Lecture 7 — Containers: Docker & Apptainer (3h)

Objectives

• Build and run Docker images; write Dockerfiles

• Understand Apptainer for HPC and converting Docker images

• Best practices for container reproducibility

Content summary

Motivation for containers. Dockerfile walkthrough, build and run examples, Jupyter in a container. Discuss Apptainer and running containers on HPC. Hands-on: containerize a small Python app.