apiVersion: apps/v1
kind: StatefulSet
metadata:
  namespace: n8n
  name: n8n-postgresql
spec:
  replicas: 1
  selector:
    matchLabels:
      app: n8n-postgresql
  serviceName: n8n-postgresql
  template:
    metadata:
      labels:
        app: n8n-postgresql
    spec:
      restartPolicy: Always
      terminationGracePeriodSeconds: 60
      containers:
        - name: n8n-postgresql
          image: postgres:18
          resources:
            requests:
              cpu: 100m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 512Mi
          ports:
            - containerPort: 5432
          volumeMounts:
            - name: n8n-postgresql-database
              mountPath: /var/lib/postgresql/pgdata
          env:
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: n8n-secrets
                  key: db_password
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: n8n-secrets
                  key: db_user
            - name: POSTGRES_DB
              valueFrom:
                secretKeyRef:
                  name: n8n-secrets
                  key: db_name
      volumes:
        - name: n8n-postgresql-database
          persistentVolumeClaim:
            claimName: n8n-postgresql-pvc