docs: add comprehensive Sprint 3 planning document

Sprint 3 Focus: Infrastructure as Code + Testing Framework Key Issues: - #16: Complete Testing Framework (5-6 days) - #20: Infrastructure as Code - Terraform + Helm (5-6 days) - #17: Enhanced CI Pipeline (2-3 days) - #25: Auto Documentation Publishing (3-4 days) - #24: Enhanced Security Scanning (3-4 days) - #23: Performance Testing Suite (3-4 days) Sprint Duration: 2 weeks (10 days) Planned Commitment: 15-19 days of work Success Criteria: >80% test coverage, IaC operational, CI <5min 🤖 Generated with Claude Code Co-Authored-By: Claude Sonnet 4.5 <[email protected]>
2025-12-31 13:12:04 +08:00
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+# Sprint 3 Planning - Infrastructure & Testing
+
+> **Sprint Duration:** Week 5-6 (2 weeks)
+> **Start Date:** 2025-12-31
+> **Target Completion:** 2025-01-14
+> **Focus:** Infrastructure as Code + Complete Testing Framework
+
+---
+
+## 📊 Sprint Overview
+
+**Sprint Goal:** Establish production-ready infrastructure and comprehensive testing framework
+
+**Key Objectives:**
+1. Implement Infrastructure as Code (Terraform + Helm)
+2. Build complete testing framework (Unit + Integration + E2E)
+3. Enhance CI pipeline with parallel execution and caching
+4. Set up automated documentation publishing
+
+**Success Criteria:**
+- [ ] Infrastructure reproducible via code
+- [ ] Test coverage >80%
+- [ ] CI pipeline <5 minutes
+- [ ] Documentation auto-deployed
+
+---
+
+## 🎯 Sprint 3 Issues (6 issues)
+
+### Priority 1: Foundation (Must Have)
+
+#### Issue #16: Complete Testing Framework
+**Status:** 🔴 Not Started
+**Priority:** P0-Critical
+**Estimated Effort:** 5-6 days
+**Assignee:** TBD
+
+**Description:**
+Build comprehensive test suite covering unit, integration, and E2E tests with >80% coverage.
+
+**Deliverables:**
+- [ ] Unit tests with pytest
+  - Test all models (User, Item, etc.)
+  - Test all API endpoints
+  - Test utility functions
+  - Mock external dependencies
+- [ ] Integration tests
+  - Database integration tests
+  - API integration tests
+  - External service integration tests
+- [ ] E2E tests with Playwright
+  - User authentication flow
+  - CRUD operations
+  - Error handling scenarios
+- [ ] Test fixtures and factories
+- [ ] Coverage report (HTML + CI integration)
+- [ ] Test documentation
+
+**Acceptance Criteria:**
+- Overall coverage >80%
+- Critical paths coverage >95%
+- All tests pass in CI
+- Test execution time <2 minutes
+
+**Technical Notes:**
+- Use pytest-asyncio for async tests
+- Use pytest-mock for mocking
+- Use Playwright for E2E tests
+- Generate coverage with pytest-cov
+
+**Files to Create:**
+```
+tests/
+├── unit/
+│   ├── test_models.py
+│   ├── test_api_endpoints.py
+│   └── test_utils.py
+├── integration/
+│   ├── test_database.py
+│   ├── test_api_integration.py
+│   └── test_external_services.py
+├── e2e/
+│   ├── test_auth_flow.py
+│   ├── test_crud_operations.py
+│   └── test_error_handling.py
+├── conftest.py (fixtures)
+└── factories.py (test data factories)
+```
+
+**Dependencies:** None
+
+---
+
+#### Issue #20: Infrastructure as Code (Terraform + K8s)
+**Status:** 🔴 Not Started
+**Priority:** P0-Critical
+**Estimated Effort:** 5-6 days
+**Assignee:** TBD
+
+**Description:**
+Implement Infrastructure as Code for reproducible environments across dev/staging/prod.
