Containerize and Deploy Java Applications

Ayan Gupta demonstrates how the GitHub Copilot app modernization extension containerizes a Java 21 application with Docker, validates it locally, and then provisions Azure infrastructure and deploys to Azure Container Apps using built-in tasks and an agent-driven workflow.

Overview

This episode shows an end-to-end workflow for taking an upgraded Java application (Java 21), containerizing it, testing it locally, and deploying it to Azure.

Containerize the Java app with Copilot tasks

• Uses the GitHub Copilot app modernization extension’s built-in containerization task to:
  • Generate Dockerfiles
  • Build container images automatically

Agent-driven workflow pattern

Copilot follows a consistent execution pattern:

• Analyze
• Plan
• Get approval
• Execute

The video highlights how to:

• Review the containerization plan before execution
• Edit the plan if needed, then approve it for execution

Validate locally before deploying

• Runs and tests the containerized application locally
• Switches to H2 for local testing

Provision Azure infrastructure and deploy

• Uses the “Provision Infrastructure and Deploy to Azure” task to:
  • Generate Bicep (IaC)
  • Provision required Azure resources
  • Deploy the application to Azure Container Apps

Deployment plan artifacts

Copilot generates supporting artifacts as part of the deployment plan, including:

• Architecture diagrams
• Security configurations
• Execution steps

Links

• Series playlist: https://www.youtube.com/playlist?list=PLlrxD0HtieHhaBJWlcxGd-kTDikSD4xyD
• GitHub Copilot Modernization extension: https://aka.ms/GHCPMod-Java
• Azure Container Apps: https://aka.ms/containerapps