feat: instrumented backend with prometheus endpoint

src/template_project/web_api/entry_point.py

@@ -15,6 +15,7 @@ from dishka.integrations.fastapi import setup_dishka
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from firebase_admin import credentials
+from prometheus_fastapi_instrumentator import Instrumentator
 
 from template_project.web_api.configuration import Configuration, load_configuration
 from template_project.web_api.ioc.make import make_ioc
@@ -72,6 +73,7 @@ def make_asgi_application(
     app.include_router(healthcheck.router)
     app.include_router(profile.router)
     app.include_router(notification.router)
+    Instrumentator().instrument(app).expose(app)
 
     setup_dishka(container=ioc, app=app)