feat(metrics): add basic prometheus metrics, cluster scraping

.github/workflows/deploy-pr.yaml

@@ -101,7 +101,8 @@ jobs:
             --set image.digest="$DIGEST" \
             --set-string rabbitmq.password="$RABBITMQ_PASSWORD" \
             --set-string database.password="$DB_PASSWORD" \
-            --set-string database.encryptionSecret="$PR"
+            --set-string database.encryptionSecret="$PR" \
+            --set-string app.name="finance-tracker-pr-$PR"
 
       - name: Post preview URLs as PR comment
         uses: actions/github-script@v7

7project/backend/alembic/versions/2025_10_30_1342-59cebf320c4a_cascade_categories.py

@@ -0,0 +1,46 @@
+"""Cascade categories
+
+Revision ID: 59cebf320c4a
+Revises: 46b9e702e83f
+Create Date: 2025-10-30 13:42:44.555284
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision: str = '59cebf320c4a'
+down_revision: Union[str, Sequence[str], None] = '46b9e702e83f'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('category_transaction', sa.Column('category_id', sa.Integer(), nullable=False))
+    op.add_column('category_transaction', sa.Column('transaction_id', sa.Integer(), nullable=False))
+    op.drop_constraint(op.f('category_transaction_ibfk_2'), 'category_transaction', type_='foreignkey')
+    op.drop_constraint(op.f('category_transaction_ibfk_1'), 'category_transaction', type_='foreignkey')
+    op.create_foreign_key(None, 'category_transaction', 'transaction', ['transaction_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key(None, 'category_transaction', 'categories', ['category_id'], ['id'], ondelete='CASCADE')
+    op.drop_column('category_transaction', 'id_category')
+    op.drop_column('category_transaction', 'id_transaction')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('category_transaction', sa.Column('id_transaction', mysql.INTEGER(display_width=11), autoincrement=False, nullable=True))
+    op.add_column('category_transaction', sa.Column('id_category', mysql.INTEGER(display_width=11), autoincrement=False, nullable=True))
+    op.drop_constraint(None, 'category_transaction', type_='foreignkey')
+    op.drop_constraint(None, 'category_transaction', type_='foreignkey')
+    op.create_foreign_key(op.f('category_transaction_ibfk_1'), 'category_transaction', 'categories', ['id_category'], ['id'])
+    op.create_foreign_key(op.f('category_transaction_ibfk_2'), 'category_transaction', 'transaction', ['id_transaction'], ['id'])
+    op.drop_column('category_transaction', 'transaction_id')
+    op.drop_column('category_transaction', 'category_id')
+    # ### end Alembic commands ###

7project/backend/app/app.py

@@ -4,6 +4,7 @@ from datetime import datetime
 
 from fastapi import Depends, FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from prometheus_fastapi_instrumentator import Instrumentator, metrics
 from starlette.requests import Request
 
 from app.services import bank_scraper
@@ -15,11 +16,11 @@ from app.api.auth import router as auth_router
 from app.api.csas import router as csas_router
 from app.api.categories import router as categories_router
 from app.api.transactions import router as transactions_router
-from app.services.user_service import auth_backend, current_active_verified_user, fastapi_users, get_oauth_provider, UserManager, get_jwt_strategy
+from app.services.user_service import auth_backend, current_active_verified_user, fastapi_users, get_oauth_provider, \
+    UserManager, get_jwt_strategy
 from app.core.security import extract_bearer_token, is_token_revoked, decode_and_verify_jwt
 from app.services.user_service import SECRET
 
-
 from fastapi import FastAPI
 import sentry_sdk
 from fastapi_users.db import SQLAlchemyUserDatabase
@@ -31,7 +32,6 @@ sentry_sdk.init(
 )
 
 fastApi = FastAPI()
-app = fastApi
 
 # CORS for frontend dev server
 fastApi.add_middleware(
@@ -46,11 +46,21 @@ fastApi.add_middleware(
     allow_headers=["*"],
 )
 
+prometheus = Instrumentator().instrument(fastApi)
+
+prometheus.expose(
+    fastApi,
+    endpoint="/metrics",
+    include_in_schema=True,
+)
+
 fastApi.include_router(auth_router)
 fastApi.include_router(categories_router)
 fastApi.include_router(transactions_router)
 
 logging.basicConfig(filename='app.log', level=logging.INFO, format='%(asctime)s %(message)s')
+
+
 @fastApi.middleware("http")
 async def auth_guard(request: Request, call_next):
     # Enforce revoked/expired JWTs are rejected globally
@@ -88,6 +98,7 @@ async def log_traffic(request: Request, call_next):
     logging.info(str(log_params))
     return response
 
+
 fastApi.include_router(
     fastapi_users.get_oauth_router(
         get_oauth_provider("MojeID"),
@@ -114,6 +125,7 @@ fastApi.include_router(
 
 fastApi.include_router(csas_router)
 
