Build multi architectural docker images via GitHub Actions

Steps

Create a New GitHub Repository as a Fork

1. Navigate to the workshop-github-actions repository.
2. Click the Fork button in the top-right corner of the page.
3. In the Create a fork dialog:
   • Select your GitHub account or organization where you want to create the fork.
   • Optionally, provide a name for the forked repository (default is workshop-github-actions).
   • Click Create fork.

Retrieve Your Docker Username and Password

1. Docker Username:
   Your Docker username is the name you use to log in to Docker Hub.

2. Docker Personal Access Token:

   • Log in to Docker Hub.
   • Navigate to your account settings.
   • Go to Personal Access Token
   • Click on Create Access Token.
   • Provide a name for the token (e.g., github-actions-token).
   • Select the desired expiration date for the token.
   • Under Access Permissions, ensure you grant read & write access to repositories.
   • Click Generate and copy the token.
     Note: Make sure to save the token securely as it will not be shown again.

Add Docker Credentials to GitHub Actions

1. Go to your GitHub repository.
2. Click on the Settings tab.
3. In the left sidebar, select Secrets and variables > Actions.
4. Click the New repository secret button.
5. Add the following secrets:
   • DOCKER_USER: Your Docker username.
   • DOCKER_PAT: Your Docker Personal Access Token we generated above.

Run the GitHub Actions Workflow

1. Go to the Actions page for your GitHub repository.
2. Trigger the image-build.yml workflow manually:
   • The workflow is located at .github/workflows/image-build.yml
   • From the Actions page, click Run workflow.
3. Monitor the workflow execution:
   • Check the progress and logs in the Actions tab.
   • Ensure the workflow completes successfully without errors.

Once the workflow finishes, your multi-architecture Docker images will be built and pushed to Docker Hub.