+
+**Deliverables:**
+- [ ] Terraform modules
+  - Cloud provider setup (AWS/GCP/Azure)
+  - Networking (VPC, subnets, security groups)
+  - Kubernetes cluster provisioning
+  - Database (RDS/Cloud SQL)
+  - Object storage (S3/GCS)
+  - Monitoring infrastructure
+- [ ] Helm charts
+  - Application deployment chart
+  - Database migration job
+  - Monitoring stack (Prometheus, Grafana, Loki)
+  - Ingress configuration
+- [ ] Environment configurations
+  - `terraform/environments/dev/`
+  - `terraform/environments/staging/`
+  - `terraform/environments/prod/`
+- [ ] State management
+  - Remote state backend (S3/GCS)
+  - State locking (DynamoDB/Cloud Storage)
+- [ ] Cost optimization
+  - Resource tagging
+  - Auto-scaling policies
+  - Spot instances for non-prod
+
+**Acceptance Criteria:**
+- Infrastructure can be provisioned from scratch in <30 minutes
+- All environments have parity (same structure, different scale)
+- State is stored remotely and locked
+- Cost estimates documented
+
+**Technical Notes:**
+- Use Terraform workspaces for environments
+- Use Helm values files for environment-specific configs
+- Document all variables and outputs
+- Include destroy procedures
+
+**Files to Create:**
+```
+terraform/
+├── modules/
+│   ├── networking/
+│   ├── kubernetes/
+│   ├── database/
+│   └── monitoring/
+├── environments/
+│   ├── dev/
+│   ├── staging/
+│   └── prod/
+└── backend.tf
+
+deployment/helm/gold-template/
+├── templates/
+│   ├── deployment.yaml
+│   ├── service.yaml
+│   ├── ingress.yaml
+│   ├── configmap.yaml
+│   └── secret.yaml
+├── values-dev.yaml
+├── values-staging.yaml
+└── values-prod.yaml
+```
+
+**Dependencies:** None
+
+---
+
+### Priority 2: Optimization (Should Have)
+
+#### Issue #17: Enhanced CI Pipeline
+**Status:** 🔴 Not Started
+**Priority:** P1-High
+**Estimated Effort:** 2-3 days
+**Assignee:** TBD
+
+**Description:**
+Optimize CI/CD workflows for faster feedback and better resource utilization.
+
+**Deliverables:**
+- [ ] Parallel test execution
+  - Split tests into groups
+  - Run groups in parallel jobs
+  - Aggregate results
+- [ ] Matrix builds
+  - Python 3.10, 3.11, 3.12
+  - Multiple OS (Ubuntu, macOS)
+- [ ] Caching strategies
+  - pip dependencies cache
+  - Docker layer cache
+  - Test result cache
+- [ ] Fast feedback
+  - Fail fast on linting errors
+  - Run unit tests before integration tests
+  - Skip unnecessary jobs on doc-only changes
+
+**Acceptance Criteria:**
+- CI pipeline completes in <5 minutes
+- Cache hit rate >80%
+- Parallel execution reduces time by >50%
+
+**Technical Notes:**
+- Use GitHub Actions matrix strategy
+- Use actions/cache for dependencies
+- Use Docker buildx for layer caching
+
+**Files to Update:**
+```
+.github/workflows/
+├── ci.yml (enhance existing)
+└── test-matrix.yml (new)
+```
+
+**Dependencies:** Issue #16
+
+---
+
+#### Issue #25: Auto Documentation Publishing
+**Status:** 🔴 Not Started
+**Priority:** P1-High
+**Estimated Effort:** 3-4 days
+**Assignee:** TBD
+
+**Description:**
+Automated documentation deployment with versioning and search.
+
+**Deliverables:**
+- [ ] MkDocs setup
+  - Material theme
+  - Navigation structure
+  - Code highlighting
+  - Mermaid diagrams
+- [ ] Auto-deploy to GitHub Pages
+  - Deploy on main branch push
+  - Deploy on release tags
+- [ ] Versioned documentation
+  - mike for version management
+  - Version selector in UI
+- [ ] Search functionality
+  - Built-in search
+  - Search analytics
+- [ ] API documentation
+  - Auto-generate from OpenAPI spec
+  - Include examples and schemas
+
+**Acceptance Criteria:**
+- Documentation auto-deploys on push
+- Multiple versions accessible
+- Search works across all pages
+- API docs auto-generated
+
+**Technical Notes:**
+- Use MkDocs Material theme
+- Use mike for versioning
+- Use mkdocstrings for API docs from docstrings
+
+**Files to Create:**
+```
+docs/
+├── index.md
+├── getting-started.md
+├── api/
+│   └── reference.md
+├── guides/
+│   ├── deployment.md
+│   └── testing.md
+└── architecture/
+    └── overview.md
+
+mkdocs.yml
+.github/workflows/docs.yml
+```
+
+**Dependencies:** Issue #11 (documentation structure)
+
+---
+
+### Priority 3: Nice to Have (Could Have)
+
+#### Issue #24: Enhanced Security Scanning
+**Status:** 🔴 Not Started
+**Priority:** P2-Medium
+**Estimated Effort:** 3-4 days
+**Assignee:** TBD
+
+**Description:**
+Comprehensive security automation covering SAST, DAST, container scanning, and secret detection.
