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Implementation Roadmap - Football Field Booking System

Version: 1.0 Last Updated: 2026-01-13 Owner: PM / Tech Lead Duration: 20 weeks Cadence: 10 sprints (2 weeks each)

1) Timeline Overview (20 Weeks / 10 Sprints)

Sprint 0:  Week 1-2   Foundations & Setup
Sprint 1:  Week 3-4   User Management + Auth
Sprint 2:  Week 5-6   Field Management
Sprint 3:  Week 7-8   Booking Core
Sprint 4:  Week 9-10  Booking Advanced + Payment MVP
Sprint 5:  Week 11-12 Notifications + MVP Polish
Sprint 6:  Week 13-14 Security + Performance
Sprint 7:  Week 15-16 Monitoring + Observability
Sprint 8:  Week 17-18 Deployment + Production Readiness
Sprint 9:  Week 19-20 Frontend Integration + Testing + Go-live

2) Team Allocation (Example)

Role Capacity Notes
Tech Lead 1 Architecture, PR reviews, critical paths
Backend Engineer A 1 booking-service + gateway
Backend Engineer B 1 field-service + user-service
Backend Engineer C 1 payment-service + notification-service
DevOps Engineer 0.5 CI/CD, K8s, observability
QA Engineer 0.5 test plans, automation, E2E

3) Sprint-by-Sprint Plan

Sprint 0 (Week 1–2): Setup & Foundations

Goals

  • NX monorepo stable, CI green
  • Docker compose infra running locally
  • Service scaffolding + shared libraries

Scope

  • Repo standards: linting, formatting, commit hooks
  • Shared libs: database, cache, messaging, observability
  • Health endpoints + Swagger setup

Deliverables

  • All services start locally and expose /health
  • API Gateway routes to services

Success Criteria

  • CI passes on main
  • Docker Compose brings infra up reliably

Key Risks

  • Tooling drift (node/yarn versions)
  • Flaky local infra

Sprint 1 (Week 3–4): User Management (Auth + Profiles)

Goals

  • Keycloak integrated end-to-end
  • User profile APIs operational

Scope

  • Keycloak realm import and client configuration
  • Gateway token validation + RBAC guard scaffolding
  • User DB migrations + /users/me endpoints

Deliverables

  • GET /v1/users/me, PUT /v1/users/me
  • Role-based route protection

Test Plan

  • Auth invalid/expired token tests
  • Resource-level checks for profile updates

Sprint 2 (Week 5–6): Field Management

Goals

  • Field CRUD and search working
  • Admin approval workflow in place

Scope

  • Field DB migrations
  • Owner-only create/update
  • Search filters and pagination
  • Optional caching for field details/search

Deliverables

  • POST /v1/fields, PUT /v1/fields/:id, GET /v1/fields/search
  • Admin PUT /v1/fields/:id/status

Test Plan

  • Integration tests for search and RBAC
  • k6 baseline for search latency

Sprint 3 (Week 7–8): Booking Core

Goals

  • Booking create/cancel endpoints
  • No double-booking protection

Scope

  • Booking DB migrations
  • Conflict detection (overlap check + Redis lock)
  • Availability lookup by date

Deliverables

  • POST /v1/bookings, GET /v1/bookings/me, PUT /v1/bookings/:id/cancel
  • GET /v1/fields/:id/availability (gateway route)

Test Plan

  • Concurrency integration test (2 → 10 concurrent booking attempts)
  • Performance test for booking create

Sprint 4 (Week 9–10): Booking Advanced + Payment MVP

Goals

  • Payment intent creation and webhook confirmation
  • Booking status updates on payment success

Scope

  • Payment DB migrations + idempotency keys
  • Provider integration abstraction
  • Webhook signature verification and replay protection
  • Saga choreography:
  • payment success event → booking confirmed

Deliverables

  • POST /v1/payments/create, POST /v1/webhooks/*, GET /v1/payments/:id
  • Kafka events: PAYMENT_SUCCESS, BOOKING_CONFIRMED (if enabled)

Test Plan

  • Webhook invalid signature and replay tests
  • E2E: booking → payment success → booking confirmed

Sprint 5 (Week 11–12): Notifications + MVP Polish

Goals

  • Event-driven notifications working
  • MongoDB logging for notification attempts

Scope

  • Notification service consumes Kafka events
  • Email sending (provider integration)
  • Retry strategy (BullMQ optional)
  • Consistent response model and errors across services

Deliverables

  • Booking and payment confirmations via email
  • MongoDB notification_logs populated

Test Plan

  • End-to-end: search→book→pay→notify
  • Notification failure retry tests

Sprint 6 (Week 13–14): Security + Performance

Goals

  • Security controls production-ready
  • Performance budgets met

Scope

  • Rate limiting policies hardened
  • CORS allowlist + security headers
  • Audit logs for admin/payment actions
  • DB indexes and caching improvements

Deliverables

  • Security regression suite baseline
  • Performance report (p95/p99)

Test Plan

  • OWASP ZAP baseline scan on staging (optional)
  • Load tests for search/booking/webhooks

Sprint 7 (Week 15–16): Monitoring + Observability

Goals

  • Full tracing and dashboards in Signoz
  • Alerts for key SLO breaches

Scope

  • OTEL enabled in all services
  • Dashboards for RED/USE metrics
  • Kafka lag monitoring
  • Alert policies and on-call playbook

Deliverables

  • Signoz dashboards for each service
  • Alert rules and runbook

Sprint 8 (Week 17–18): Deployment + Production Readiness

Goals

  • Staging and production deployments via K8s
  • Backup/restore procedures validated

Scope

  • K8s manifests (deployments/services/ingress/hpa)
  • Secrets management
  • CI/CD pipeline for staging + manual gate for prod
  • Migration jobs per service
  • Backups + restore tests

Deliverables

  • Staging environment running end-to-end
  • Production readiness checklist draft

Sprint 9 (Week 19–20): Frontend Integration + Testing + Go-live

Goals

  • Stable API contract for frontend/mobile clients
  • Final quality gates and go-live

Scope

  • Contract verification with frontend
  • Full regression test suite
  • Demo script and go-live checklist
  • Release notes and post-launch monitoring

Deliverables

  • v1 API stable
  • Go-live executed with monitoring and rollback plan

4) Cross-Sprint Dependencies

Dependency Needed By Notes
Keycloak integration Sprint 1 Blocks protected endpoints
Field search Sprint 3 Booking needs fields
Booking conflict lock Sprint 3 Core correctness
Payment webhook security Sprint 4 Critical for integrity
Kafka topics + events Sprint 4–5 Needed for notifications
Observability baseline Sprint 0–7 Required for debugging
K8s manifests Sprint 8 Release readiness

5) Risk Management

Top Risks

  • Distributed consistency between booking/payment states.
  • Webhook security (forgery/replay).
  • Race conditions in booking conflict prevention.
  • Operational maturity for Kafka, monitoring, alerting.

Mitigations

  • Use idempotency keys + deduplication.
  • Implement outbox pattern (Phase 2) if event loss observed.
  • Add concurrency tests early (Sprint 3).
  • Add dashboards/alerts before production (Sprint 7).

6) Go-Live Checklist (High Level)

  • [ ] All services healthy in production
  • [ ] Auth + RBAC verified
  • [ ] Webhook verification enabled and tested
  • [ ] Backups configured + restore tested
  • [ ] Alerts configured and on-call ready
  • [ ] Rollback plan validated

Document Version: 1.0 Last Updated: 2026-01-13 Owner: PM / Tech Lead