Workflow Verification, Branch Protection, Summary, and Related Resources

2. Monitor the workflow execution 1. Go to the Actions tab in your GitHub repository. 2. Click into the workflow run to follow each step: **build**, **test**, and (if successful) **push**. 3. Verify the Docker image on Docker Hub - After a successful workflow run, visit your [Docker Hub repositories](https://hub.docker.com/repositories). - You should see a new image under your repository with: - Repository name: `${your-repository-name}` - Tags include: - `latest` – represents the most recent successful build; ideal for quick testing or deployment. - `<short-sha>` – a unique identifier based on the commit hash, useful for version tracking, rollbacks, and traceability. > [!TIP] Protect your main branch > To maintain code quality and prevent accidental direct pushes, enable branch protection rules: > - Navigate to your **GitHub repo → Settings → Branches**. > - Under Branch protection rules, click **Add rule**. > - Specify `main` as the branch name. > - Enable options like: > - *Require a pull request before merging*. > - *Require status checks to pass before merging*. > > This ensures that only tested and reviewed code is merged into `main` branch. --- ## Summary In this section, you set up a complete CI/CD pipeline for your containerized React.js application using GitHub Actions. Here's what you accomplished: - Created a new GitHub repository specifically for your project. - Generated a secure Docker Hub access token and added it to GitHub as a secret. - Defined a GitHub Actions workflow to: - Build your application inside a Docker container. - Run tests in a consistent, containerized environment. - Push a production-ready image to Docker Hub if tests pass. - Triggered and verified the workflow execution through GitHub Actions. - Confirmed that your image was successfully published to Docker Hub. With this setup, your React.js application is now ready for automated testing and deployment across environments — increasing confidence, consistency, and team productivity. --- ## Related resources Deepen your understanding of automation and best practices for containerized apps: - [Introduction to GitHub Actions](/guides/gha.md) – Learn how GitHub Actions automate your workflows - [Docker Build GitHub Actions](/manuals/build/ci/github-actions/_index.md) – Set up container builds with GitHub Actions - [Workflow syntax for GitHub Actions](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions) – Full reference for writing GitHub workflows - [Compose file reference](/compose/compose-file/) – Full configuration reference for `compose.yaml` - [Best practices for writing Dockerfiles](/develop/develop-images/dockerfile_best-practices/) – Optimize your image for performance and security --- ## Next steps Next, learn how you can locally test and debug your React.js workloads on Kubernetes before deploying. This helps you ensure your application behaves as expected in a production-like environment, reducing surprises during deployment.

This section explains how to monitor workflow execution in GitHub Actions and verify the Docker image on Docker Hub, including checking for 'latest' and short SHA tags. It emphasizes protecting the main branch by enabling branch protection rules, requiring pull requests and status checks before merging. The summary recaps the creation of a CI/CD pipeline for a containerized React.js application using GitHub Actions, covering building, testing, and pushing images to Docker Hub. The section concludes with related resources for deeper understanding of automation and containerization best practices, and suggests learning about local testing and debugging on Kubernetes as the next step.