What Is Dockerfile Extension?

What Is Dockerfile Extension?

A Dockerfile is a simple text file that contains instructions for building a Docker image. It’s like a recipe. Each line in the Dockerfile represents a command. When you run the Docker build command, it reads the Dockerfile and generates a Docker image. This image can then be used to launch new containers. Unlike traditional files that have an extension at the end, like report.pdf, draft.docx, and image.jpg. Traditionally, The docker file has no extension. It simply named Dockerfile without any extension type....

Dockerfile with no extension VS file with .dockerfile extension

There is no difference between a Dockerfile with no extension and a file with a .dockerfile extension. They both serve the same purpose to build Docker images. Using .dockerfile is useful when working with different docker files in the same project. These different docker files could be used for different environments as tests. dockerfile, dev. dockerfile, uat. dockerfile, prod. dockerfile....

Creating and Using Dockerfile

Using File Explorer and Notepad...

Syntax of a Dockerfile

Each line of the dockerfile is just a command, these comamnds need to follow a certain syntax and pattern. There are a lot of dockerfile commands that can be used to create a docker image. Some of the commonly used commands to write dockerfiles are...

Example Dockerfile

This is a very simple Dockerfile that can be used to run a python script inside a container....

Dockerfile Extension – FAQs

Why doesn’t Dockerfile have an extension?...