Mock AD environment for CI/CD testing

Description

Build containerized mock Active Directory environment for automated CI/CD pipeline testing without requiring real AD infrastructure.

Components

1. Windows Server 2022 Container

   • Active Directory Domain Services
   • DNS server (configured for domain)
   • LDAP listening on 389/636
   • Kerberos on 88

2. Exchange Server Mock

   • SMTP server (port 25, 587, 465)
   • POP3 server (port 110, 995)
   • IMAP server (port 143, 993)
   • EWS endpoints (HTTPS)

3. Test Data

   • Sample AD users and groups
   • Service Principal Names (SPNs)
   • ADCS certificate templates
   • Exchange mailboxes

Implementation

• Docker Compose orchestration
• Minimal resource footprint (~4GB)
• Startup time < 60 seconds
• Pre-populated with test data
• Health check endpoints

Files to Create

• docker-compose.test.yml
• docker/ad-mock/Dockerfile
• docker/exchange-mock/Dockerfile
• scripts/setup-test-data.ps1
• .github/workflows/integration-tests.yml

Success Criteria

• Full AD environment spins up in < 60s
• All framework tools can target it successfully
• Used in automated CI/CD pipeline
• Supports parallel test execution

Start by reviewing the requested files: docker-compose.test.yml, both Dockerfiles, scripts/setup-test-data.ps1, and .github/workflows/integration-tests.yml. Define how the mock AD and Exchange components, test data, health checks, and orchestration fit together before implementation. Done means the environment starts within 60 seconds, supports the listed services and test data, and runs in CI with parallel tests.