apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: paperclip-postgres
  namespace: paperclip
spec:
  serviceName: paperclip-postgres
  replicas: 1
  selector:
    matchLabels:
      app: paperclip-postgres
  template:
    metadata:
      labels:
        app: paperclip-postgres
    spec:
      containers:
      - name: postgres
        image: postgres:16-alpine
        imagePullPolicy: IfNotPresent
        ports:
        - name: postgres
          containerPort: 5432
          protocol: TCP
        env:
        - name: POSTGRES_DB
          value: paperclip
        - name: POSTGRES_USER
          value: paperclip
        - name: POSTGRES_PASSWORD
          valueFrom:
            secretKeyRef:
              name: paperclip-secrets
              key: POSTGRES_PASSWORD
        resources:
          requests:
            cpu: 250m
            memory: 512Mi
          limits:
            cpu: 1000m
            memory: 2Gi
        volumeMounts:
        - name: postgres-data
          mountPath: /var/lib/postgresql/data
          subPath: pgdata
        livenessProbe:
          exec:
            command:
            - /bin/sh
            - -c
            - pg_isready -U paperclip
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 3
        readinessProbe:
          exec:
            command:
            - /bin/sh
            - -c
            - pg_isready -U paperclip
          initialDelaySeconds: 5
          periodSeconds: 5
          timeoutSeconds: 3
          successThreshold: 1
          failureThreshold: 3
  volumeClaimTemplates:
  - metadata:
      name: postgres-data
      annotations:
        # Prevent Argo CD from deleting this PVC to avoid data loss
        argocd.argoproj.io/sync-options: Delete=false
    spec:
      accessModes:
      - ReadWriteOnce
      storageClassName: local-path
      resources:
        requests:
          storage: 20Gi