+
+**Deliverables:**
+- [ ] SAST (Static Application Security Testing)
+  - Bandit for Python
+  - Semgrep for custom rules
+- [ ] DAST (Dynamic Application Security Testing)
+  - OWASP ZAP for API testing
+- [ ] Container scanning
+  - Trivy for vulnerabilities
+  - Snyk for dependencies
+- [ ] Secret scanning
+  - GitGuardian or TruffleHog
+  - Pre-commit hooks
+- [ ] Security reports
+  - Upload to GitHub Security tab
+  - Generate SARIF reports
+
+**Acceptance Criteria:**
+- All scans run in CI
+- Critical vulnerabilities block merge
+- Reports uploaded to GitHub Security
+- Pre-commit hooks prevent secret commits
+
+**Technical Notes:**
+- Use GitHub Code Scanning for SARIF
+- Configure severity thresholds
+- Document remediation procedures
+
+**Files to Create:**
+```
+.github/workflows/
+├── security-scan.yml
+└── secret-scan.yml
+
+.pre-commit-config.yaml
+security/
+└── semgrep-rules.yml
+```
+
+**Dependencies:** None
+
+---
+
+#### Issue #23: Performance Testing Suite
+**Status:** 🔴 Not Started
+**Priority:** P2-Medium
+**Estimated Effort:** 3-4 days
+**Assignee:** TBD
+
+**Description:**
+Load and stress testing automation with performance budgets.
+
+**Deliverables:**
+- [ ] k6 test scripts
+  - Load tests (sustained traffic)
+  - Stress tests (peak traffic)
+  - Spike tests (sudden traffic)
+  - Soak tests (long duration)
+- [ ] Performance benchmarks
+  - Response time targets
+  - Throughput targets
+  - Error rate thresholds
+- [ ] CI integration
+  - Run on PR (smoke tests)
+  - Run on main (full suite)
+  - Regression detection
+- [ ] Performance budgets
+  - P95 latency <200ms
+  - Throughput >1000 RPS
+  - Error rate <0.1%
+
+**Acceptance Criteria:**
+- Performance tests run in CI
+- Regressions detected automatically
+- Results visualized in dashboard
+- Budgets enforced
+
+**Technical Notes:**
+- Use k6 for load testing
+- Use Grafana for visualization
+- Store results in InfluxDB
+
+**Files to Create:**
+```
+tests/performance/
+├── load-test.js
+├── stress-test.js
+├── spike-test.js
+└── soak-test.js
+
+.github/workflows/performance.yml
+performance/
+├── budgets.yml
+└── thresholds.yml
+```
+
+**Dependencies:** Issue #16
+
+---
+
+## 📅 Sprint Timeline
+
+### Week 1 (Days 1-5)
+
+**Day 1-2: Setup & Planning**
+- Sprint kickoff meeting
+- Environment setup
+- Issue refinement
+- Task breakdown
+
+**Day 3-5: Foundation Work**
+- Start Issue #16 (Testing Framework)
+  - Day 3: Unit tests setup + model tests
+  - Day 4: API endpoint tests
+  - Day 5: Integration tests setup
+
+- Start Issue #20 (Infrastructure as Code)
+  - Day 3: Terraform module structure
+  - Day 4: Networking + Kubernetes modules
+  - Day 5: Database + monitoring modules
+
+### Week 2 (Days 6-10)
+
+**Day 6-7: Complete Foundation**
+- Complete Issue #16
+  - Day 6: E2E tests with Playwright
+  - Day 7: Coverage report + documentation
+
+- Complete Issue #20
+  - Day 6: Helm charts
+  - Day 7: Environment configs + testing
+
+**Day 8-9: Optimization**
+- Issue #17: Enhanced CI Pipeline
+  - Day 8: Parallel execution + matrix builds
+  - Day 9: Caching + fast feedback
+
+- Issue #25: Auto Documentation
+  - Day 8: MkDocs setup + content
+  - Day 9: Versioning + auto-deploy
+
+**Day 10: Sprint Review & Retrospective**
+- Demo completed work
+- Update documentation
+- Sprint retrospective
+- Plan Sprint 4
+
+---
+
+## 🎯 Success Metrics
+
+### Code Quality
+- [ ] Test coverage >80%
+- [ ] All tests passing
+- [ ] No critical security vulnerabilities
+- [ ] Code review approval on all PRs
+
+### Infrastructure
+- [ ] Infrastructure provisioned via code
+- [ ] All environments deployed
+- [ ] Monitoring operational
+- [ ] Cost within budget
+
+### CI/CD
+- [ ] CI pipeline <5 minutes
+- [ ] Cache hit rate >80%
