apiVersion: v1
kind: Service
metadata:
  name: postgres-svc
spec:
  clusterIP: None
  selector:
    app: commerce-postgres
  ports:
    - name: postgres
      port: 5432
      targetPort: 5432
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: commerce-postgres
spec:
  serviceName: postgres-svc
  replicas: 1
  selector:
    matchLabels:
      app: commerce-postgres
  template:
    metadata:
      labels:
        app: commerce-postgres
    spec:
      terminationGracePeriodSeconds: 60
      containers:
        - name: postgres
          image: postgres:17.10-alpine3.24
          imagePullPolicy: IfNotPresent
          ports:
            - name: postgres
              containerPort: 5432
          env:
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: commerce-secrets
                  key: POSTGRES_USER
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: commerce-secrets
                  key: POSTGRES_PASSWORD
            - name: POSTGRES_DB
              valueFrom:
                secretKeyRef:
                  name: commerce-secrets
                  key: POSTGRES_DB
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          readinessProbe:
            exec:
              command:
                - sh
                - -c
                - pg_isready -U "$POSTGRES_USER" -d "$POSTGRES_DB"
            initialDelaySeconds: 10
            periodSeconds: 10
            timeoutSeconds: 5
            failureThreshold: 6
          livenessProbe:
            exec:
              command:
                - sh
                - -c
                - pg_isready -U "$POSTGRES_USER" -d "$POSTGRES_DB"
            initialDelaySeconds: 30
            periodSeconds: 20
            timeoutSeconds: 5
            failureThreshold: 6
          resources:
            requests:
              cpu: 100m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 768Mi
          volumeMounts:
            - name: postgres-data
              mountPath: /var/lib/postgresql/data
  volumeClaimTemplates:
    - metadata:
        name: postgres-data
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: local-path
        resources:
          requests:
            storage: 10Gi