Writing Dockerfiles

Overview

Teaching: 25 min
Exercises: 10 min

Questions

• What is a Dockerfile?

• How do I write my own Dockerfile?

• What are some Dockerfile “best practices”?

Objectives

• Explain what is a Dockerfile.

• Write a Dockerfile for one of your own research projects.

• Use an automated tool to check that your Dockerfile conforms with best practices.

Key Points

• A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

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• The official Dockerfile reference is the best resource for writing a Dockerfile.

• Always use a Dockerfile linter, such as fromlatest.io, to make sure that your Dockerfile conforms to “best practices”.