#Docker

26 posts

Docker Basics #2: Writing Your First Dockerfile — FROM, RUN, COPY, CMD
9 min read

Docker Basics #2: Writing Your First Dockerfile — FROM, RUN, COPY, CMD

Building your first image for your own app. Pick a base with FROM, prepare the environment with RUN, drop in code with COPY, and pin a startup command with CMD. One full cycle, on a tiny Python app.

Docker Basics #1: What Is a Container — VM vs. Docker Ecosystem
9 min read

Docker Basics #1: What Is a Container — VM vs. Docker Ecosystem

Why Docker — how containers differ from virtual machines, why Docker emerged, and a tour of the Docker ecosystem built around Engine, CLI, Compose, and Hub.