add alembic and store metrics at db

k8s/cnpg.yaml

@@ -0,0 +1,43 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: fastapi-pg
+spec:
+  instances: 1
+  superuserSecret:
+    name: cluster-example-superuser
+  bootstrap:
+    initdb:
+      database: app
+      owner: app
+      secret:
+        name: cluster-example-app-user
+  storage:
+    size: 1Gi
+
+---
+apiVersion: v1
+data:
+  password: cGFzc3dvcmQxMjMK
+  username: cG9zdGdyZXM=
+kind: Secret
+metadata:
+  name: cluster-example-superuser
+type: kubernetes.io/basic-auth
+---
+apiVersion: v1
+data:
+  password: VHhWZVE0bk44MlNTaVlIb3N3cU9VUlp2UURhTDRLcE5FbHNDRUVlOWJ3RHhNZDczS2NrSWVYelM1Y1U2TGlDMg==
+  username: YXBw
+kind: Secret
+metadata:
+  name: cluster-example-app-user
+type: kubernetes.io/basic-auth
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: db-secrets
+type: Opaque
+data:
+  url: cG9zdGdyZXNxbCtwc3ljb3BnMjovL2FwcDpUeFZlUTRuTjgyU1NpWUhvc3dxT1VSWnZRRGFMNEtwTkVsc0NFRWU5YndEeE1kNzNLY2tJZVh6UzVjVTZMaUMyQGZhc3RhcGktcGctcncvYXBw