add alembic and store metrics at db

alembic/compose.yaml

@@ -0,0 +1,12 @@
+version: "3.9"
+services:
+  db:
+    image: postgres
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: postgres
+    volumes:
+      - ./postgres_data:/var/lib/postgresql
+    ports:
+      - "5432:5432"