# Shared PostgreSQL instance, reusable across applications (miniflux, n8n, ...).
# Each application gets its own database (see create-db-*-job.yaml), all
# reachable through the "postgres" Service below.
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgres
  namespace: postgres
  labels:
    app.kubernetes.io/name: postgres
spec:
  serviceName: postgres
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: postgres
  template:
    metadata:
      labels:
        app.kubernetes.io/name: postgres
    spec:
      containers:
        - name: postgres
          image: postgres:18-alpine
          ports:
            - name: postgres
              containerPort: 5432
          envFrom:
            - secretRef:
                name: postgres-admin
          env:
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: data
              mountPath: /var/lib/postgresql/data
          resources:
            requests:
              cpu: 100m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 512Mi
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "$(POSTGRES_USER)"]
            initialDelaySeconds: 5
            periodSeconds: 10
          livenessProbe:
            exec:
              command: ["pg_isready", "-U", "$(POSTGRES_USER)"]
            initialDelaySeconds: 15
            periodSeconds: 20
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 5Gi