Most tutorials miss these Basic and important concepts about Dockerization.

Recently, I began learning Docker from scratch. I found that most tutorials only explain how to set up everything in a single container since it’s simpler, but they rarely teach you how to set up a standalone container. This tutorial will cover those missing details. It took me a few hours to create my own container, but for standalone containers, I watched a bunch of tutorials, but nothing was useful. Now, let’s talk about what most tutorials miss about the Docker container. Dockerfile is only required when you want to use a custom image This thing 99% tutorial doesn’t teach you that the Docker container only needs a Dockerfile when you want to use your custom image, the custom image would be your NextJS and Django project , only if you want to run the project inside the Docker container. In that case, you need the Dockerfile since you need to install all the dependencies to run the NextJS and Django project. Also, you need to add some custom commands so that the project will automati