hands-on lab

Docker: Exploring the Dockerfile

Intermediate

Up to 3h

221

5/5

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Lab description

Learn how to create Docker images with Dockerfiles.

Gaining a mastery of Docker starts with the Dockerfile. Creating and maintaining Dockerfiles requires an understanding of the supported instructions. This hands-on lab explores the structure and usage of Dockerfiles.

Learning Objectives

At the end of this lab you'll be familiar with the following:

Dockerfile instructions
- FROM
- RUN
- COPY
- ADD
- ENTRYPOINT
- CMD
- EXPOSE
- ARG
- LABEL
Dockerfile concepts
- Multi-stage builds
- BuildKit enhanced RUN instructions

Prerequisites:

Introduction to Docker

Target Audience

Software engineers
Data engineers
DevOps engineers
Site reliability engineers

About the author

Ben Lambert, opens in a new tab

Software Engineer

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110,277

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Learning paths

Ben Lambert is a software engineer and was previously the lead author for DevOps and Microsoft Azure training content at Cloud Academy. His courses and learning paths covered Cloud Ecosystem technologies such as DC/OS, configuration management tools, and containers. As a software engineer, Ben’s experience includes building highly available web and mobile apps. When he’s not building software, he’s hiking, camping, or creating video games.

Covered topics

Lab steps

Web IDE Review

Introduction to Docker

Dockerfile Basics

COPY and ADD

CMD and ENTRYPOINT