Session 9: Deployment and Performance Optimization

Emmanuel BRUNO
emmanuel.bruno@univ-tln.fr

Université de Toulon

LIS UMR CNRS 7020

2026-10-05

Session 9: Deployment and Performance Optimization

Session Structure

  • Introduction to Deployment
  • Continuous Integration and Continuous Deployment (CI/CD)
  • Performance Optimization Techniques
  • Hands-on Project: Deploying and Optimizing a Web Application

Introduction to Deployment

What is Deployment?

  • The process of making an application available for use.
  • Involves transferring the application from a local environment to a production environment.

Types of Deployment

  • Manual Deployment: Manually transferring files and configuring servers.
  • Automated Deployment: Using tools and scripts to automate the deployment process.

Common Hosting Platforms

  • Cloud Providers: AWS, Google Cloud, Microsoft Azure
  • Platform-as-a-Service (PaaS): Heroku, Vercel, Netlify
  • Traditional Hosting: Shared hosting, VPS

Continuous Integration and Continuous Deployment (CI/CD)

What is CI/CD?

  • A set of practices for automating the development, testing, and deployment of applications.

Benefits of CI/CD

  • Faster development cycles.
  • Improved code quality.
  • Reduced risks of errors.

CI/CD Tools

  • GitHub Actions, GitLab CI, CircleCI, Travis CI

Hands-on Exercise

  • Set up a simple CI/CD pipeline using GitHub Actions.

Performance Optimization Techniques

Minification and Compression

  • Reducing the size of JavaScript, CSS, and HTML files.
  • Tools: UglifyJS, CSSNano, HTMLMinifier

Caching

  • Storing static assets (images, CSS, JS) to reduce server load.
  • Types of Caching:
    • Browser Caching: Storing assets in the user’s browser.
    • Server-Side Caching: Storing assets on the server.
    • CDN Caching: Storing assets on Content Delivery Networks.

Content Delivery Networks (CDNs)

  • Distributing content across multiple servers for faster delivery.
  • Examples: Cloudflare, Akamai, Amazon CloudFront

Code Optimization

  • Identifying and fixing performance bottlenecks.
  • Using efficient algorithms and data structures.
  • Tools: Lighthouse, WebPageTest

Hands-on Project: Deploying and Optimizing a Web Application

Project Goals

  • Deploy a web application to a chosen hosting platform.
  • Implement performance optimization techniques.

Steps

  1. Choose a Hosting Platform:
    • Select a platform like Heroku, Vercel, or Netlify.
    • Follow their documentation to set up your account and project.
  2. Set Up a CI/CD Pipeline:
    • Use tools like GitHub Actions or GitLab CI to automate the deployment process.
    • Create a configuration file to define the steps for building and deploying your application.
  3. Implement Minification and Compression:
    • Use tools like UglifyJS for JavaScript, CSSNano for CSS, and HTMLMinifier for HTML.
    • Integrate these tools into your build process to reduce file sizes.
  4. Configure Caching Strategies:
    • Set up browser caching by adding cache-control headers to your server responses.
    • Use server-side caching to store frequently accessed data.
    • Implement CDN caching to distribute your content globally.
  5. Use a CDN:
    • Choose a CDN provider like Cloudflare or Amazon CloudFront.
    • Configure your CDN to cache and serve your static assets.
  6. Optimize Your Code:
    • Identify performance bottlenecks using tools like Lighthouse.
    • Refactor your code to use efficient algorithms and data structures.
    • Test your optimizations to ensure they improve performance.
  7. Test Your Application’s Performance:
    • Use tools like Lighthouse and WebPageTest to measure your application’s performance.
    • Analyze the results and make further optimizations as needed.

Additional Tips

  • Documentation: Always refer to the official documentation of the tools and platforms you are using.
  • Community Support: Utilize community forums and support channels for troubleshooting.
  • Continuous Learning: Stay updated with the latest trends and best practices in deployment and performance optimization.

This improved plan offers a comprehensive introduction to deployment and performance optimization. It provides context, highlights core concepts, and introduces practical tools and techniques with a hands-on project. Feel free to adjust the content based on your course duration and student experience.