+
 # Liveness/root endpoint
 @fastApi.get("/", include_in_schema=False)
 async def root():
@@ -136,4 +148,5 @@ async def debug_scrape_csas_all():
 async def debug_scrape_csas_user(user_id: str, user: User = Depends(current_active_verified_user)):
     logging.info("[Debug] Queueing CSAS scrape for single user via HTTP endpoint (Celery) | user_id=%s", user_id)
     task = load_transactions.delay(user_id)
-    return {"status": "queued", "action": "csas_scrape_single", "user_id": user_id, "task_id": getattr(task, 'id', None)}
+    return {"status": "queued", "action": "csas_scrape_single", "user_id": user_id,
+            "task_id": getattr(task, 'id', None)}

7project/backend/app/models/categories.py

@@ -7,8 +7,8 @@ from app.core.base import Base
 association_table = Table(
     "category_transaction",
     Base.metadata,
-    Column("id_category", Integer, ForeignKey("categories.id")),
-    Column("id_transaction", Integer, ForeignKey("transaction.id"))
+    Column("category_id", Integer, ForeignKey("categories.id", ondelete="CASCADE"), primary_key=True),
+    Column("transaction_id", Integer, ForeignKey("transaction.id", ondelete="CASCADE"), primary_key=True)
 )
 
 

7project/backend/app/models/transaction.py

@@ -21,4 +21,4 @@ class Transaction(Base):
 
     # Relationship
     user = relationship("User", back_populates="transactions")
-    categories = relationship("Category", secondary=association_table, back_populates="transactions")
+    categories = relationship("Category", secondary=association_table, back_populates="transactions", passive_deletes=True)

7project/backend/requirements.txt

@@ -38,6 +38,8 @@ MarkupSafe==3.0.2
 multidict==6.6.4
 packaging==25.0
 pamqp==3.3.0
+prometheus-fastapi-instrumentator==7.1.0
+prometheus_client==0.23.1
 prompt_toolkit==3.0.52
 propcache==0.3.2
 pwdlib==0.2.1

7project/charts/myapp-chart/templates/app-deployment.yaml

@@ -8,10 +8,12 @@ spec:
   selector:
     matchLabels:
       app: {{ .Values.app.name }}
+      endpoint: metrics
   template:
     metadata:
       labels:
         app: {{ .Values.app.name }}
+        endpoint: metrics
     spec:
       containers:
         - name: {{ .Values.app.name }}

7project/charts/myapp-chart/templates/monitoring.yaml

@@ -0,0 +1,14 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: fastapi-servicemonitor
+  labels:
+    release: kube-prometheus-stack
+spec:
+  selector:
+    matchLabels:
+      app: {{ .Values.app.name }}
+  endpoints:
+    - port: http
+      path: /metrics
+      interval: 15s

7project/charts/myapp-chart/templates/service.yaml

@@ -2,9 +2,12 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ .Values.app.name }}
+  labels:
+    app: {{ .Values.app.name }}
 spec:
   ports:
-    - port: {{ .Values.service.port }}
+    - name: http
+      port: {{ .Values.service.port }}
       targetPort: {{ .Values.app.port }}
   selector:
     app: {{ .Values.app.name }}

7project/frontend/vite.config.ts

@@ -4,21 +4,4 @@ import react from '@vitejs/plugin-react'
 // https://vite.dev/config/
 export default defineConfig({
     plugins: [react()],
-    server: {
-    proxy: {
-      // We'll proxy any request that starts with '/api-cnb'
-      '/api-cnb': {
-        // This is the real API server we want to talk to
-        target: 'https://api.cnb.cz',
-
-        // This is crucial: it changes the 'Origin' header
-        // to match the target, so the CNB server is happy.
-        changeOrigin: true,
-
-        // This rewrites the request path. It removes the '/api-cnb' part
-        // so the CNB server gets the correct path ('/cnbapi/exrates/daily...').
-        rewrite: (path) => path.replace(/^\/api-cnb/, ''),
-      },
-    },
-  },
 })

7project/meetings/2025-10-30-meeting.md

@@ -43,9 +43,9 @@ The tracker should not store the transactions in the database - security vulnera
 
 Last 3 minutes of the meeting, summarize action items.
 
-- [ ] Dont store data in database (security) - Load it on login (from CSAS API and local database), load automatically with email
-- [ ] Go through the checklist
-- [ ] Look for possible APIs (like stocks or financial details whatever)
-- [ ] Report
+- [ ] Change the name on frontend from 7project
+- [ ] Finalize the funcionality and everyting in the code part
+- [ ] Try to finalize report with focus on reproducibility
+- [ ] More high level explanation of the workflow in the report
 
 ---