ai
advanced
FastAPI RAG Microservices
Solution Components
ai
fastapi
microservices
rag
kubernetes
Architecture Visual
flowchart TD
subgraph ingress ["Edge Layer"]
direction TB
edge("<div class='tech-node'><img src='/icons/tech/nginx.svg' /><img src='/icons/tech/cloudflare.svg' /><span>Ingress Gateway</span></div>")
end
subgraph services ["Microservices Mesh"]
direction TB
query_svc("<div class='tech-node'><img src='/icons/tech/fastapi.svg' /><span>Query Service</span></div>")
doc_svc("<div class='tech-node'><img src='/icons/tech/fastapi.svg' /><span>Document Service</span></div>")
embed_svc("<div class='tech-node'><img src='/icons/tech/fastapi.svg' /><span>Embedding Service</span></div>")
end
subgraph state ["State & Cache"]
direction TB
db("<div class='tech-node'><img src='/icons/tech/postgresql.svg' /><span>App Database</span></div>")
cache("<div class='tech-node'><img src='/icons/tech/redis.svg' /><span>Token Cache</span></div>")
end
subgraph vector_tier ["Vector Intelligence"]
direction TB
vectors("<div class='tech-node'><img src='/icons/tech/qdrant.svg' /><img src='/icons/tech/pinecone.svg' /><span>Vector Search</span></div>")
end
subgraph infra ["Infrastructure"]
k8s("<div class='tech-node'><img src='/icons/tech/kubernetes.svg' /><span>K8s Cluster</span></div>")
docker("<div class='tech-node'><img src='/icons/tech/docker.svg' /><span>Container Registry</span></div>")
end
edge --> query_svc
query_svc --> cache
query_svc --> vectors
doc_svc --> db
doc_svc --> embed_svc
embed_svc --> vectors
query_svc -.-> k8s
doc_svc -.-> k8s
embed_svc -.-> k8s
FastAPI RAG Microservices
Production-ready microservices architecture for AI-powered applications.
Description
This blueprint demonstrates a scalable microservices architecture for RAG (Retrieval-Augmented Generation) applications. It uses FastAPI for high-performance services, including a dedicated Query Service, Document Service, and Embedding Service. Security is managed through centralized RBAC/ABAC policies. The infrastructure is containerized with Docker and orchestrated via Kubernetes, with vector search powered by Qdrant or Pinecone.
Tech Stack
| Component | Technology |
|---|---|
| API Framework | FastAPI (Python) |
| Vector Search | Qdrant, Pinecone |
| Orchestration | Kubernetes, Docker |
| Database | PostgreSQL |
| Caching | Redis |
| Edge | Nginx / Cloudflare |
Cloud Cost Estimator
Dynamic Pricing Calculator
$0 / month
MVP (1x) Startup (5x) Growth (20x) Scale (100x)
MVP Level
Compute Resources
$ 15
Database Storage
$ 25
Load Balancer
$ 10
CDN / Bandwidth
$ 5
* Estimates vary by provider & region