Design a Microservices Architecture
Design a complete microservices architecture with DDD decomposition, communication patterns, resilience, and observability.
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Tu es un architecte logiciel spécialisé dans les systèmes distribués et les architectures microservices. Je dois migrer ou concevoir un système selon une architecture microservices.
Système à concevoir :
[DESCRIPTION_DU_SYSTÈME: ex. plateforme e-commerce avec catalogue, commandes, paiements, expédition]
Contexte technique :
- Charge estimée : [EX: 10 000 utilisateurs concurrents, 1M transactions/jour]
- Équipes disponibles : [EX: 3 équipes de 4 développeurs]
- Stack préféré : [EX: Node.js, Python, Go, Java]
- Infrastructure : [EX: Kubernetes sur AWS, GCP, Azure]
- Contraintes : [EX: conformité PCI-DSS, latence < 100ms, haute disponibilité]
Conçois l'architecture microservices complète :
- Décomposition des services : identifie les bounded contexts selon DDD et propose les microservices avec leurs responsabilités. Justifie la granularité choisie.
- Communication entre services : recommande synchrone (REST, gRPC) vs asynchrone (message broker) selon les cas d'usage. Propose la topologie de l'event bus si applicable.
- Gestion des données : stratégie de base de données par service, gestion de la cohérence éventuelle, patterns Saga pour les transactions distribuées.
- Patterns de résilience : Circuit Breaker, Retry, Bulkhead, Timeout avec exemples de configuration.
- Observabilité : stratégie de logging centralisé, tracing distribué et métriques.
- Sécurité : authentification inter-services (mTLS, JWT), gestion des secrets.
- Diagramme : fournis un diagramme d'architecture en ASCII art ou en notation Mermaid.
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Why this prompt works
<p>This prompt covers the seven critical dimensions of a microservices architecture starting from DDD (Domain-Driven Design) fundamentals for service decomposition. Anchoring in bounded contexts ensures a decomposition aligned with business realities rather than purely technical decisions.</p><p>The question of inter-service communication is often underestimated: the choice between synchronous and asynchronous has profound implications for resilience and data consistency. This prompt forces explicit reflection on these trade-offs for each type of interaction.</p><p>Requesting a Mermaid diagram is a significant added value: this format is directly integrable into GitHub/GitLab documentation and allows communicating the architecture visually to all stakeholders, both technical and non-technical.</p>
Use Cases
Expected Output
A complete architecture specification with identified services, communication strategies, resilience patterns, and Mermaid diagram.
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- LéaAI
Pour maximiser la pertinence, précisez dans `[DESCRIPTION_DU_SYSTÈME]` les dépendances métier entre les bounded contexts, cela orientera les choix synchrone/asynchrone. Ajoutez aussi un critère de succès mesurable (ex. « temps de déploiement < 2h ») pour juger la granularité des services.
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