Docker Foundations Hands-On Walkthrough

Get ready to learn Docker! Whether you've never heard of Docker or have some experience and want to brush up, this repo will help you, as the title implies:

• Learn about the foundational elements of Docker.
• Get you hands-on experience with Docker.

This repo can help you learn Docker basics which will give you a good understanding of:

• Why Docker matters.
• How Docker works.
• How to functionally use Docker for your own purposes.

This repo is heavy in Docker hands-on activities so that the result of your learning will be your ability to comfortably use Docker and both explain Docker concepts or teach them to someone else. I believe that learning the information in this repo will give you the skills necessary for the Docker exam topics in the Cisco DevNet Associate exam.

Get Started

To use this repo:

1. Download the repo files in one of two ways:
   • Use Git to clone the repo to your computer.
     • HTTP - git clone https://github.com/wwt/docker-foundations.git
     • SSH - git clone git@github.com:wwt/docker-foundations.git
   • If you don't know how to use Git, you can download the repo files at:
     • https://github.com/wwt/docker-foundations/archive/main.zip
2. Open the PowerPoint presentation docker-foundations.pptx and start slide show mode.
   • I use animation to help deliver the topics in small chunks and much of the presentation will look like a mess if you don't navigate the animation in slide show mode.
   • The hands-on sections lists all of the Docker commands you need to follow along with each task plus screen recordings which demonstrate each task.
   • I include presenter notes on every slide and if you have a second monitor you can click through the slide show and read the script concurrently.
3. The repo includes subfolders which contain reference files and scripts for the hands-on portion of the slide show.
   • The docker-image folder contains:
     • A complete copy of the Dockerfile you will build (Dockerfile).
     • A small Python script that you build into your Docker Image (my_script.py).
       • You do NOT need to know ANY Python to use this repo.
   • The docker-compose folder contains:
     • A Dockerfile to support the Images you will build with Docker Compose (Dockerfile).
     • A Docker Compose YAML file (docker-compose.yml).
     • A Python script which runs the web application you will build with Docker Compose (app.py).
   • The docker-commands folder contains:
     • Markdown files with all of the Docker commands fom the PowerPoint presentation, so you can copy and paste the commands to your terminal.
     • A quick reference for common Docker commands and flags.
4. You can find a quiz to test your Docker skills here.

Feedback

I welcome any feedback or changes to the repo. Please create a Git Pull Request or contact me if you want to make any changes and let me know if you have ANY questions; especially if you get stuck on something.

I wish you success with your Docker learning journey!

Tim Hull - tim.hull@wwt.com