docker-actions-demo

Build a Docker image with GitHub actions

Pre-requisites

• Create your GitHub account
• Create your Docker Hub account

Steps

1. Fork this repo

Click the 'Fork' button at the right corner of the screen and confirm by clicking 'Create Fork'. This will create a new repo in your account with the content of this one.

2. Create a Docker Hub repo

Log in to Docker Hub in your browser and hit 'Create repository'. Name the repo 'actions-demo', then click 'Create'.

Make sure you keep this repo as public.

3. Add your Docker Hub credentials to GitHub Secrets

You should have your Docker Hub username and password.

• In your forked repo, click the 'Settings' tab at the top.
• Under 'security', you'll see the 'Secrets' section, expand it and hit 'Actions'
• Create two new repository secrets by clicking the 'New repository secret' button:
  • name one as DOCKER_USERNAME and assign its value to your Docker Hub username (not your email);
  • name the other as DOCKER_PASSWORD and assign its value to your Docker Hub password.

4. Customize the image and publish it to your Docker Hub account

This repo has a GitHub action configured so every time you push a new commit to the main branch, an image is pushed to your Docker Hub 'actions-demo' repo. To make sure it works,

• in your browser go to the app.py file of this repo
• click on the pencil icon to edit the file
• change the values of the vars name and os with your name and the os you are using, respectively.
• click on the green button at the bottom, 'Commit changes'
• go to the 'Actions' tab, you should see an action being triggered and successfully completed.