Add postgres database for reports

postgres/app/kustomization.yaml

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+namespace: reports-postgres
+resources:
+- ../base
+- namespace.yaml

postgres/app/namespace.yaml

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+
+apiVersion: v1
+kind: Namespace
+metadata:
+  labels:
+    kubernetes.io/metadata.name: reports-postgres
+  name: reports-postgres
+

postgres/base/database.yaml

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+apiVersion: kubegres.reactive-tech.io/v1
+kind: Kubegres
+metadata:
+  name: report-db
+spec:
+
+   replicas: 2
+   image: postgres:18
+
+   database:
+      size: "30Gi"
+      storageClassName:  "standard"
+
+   backup:
+      schedule: "0 */1 * * *"
+      pvcName: report-db-backup
+      volumeMount: /var/lib/backup
+
+   env:
+      - name: POSTGRES_PASSWORD
+        valueFrom:
+           secretKeyRef:
+              name: report-db-credentials
+              key: superUserPassword
+
+      - name: POSTGRES_REPLICATION_PASSWORD
+        valueFrom:
+           secretKeyRef:
+              name: report-db-credentials
+              key: replicationUserPassword
+   scheduler:
+      affinity:
+         podAntiAffinity:
+            preferredDuringSchedulingIgnoredDuringExecution:
+            - podAffinityTerm:
+                labelSelector:
+                    matchExpressions:
+                    - key: app
+                      operator: In
+                      values:
+                      - report-db
+                topologyKey: kubernetes.io/hostname
+              weight: 100
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: report-db-credentials
+type: Opaque
+stringData:
+  superUserPassword: report-admin
+  replicationUserPassword: report-replication
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: report-db-backup
+spec:
+  storageClassName: "standard"
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: "200Mi"

postgres/base/kustomization.yaml

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+resources:
+- database.yaml

postgres/local/kustomization.yaml

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+resources:
+- ../app