# Dockerfile Essentials

Dockerfile Essentials: a cheat sheet for Containers at Journeyman level.

![Dockerfile Essentials](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/09/6a2efc59eed9498fb4b6d84c292b2106.png)

- Category: Containers
- Level: Journeyman
- Tags: configuration, containers, docker
- Updated: September 18, 2026

Source: https://www.ask-codey.com/cheat-sheets/dockerfile-essentials