another glaring problem:  our process in the previous section was partly manual, partly automated. We created scripts to launch each portion of the system, which is a good practice ...