feat: add observability / tools used prometheus & grafana

app/main.py

@@ -3,6 +3,7 @@
 
 import structlog
 from fastapi import FastAPI
+from prometheus_fastapi_instrumentator import Instrumentator
 from redis.asyncio import Redis
 
 from app.core.config import settings
@@ -40,12 +41,14 @@ async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
     lifespan=lifespan,
 )
 
+Instrumentator().instrument(app).expose(app)
+
 setup_exception_handlers(app)
 
 app.include_router(user_router_v1, prefix='/api/v1', tags=['Users'])
 app.include_router(order_router_v1, prefix='/api/v1', tags=['Orders'])
 app.include_router(inventory_router_v1, prefix='/api/v1', tags=['Inventory'])
-app.include_router(media_router_v1, prefix='/api/v1/media', tags=['Media'])
+app.include_router(media_router_v1, prefix='/api/v1', tags=['Media'])
 
 
 @app.get('/health')

app/services/media/routes.py

@@ -15,7 +15,7 @@
 from app.services.user.models import User
 from app.shared.deps import get_current_user
 
-router_v1 = APIRouter(prefix='/api/v1/media', tags=['Media'])
+router_v1 = APIRouter(prefix='/media', tags=['Media'])
 
 
 @router_v1.post('/products/{product_id}/upload_url', response_model=ImageUploadResponse)

docker-compose.yaml

@@ -4,6 +4,8 @@ volumes:
   fairdrop-s3:
   fairdrop-app:
   fairdrop-gateway:
+  fairdrop-prometheus:
+  fairdrop-grafana:
 
 services:
   postgres:
@@ -89,3 +91,24 @@ services:
       - '${GATEWAY_PORT}:80'
     volumes:
       - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro
+
+  prometheus:
+    image: prom/prometheus:latest
+    container_name: prometheus_fairdrop
+    ports:
+      - '9090:9090'
+    volumes:
+      - ./infrastructure/prometheus/prometheus.yaml:/etc/prometheus/prometheus.yml:ro
+      - fairdrop-prometheus:/prometheus
+    depends_on:
+      - app
+
+  grafana:
+    image: grafana/grafana:latest
+    container_name: grafana_fairdrop
+    ports:
+      - '3000:3000'
+    volumes:
+      - fairdrop-grafana:/var/lib/grafana
+    depends_on:
+      - prometheus

infrastructure/prometheus/prometheus.yaml

@@ -0,0 +1,7 @@
+global:
+  scrape_interval: 5s
+
+scrape_configs:
+  - job_name: 'fairdrop_fastapi_app'
+    static_configs:
+      - targets: ['app:8000']