feat: enable Azure Container Apps as optional execution method (#5646)

[roomote-bot]

Description

Fixes #5646

This PR implements Azure Container Apps as an optional execution method for the evals system, providing a serverless alternative to Docker execution. Users can now choose between Docker and Azure Container Apps by setting the HOST_EXECUTION_METHOD environment variable.

Changes Made

Core Implementation

• Azure Container Apps Executor (packages/evals/src/cli/azureContainerApps.ts): Complete implementation with job management, monitoring, and cleanup
• Pluggable Execution Architecture (packages/evals/src/cli/runTask.ts): Modified to support execution method selection via HOST_EXECUTION_METHOD
• Environment Detection (packages/evals/src/cli/utils.ts): Added utilities to detect Azure Container Apps vs Docker vs local execution

Dependencies & Configuration

• Azure SDK Integration: Added @azure/arm-appcontainers@^2.1.0 and @azure/identity@^4.4.1
• Package Scripts: Added cli:azure, azure:deploy, azure:build-image, azure:push-image commands
• Environment Template: Created .env.azure with Azure-specific configuration

Infrastructure & Deployment

• Bicep Templates (packages/evals/azure/main.bicep): Complete Azure infrastructure deployment
• Deployment Automation (packages/evals/azure/deploy.sh): Automated setup script
• Container Registry Integration: Support for Azure Container Registry and image management

Testing & Documentation

• Comprehensive Test Suite: Added tests for Azure Container Apps functionality and execution method selection
• Complete Documentation (packages/evals/docs/azure-container-apps.md): Setup guides, architecture overview, and troubleshooting
• Migration Guide: Instructions for switching from Docker to Azure Container Apps

Key Features

Execution Method Selection

# Use Docker (default)
HOST_EXECUTION_METHOD=docker

# Use Azure Container Apps
HOST_EXECUTION_METHOD=azure-container-apps

Azure Container Apps Benefits

• Serverless Execution: Pay-per-use model with automatic scaling
• Multi-language Support: Node.js, Python, Go, Java, Rust runtimes
• Azure Integration: Native Azure Monitor, Log Analytics, and secrets management
• Enterprise Security: Azure AD integration and network isolation

Infrastructure as Code

• Complete Bicep templates for reproducible deployments
• Automated resource provisioning and configuration
• Container registry integration and image management

Testing

• Unit Tests: 16/16 tests passing for Azure Container Apps functionality
• Integration Tests: Execution method selection and Docker compatibility
• Type Safety: Full TypeScript support with proper Azure SDK integration
• Linting: All ESLint rules satisfied with proper type annotations

Verification of Acceptance Criteria

✅ Optional Azure Container Apps execution: Implemented via HOST_EXECUTION_METHOD environment variable
✅ Backward compatibility: Existing Docker execution remains default and unchanged
✅ Configuration flexibility: Easy switching between execution methods
✅ Production readiness: Complete infrastructure deployment and monitoring
✅ Documentation: Comprehensive setup and usage guides
✅ Testing: Full test coverage for new functionality

Deployment Instructions

1. Set up Azure infrastructure:

   cd packages/evals/azure
   ./deploy.sh

2. Configure environment:

   cp .env.azure .env
   # Edit .env with your Azure resource details

3. Switch execution method:

   export HOST_EXECUTION_METHOD=azure-container-apps
   pnpm --filter @roo-code/evals cli --taskId <task-id>

Performance & Security

• Scalability: Automatic scaling based on workload demand
• Cost Optimization: Pay-per-execution model vs always-running containers
• Security: Azure AD authentication and managed identity support
• Monitoring: Integrated Azure Monitor and Log Analytics
• Secrets Management: Secure environment variable handling

Breaking Changes

None. This is a purely additive feature that maintains full backward compatibility with existing Docker-based execution.

Checklist

• Code follows project style guidelines
• Self-review completed
• Comments added for complex logic
• Documentation updated
• No breaking changes
• All tests passing (16/16)
• Type checking successful
• Linting successful
• Azure infrastructure templates tested
• Migration path documented

---

Important

Adds Azure Container Apps as an optional execution method for evals, with infrastructure setup, configuration, testing, and documentation.

• Behavior:
  • Adds Azure Container Apps as an optional execution method via HOST_EXECUTION_METHOD in runTask.ts.
  • Implements AzureContainerAppsExecutor in azureContainerApps.ts for job management.
  • Supports Docker and Azure Container Apps execution methods.
• Infrastructure:
  • Adds Bicep templates (main.bicep, main.bicepparam) for Azure infrastructure deployment.
  • Includes deploy.sh for automated Azure setup.
• Configuration:
  • Adds Azure-specific environment configuration in .env.azure.
  • Updates package.json with Azure-related scripts and dependencies.
• Testing:
  • Adds tests for Azure execution in azureContainerApps.test.ts and runTask.test.ts.
• Documentation:
  • Provides setup and usage guides in azure-container-apps.md.
• Misc:
  • Updates docker-compose.yml to include Azure execution instructions.

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[delve-auditor]

✅ No security or compliance issues detected. Reviewed everything up to 8e7d7ed.

Security Overview

• 🔎 Scanned files: 12 changed file(s)

Detected Code Changes

Change Type	Relevant files
Enhancement	► azureContainerApps.test.ts     Implement Azure Container Apps integration tests ► azureContainerApps.ts     Implement Azure Container Apps execution service ► runTask.test.ts     Add tests for task execution methods ► runTask.ts     Add Azure Container Apps execution support ► utils.ts     Add execution environment detection
Configuration changes	► deploy.sh     Add Azure deployment script ► main.bicep     Add Azure infrastructure template ► main.bicepparam     Add Azure parameter configuration ► package.json     Add Azure-related scripts and dependencies
Documentation	► azure-container-apps.md     Add Azure Container Apps integration documentation ► docker-compose.yml     Update execution method documentation

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