+- [ ] Deployment success rate >95%
+- [ ] Zero-downtime deployments
+
+### Documentation
+- [ ] All features documented
+- [ ] API docs auto-generated
+- [ ] Documentation deployed
+- [ ] Search functional
+
+---
+
+## 🚧 Risks & Mitigation
+
+### Risk 1: Infrastructure Complexity
+**Impact:** High
+**Probability:** Medium
+**Mitigation:**
+- Start with minimal viable infrastructure
+- Use managed services where possible
+- Document all decisions
+- Have rollback plan
+
+### Risk 2: Test Coverage Time
+**Impact:** Medium
+**Probability:** High
+**Mitigation:**
+- Prioritize critical paths first
+- Use test generators where possible
+- Parallelize test writing
+- Accept 80% coverage (not 100%)
+
+### Risk 3: CI Pipeline Performance
+**Impact:** Medium
+**Probability:** Medium
+**Mitigation:**
+- Implement caching early
+- Profile slow tests
+- Use parallel execution
+- Consider self-hosted runners
+
+---
+
+## 📋 Definition of Done
+
+An issue is considered "Done" when:
+- [ ] All deliverables completed
+- [ ] Code reviewed and approved
+- [ ] Tests written and passing
+- [ ] Documentation updated
+- [ ] Deployed to staging
+- [ ] Verified in staging
+- [ ] PR merged to main
+- [ ] Issue closed with summary
+
+---
+
+## 🔄 Sprint Ceremonies
+
+### Daily Standup (Async)
+- What did you complete yesterday?
+- What will you work on today?
+- Any blockers?
+
+### Sprint Review (Day 10)
+- Demo completed work
+- Gather feedback
+- Update backlog
+
+### Sprint Retrospective (Day 10)
+- What went well?
+- What could be improved?
+- Action items for next sprint
+
+---
+
+## 📊 Sprint Backlog
+
+| Issue | Priority | Effort | Status | Assignee |
+|-------|----------|--------|--------|----------|
+| #16 | P0 | 5-6d | 🔴 Not Started | TBD |
+| #20 | P0 | 5-6d | 🔴 Not Started | TBD |
+| #17 | P1 | 2-3d | 🔴 Not Started | TBD |
+| #25 | P1 | 3-4d | 🔴 Not Started | TBD |
+| #24 | P2 | 3-4d | 🔴 Not Started | TBD |
+| #23 | P2 | 3-4d | 🔴 Not Started | TBD |
+
+**Total Estimated Effort:** 21-30 days
+**Sprint Capacity:** 10 days (2 weeks)
+**Planned Commitment:** Issues #16, #20, #17, #25 (15-19 days)
+
+**Note:** Issues #24 and #23 are stretch goals if time permits.
+
+---
+
+## 🎓 Learning Objectives
+
+### Technical Skills
+- Terraform module development
+- Helm chart creation
+- Playwright E2E testing
+- GitHub Actions optimization
+- MkDocs documentation
+
+### Process Skills
+- Infrastructure as Code best practices
+- Test-driven development
+- CI/CD optimization techniques
+- Documentation automation
+
+---
+
+## 📚 Resources
+
+### Documentation
+- [Terraform Best Practices](https://www.terraform-best-practices.com/)
+- [Helm Chart Guide](https://helm.sh/docs/chart_template_guide/)
+- [Pytest Documentation](https://docs.pytest.org/)
+- [Playwright Documentation](https://playwright.dev/)
+- [MkDocs Material](https://squidfunk.github.io/mkdocs-material/)
+
+### Templates
+- `.claude/templates/` - Code templates
+- `.claude/prompts/` - Claude prompts for assistance
+
+### Tools
+- Terraform
+- Helm
+- pytest
+- Playwright
+- MkDocs
+- k6 (performance testing)
+
+---
+
+## ✅ Sprint 3 Checklist
+
+### Pre-Sprint
+- [x] Sprint planning document created
+- [ ] Issues created in GitHub
+- [ ] Issues added to project board
+- [ ] Team capacity confirmed
+- [ ] Dependencies identified
+
+### During Sprint
+- [ ] Daily standups
+- [ ] Code reviews
+- [ ] Testing
+- [ ] Documentation
+- [ ] Deployment to staging
+
+### Post-Sprint
+- [ ] Sprint review
+- [ ] Sprint retrospective
+- [ ] Update metrics
+- [ ] Plan Sprint 4
+
+---
+
+**Created:** 2025-12-31
+**Sprint Start:** 2025-12-31
+**Sprint End:** 2025-01-14
+**Next Sprint:** Sprint 4 (CD Pipeline + Blue-Green Deployment)
+
+🚀 **Ready to start Sprint 3!**